|
Prof. Dr.D.Sc. Mohamed Ali Ahmed
(M. A. Ahmed) |
|
Total
of List_of_publications click here to open |
|
Class 1
Organic complexes |
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1. Magnetic Susceptibility of Mercuric
Iodide. |
|
H.Mikhail, M.A.Ahmed and I.Mekkawy |
|
J. Phys. Chem. Solids,
36, 1033-1035 (1975). |
|
ISSN:
0022-3697- I.F. :1.164
full text pdf... |
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2. Magnetic
Susceptibility of a Two-Dimensional Cu
(II) complexes. |
|
Proc. Math. Phys. Soc. Egypt., 44S,
25-30 (1977). |
|
M.A.Semary, M.F.Mostafa and M.A.Ahmed. |
| |
|
3. Optical and Magnetic Behaviour of (IPA)
CuCl3. |
|
Proc. Math. Phys. Soc. Egypt, 44S,
63-67 (1977). |
|
M.A.Semary, M.F.Mostafa and
M.A.Ahmed. |
| |
|
4. Magnetic
Susceptibility Studies of ((CH3)2CHNH3)2CuCl4. |
|
Phys. Stat. Sol.(a), 41, 295-297 (1977). |
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M.F.Mostafa, M.A.Semary and M.A.Ahmed. |
|
ISSN:
0031-8965, I.F.: 1.221
full text pdf... |
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5. High Temperature
Susceptibility of Copper Compounds Containing |
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CuCl42- or Cu2Cl62-
ions. |
|
Physica, 86-88B, 691-692 (1977). |
|
M.F.Mostafa, M.A.Semary and
M.A.Ahmed. |
|
ISSN=0921-4526, I.F.=
0.872
full text pdf... |
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6. Field Dependence of the
Susceptibility Maximum for Two-Dimensional |
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Antiferomagnet. |
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Phys. Letters 61A, 3, 183-184(1977). |
|
M.F.Mostafa, M.A.Semary and
M.A.Ahmed. |
|
ISSN:
0375-9601, I.F. : 1.468 full text pdf... |
| |
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7. Magnetic Susceptibility of (CH3NH3)2FeCl3Br.
An example of a |
|
Canted Spin System. |
|
Solid State Commun., 25, 443-445
(1978). |
|
M.A.Semary,M.F.Mostafa and M.A.Ahmed. |
|
ISSN:
0038-1098- I.F. : 1.556
full text pdf... |
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8. Magnetic
Susceptibility Investigation of Some Antiferromagnetic
Fe2+
Complexes |
|
J. Mag. Mag. Mater. , 15-18, 448-450 (1980). |
|
M.F.Mostafa, M.A.Semary and M.A.Ahmed. |
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full text pdf... |
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9. Magnetic Susceptibility of Some Cu2+
Complexes |
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Egypt. J. Solids, 2 , 1, 30-37 (1980) |
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M.F.Mostafa, M.A.Ahmed and M.Z.Said. |
| |
|
10. Conductivity Measurements of Cu (II) Complexes. |
|
Egypt. J. Solids, 3, 1, 199-208 (1981) |
|
M.A.Ahmed and M.K.Mohamed. |
| |
|
11. Dielectric Constant and Pyroelectricity of Some
Cu2+ complexes. |
|
Phys. Stat. Sol.(a) 69, K103 (1982). |
|
M.A.Ahmed, M.F.Mostafa and M.A.K.Mohamed. |
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ISSN: 0031-8965, I.F.: 1.221
|
| |
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12. Susceptibility of Diluted
Two-Dimensional (CH3NH3)2FepZn1-pCl4, |
|
Spin Canted Antiferromagnet. |
|
Egypt.
J. Sol. 4, 1-5 (1982). |
|
M.A.Semary, M.A.Ahmed and
M.F.Mostafa. |
| |
|
13. Thermal Studies on the Electrical Conductivity
of Some |
|
(CnH2n+1NH3)2CuCl4,
(n=1,2) and (CH2)2(NH3)2CuCl4
Complexes. |
|
Thermochimica Acta, 70 , 217-223 (1983). |
|
M.A.Ahmed and M.A. Abd El-Kaffar. |
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ISSN: 0040-6031, I.F. : 1.417 full text pdf... |
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14. Magnetic Susceptibility of (para - Br - C6H4NH3)2FeCl4
and |
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(meta - Cl - C6H4NH3)2FeCl2Br2.
|
|
Helvetica Physica Acta, 56 ,1088-1092
(1983). |
|
M.A.Ahmed. |
|
ISSN: 0018-0238 |
| |
|
15. Magnetic Susceptibility of Some Fe2+ Complexes
Containing a |
|
Benzene Ring.
|
|
Egypt. Journal of Math.
and Phys. Soc. Egypt. 58, 119-125 (1984) |
|
M.M.Abdel Kader and M.A.Ahmed. |
| |
|
16. Thermal Study of the
Magnetic History of
the Compound |
|
(CH3NH3)2FeCl4.
|
|
J. Materials Science Letters , 5 , 662-664 (1986). |
|
F.A.Radwan, M.A.Semary and M.A.Ahmed. |
|
ISSN=
0261-8028, I.F. :0.99 full text pdf... |
| |
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17. Thermal Studies on
the Dielectric
Constant of
Some |
|
(CnH2n) (NH3)2FeCl4
Compounds (n=2, 7 and 10). |
|
Thermochimica Acta, 105 , 295-301 (1986). |
|
M.A.Ahmed , M.M.El-Desoky and F.A.Radwan |
|
ISSN:
0040-6031, I.F. : 1.417 full text pdf... |
| |
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18. Magnetic Susceptibility of the Compound (CH2)10(NH3)2FeCl4. |
|
J. Mag. Mag. Materials, 67, 349-353 (1987). |
|
M.A.Ahmed , F.A.Radwan and M.M.El-Desoky. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
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19. Electrical Conductivity of the Compounds (CH2)n(NH3)2FeCl4-xBrx
, |
|
(n = 8, 9 and 10 ; x = 0, 1 and 2). |
|
J.Phys. Chem. Solids, 49 ,12 ,1385-1387 (1988). |
|
M.A.Ahmed and F.A.Radwan. |
|
ISSN: 0022-3697- I.F. :1.164
full text pdf... |
| |
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20. Experimental Study
of the Phase Transition in |
|
(CH2)8(NH3)2FeCl4-xBrx
, (x=0 , 1 and 2). |
|
Aust. J. Phys. 41 , 85-91(1988). |
|
M.A.Ahmed , M.M.El-Desoky and
F.A.Radwan. |
|
ISSN:
0160-4953, I.F. : 0.586 |
| |
|
21. Electrical Conductivity behavior in (CnH2n)(NH3+)2FeCl4
|
|
Complexes (n=2, 3, 7 and 10). |
|
Thermochimica Acta, 137, 255-161 (1989). |
|
M.A.Ahmed , M.A.Mousa and F.A.Radwan. |
|
ISSN: 0040-6031, I.F. : 1.417 full text pdf... |
| |
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22. Magnetic Susceptibility and Dielectric Behaviour of
|
|
(p-Cl-C6H4NH3)2FepZn1-pCl4
(p=0.1, 0.2, 0.4, 0.6, 0.75, 0.9 and 1.0) . |
|
J. Mag. Mag. Materials, 78, 430-434 (1989). |
|
M.A.Ahmed and M.A.Mousa. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
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23. Temperature Effect on Magnetic
and Electrical Properties of the Compound |
|
Fe(DMSO)2Cl2. J.Mater.Science Letters, 8,
104- 106 (1989). |
|
M.A.Ahmed and M.A.Mousa. |
|
ISSN=
0261-8028, I.F. :0.99 full text pdf... |
| |
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24. Dielectric Constant and Pyroelectricity for the
Compounds |
|
(CH2)9(NH3)2FeCl4-xBrx
;(x=0 or 1). |
|
Acta Physica Polonica A76, 6, 905-910 (1989). |
|
M.A.Ahmed, M.A.Mousa and M.M.El-Desoky. |
|
ISSN: 0587-4254, I.F. : 0.657 |
| |
|
25. Gamma-Irradiation Effects on the
Electrical Conductivity of Some |
|
Two-Dimensional Complexes: RMnCl4, RCoCl4 and
RMn0.5Co0.5Cl4; |
|
[R=H3N(CH2)8NH3].
|
|
J. Radioanal. Nucl. Chem.Lett., 135, (2), 99-109
(1989). |
|
M.A.Mousa, M.A.Ahmed, A.M.Summan and
A.M.Badawy. |
|
ISSN:
0236-5731, I.F. : 0.460 full text pdf... |
| |
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26. Thermal and
Electrical Studies on Some Two-Dimensional Chelated |
|
Compounds. Thermochimica Acta ,
140, 229-236 (1989). |
|
A.M.Summan, M.A.Mousa, M.A.Ahmed
and A.M.Badawy. |
|
ISSN: 0040-6031, I.F. : 1.417
full text pdf... |
| |
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27. Magnetic Susceptibility of (IPA)2FeCl4
, (IBuA)2FeCl4 and (IPA)2CuCl4.
|
|
J.Mag.Mag.Materials 80, 367-370
(1989). |
|
M.A.Ahmed and M.A.Mousa |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
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28. The Electrical Conductivity of Benzaldazine and its (o-, m-, and p-hydroxy
substituents). |
|
Thermochimica Acta, 168, 25-30
(1990). |
|
M.A.Ahmed , A. El-Sayed Badr,
M.El-Desoky Mostafa and
M.Shaaban Salah. |
|
ISSN:
0040-6031, I.F. : 1.417
full text pdf... |
| |
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29. Effect of
Ý-Irradiation
on the Electric Resistivity of Aniline |
|
Compounds. Proc.2nd. Cairo
International Symposium on Renewable |
|
Energy Sources,1-4 October , 1, 107
(1990) |
|
A.Z.Mohamed, M.A.Ahmed, S.S.Saleem
and A.H.Bassyoni. |
| |
|
30. The Electrical Conductivity of Some Azine Compounds. |
|
J.Mat.Sci., Materials in Electronics,
2, 11-13 (1991). |
|
B.A.El-Sayed, S.M.Shaaban,
M.M.El-Desoky and M.A.Ahmed. |
|
ISSN:
0957-4522, I.F. : 1.029
full text pdf... |
| |
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31. Photoconductivity and Dielectric
Constant Studies of Some Organic
Complexes |
|
Thermochimica Acta 186, 103-109
(1991). |
|
M.M.El-Desoky, M.A.Ahmed and
H.H.Higazy. |
|
ISSN:
0040-6031, I.F. : 1.417
full text pdf... |
| |
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32. Phase Transition Study of Some
Selected Azine Compounds. |
|
Thermochimica Acta, 197, 357-361
(1992). |
|
M.M.El-Desoky , S.A.Shaaban ,
M.A.Ahmed , H.H.Higazy and |
|
B.A.El-Sayed. |
|
ISSN:
0040-6031, I.F. : 1.417
full text pdf... |
| |
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33. Electrical Properties of Propylene Diamine Complexes. |
|
Arab.J.Applied Phys.and Education, 3,
145-156 (1992). |
|
F.H.Abdelkader, M.A.Ahmed and
M.S.Rizk. |
| |
|
34. The Magnetic
Susceptibility of the Compounds |
|
(CH2)m(NH3)2FeCl4-xBrx
; (m=8, 9 and x=0, 1 and 2) |
|
Solid State Comm. 84, 11,
1047-1049 (1992). |
|
F.A.Radwan, M.A.Ahmed and H.Mikhail. |
|
ISSN:
0038-1098- I.F. : 1.556
full text pdf... |
| |
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35. Electrical
Conduction in Some Gamma Irradiated and Unirradiated |
|
Two-Dimensional Compounds, (CH2)8(NH3)2Co1-xZnxCl4. |
|
J.Mat.Science:Materials in Electronics
2, 1-4 (1992). |
|
M.A.Ahmed, A.M.Summan and M.A.Mousa. |
|
ISSN:
0957-4522, I.F. : 1.029
full text pdf... |
| |
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36. Magnetic Susceptibility of the
Two-Dimensional Cu2+ Complexes. |
|
J.Mat.Science. 28, 1289-1292 (1993). |
|
A.Z.Mohamed, S.S.Saleem,
M.A.El-Ghandour and M.A.Ahmed. |
|
ISSN=1573-4803, I.F.=0.99
full text pdf... |
| |
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37. Electrical and Spectrophotometric
Properties of Charge Transfer |
|
Complexes of Picric acid and Some
Aniline Derivatives. |
|
J.Mat.Science: Materials in
Electronics, 4, 109-112 (1993) |
|
M.S.Rizk, Y.M.Issa, M.A.Ahmed and
S.M.Shaaban. |
|
ISSN:
0957-4522, I.F. : 1.029
full text pdf... |
| |
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38. Thermally Stimulated Currents of (CH2)8(NH3)2Fe1-xCdxCl4,
(x=0.15
¾
0.80). |
|
Thermochimica Acta , 255 ,
171-175(1995). |
|
K.A.Darwish, M.Mounir, M.A.Ahmed and
G.H.Zaki. |
|
ISSN:
0040-6031, I.F. : 1.417
full text pdf... |
| |
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39. Temperature Dependence of the Phase Transitions of Benzaldazine
|
|
and its o-, m- and p-nitro Derivatives. |
|
Thermochimica Acta, 256, 413-418 (1995). |
|
B.Al-Sayed , M.A.Ahmed, S.M.Shaaban and A.A.Shabana. |
|
ISSN: 0040-6031, I.F. : 1.417
full text pdf... |
| |
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40. Temperature Dependence of Dielectric Constant For
the Compounds |
|
(CH2)8(NH3)2MCl4
; (M = Mn and Fe). |
|
Phys. Stat. Sol. (a), 148, 321 (1995). |
|
M.A.Ahmed, K.A.Darwish, M.Mounir and G.H.Zaki. |
|
ISSN: 0031-8965, I.F.: 1.221
full text pdf... |
| |
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41. Effect of Metal Ions on the Dielectric
Properties of Layer Structure Perovskites. |
|
Physica B , 217, 133-142 (1996). |
|
M.M.Abd-el-Aal and M.A.Ahmed. |
|
ISSN=0921-4526,
I.F.= 0.872
full text pdf... |
| |
|
42. Dilution Effect on the
Dielectric Constant and the |
|
Electric Conductivity of Diamine Complexes . |
|
Physica Scripta 53, 113-117(1996). |
|
K.A.Darwish , M.A.Ahmed , M.Mounir and G.H.Zaki. |
|
ISSN 0031-8949, I.F. : 1.161
full text pdf... |
| |
|
43. Investigation of Electrical Transport in Ethylene Diamine |
|
Tetrachloride Metal Complexes. Physica
Scripta, 53,108-112 (1996). |
|
M.S.Abo-Ellil , F.H.Abd El-Kader , M.A.Ahmed and
M.S.Rizk. |
|
ISSN 0031-8949,
I.F. : 1.161
full text pdf... |
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|
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44. Temperature and frequency dependence of the
electrical properties |
|
of metal alginate complexes. |
|
Indian J.Phys.71A, 4, 395-407
(1997). |
|
M.A.Ahmed, F.A.Radwan , A.M.El-Refae , S.M.Abdelwahab and
R.M.Hassan. |
|
ISSN: 0017-9078, I.F. : 3.127 |
| |
|
45. Relative Permittivity and Electrical
Conductivity of Some Divalent |
|
Metal Alginate Complexes. |
|
Materials Letters, 30, 183-188 (1997). |
|
S.M.Abdel- Wahab , M.A.Ahmed , F.A.Radwan , R.M.Hassan and
A.M.El-Refae. |
|
ISSN: 0167-577X, I.F. : 1.353
full text pdf... |
|
|
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46. Effect of Metal and halogen Ions
on the Relative Permittivity of |
|
Some Diamine Complexes. |
|
Physica Scripta,
55, 746-749(1997). |
|
M.A.Ahmed, A.M.El-Refae, S.M.Abdel Wahab and
F.A.Radwan. |
|
ISSN:
0031-8949, I.F. : 1.161
full text pdf... |
| |
|
47. The Electrical
Conductivity of Some Diamine Complexes of The |
|
General
Formula (CH2)n(NH3)2MCl4-xYx,
[x=0,2&n=2,3&M=Cu,Co
and Y=Br, I]. |
|
Asian
J.Physics, 7, 1, 115-122 (1998). |
|
M.A.Ahmed, S.M.Abdel-Wahab,
A.M.Ibrahim and F.A.Radwan. |
|
ISSN:
0971-3093, I.F. : 1.566 |
| |
|
48. Theoretical Fitting For The Magnetic
Susceptibility of Two- Dimensional Antiferromagnet. |
|
Indian J.Phys. 73A(2), 195-203(1999) |
|
M.A.Ahmed and S.T.Bishay. |
|
ISSN:
0017-9078, I.F. : 3.127 |
| |
|
49.
Dielectric Properties of the Perovskites HDAMn1-xCdxCl4,
0£
x £
0.6 |
|
[Fourth International Scientific Conference
(F.I.S.C), |
|
[for Science,
Development and Environment], 27-29 March, p349-361
(2001). |
|
Al-Azhar University, Cairo, Egypt. |
|
M.A.Ahmed, Samiha T.Bishay and N. Helmy. |
| |
|
50.
Rare Earth Substitution Effect on the Electrical
Properties of
Perovskites |
|
International Conference on Materials Science and
Technology, |
|
April 2-4, (2001), Cairo
University, Beni-Suef , Egypt. |
|
M.A.Ahmed and M.A.Gabal. |
| |
|
51.
Effect of Dilution on The Magnetic Susceptibility of
Two-Dimensional System. |
|
Fourth International Scientific Conference
(F.I.S.C), [for Science, |
|
Development and Environment], 27-29 March, 337-347
(2001) |
|
Al-Azhar University, Cairo, Egypt. |
|
F.A.Radwan. M.A.Ahmed. |
| |
|
52.
Dependence of Exchange interaction Constant on Organic
Group and |
|
Halogen Ions of Organic Complexes. |
|
M.A.Ahmed and Samiha T.Bishay. |
|
J.Mat.Science Letters 20 (8), 725-728 (2001). |
|
ISSN=
0261-8028, I.F. :0.99 full text pdf... |
| |
53. Magnetic and Electric Properties of Thermochromic Cu2+ Complexes
|
|
M.A.Ahmed, Samiha T.Bishay, M.A.Gabal and N.
Helmy. |
|
Al-Azhar Bulletin of Science, Proceedings of 5th
Int.Sci.Conf. 25-27 |
March 2003 P213-223
|
| |
|
54. Studies on Lanthanide Dithizone Complexes |
|
G.S.El-Bahy,
A.A.Shabaka, M.A.Ahmed and R.Seoudi. |
|
Bull.NRC, Egypt, 29, 3,
(2004), 265-275. |
| |
|
55. Relaxation Phenomena in
EDAMn1-xCdxCl4
Perovskite |
|
M.A. Ahmed, Samiha T.
Bishay, M.A. Gabal, N. Helmy |
|
J.Materials Science 40
(2005) 411-416. |
|
I.F.=0.99 , ISSN=
1573-4803
|
| |
|
56. Magnetic Super-Exchange Interaction and structure of Copper(II) 1,4 butylene diamine
|
|
tetrachloride [NH3(CH2)4H3N]CuCl4 single crystal. |
|
M.A.Ahmed, I.S.Ahmed Farag and Nabilah M.Helmy. |
|
Third International conference of Modern Trends in PhysicsResearch (MTPR-08),
(2008)
|
|
full text pdf... |
|
Top |
| |
|
Class
2
Ferrites, Rare earth ferrites |
|
|
|
1. Thermal Studies on the Electrical Conduction mechanism
of
CuFe2O4. |
|
Phys.Stat.Sol.(a) 70, K71
(1982). |
|
S.A.Mazen, M.A.Ahmed and B.A.Sabrah. |
|
ISSN:
0031-8965, I.F.: 1.221
|
| |
|
2. Study of the Mixed Ferrite BaxTi4-2xFe2xO8
(x=0.65) with Hollandite |
|
Structure By Electrical Magnetic and Mössbauer Effect
Measurements. |
|
Egypt. J. Sol. 4, 17-22 (1982). |
|
Y.Abbas and M.A.Ahmed. |
|
|
3. The Deficiency Effect of Iron on The
Conduction Mechanism of Co0.5Zn0.5Fe2O4.
|
|
Phys.Stat.Sol.(a), 73, K307 (1982). |
|
S.A.Mazen and M.A.Ahmed. |
| ISSN:
0031-8965, I.F.: 1.221 |
| |
|
4. Electrical Resistivity of Ferrites of the
General Formula |
|
Mg1+tFe2-2tTitO4 (t =
0.1, 0.3, 0.4, 0.5). |
|
J. Materials Science , 18 , 2890-2892 (1983). |
|
M.A.Semary , M.A.Ahmed and Y.Abbas . |
| ISSN=
1573-4803, I.F. : 0.99 full text pdf... |
|
|
5. Electrical conduction in
Ý-Irradiated
and Unirradiated Zinc-Iron
ferrites. |
|
J.
Materials Science , 23 , 3083-3087
(1988). |
|
M.A.Mousa and M.A.Ahmed . |
| ISSN:
1573-4803- I.F. :0.99 |
| |
|
6. Electrical
Conduction in
Ý-Irradiated
and Unirradiated Fe3O4,CdFe2O4 |
|
and CoxZn1-xFe2O4
(0<
x <1)
Ferrites. |
|
Thermochimica Acta, 144, 45- 52 (1989). |
|
M.A.Mousa , A.M.Summan, M.A.Ahmed and
A.M.Badawy. |
|
ISSN:
0040-6031, I.F. : 1.417 full text pdf... |
| |
|
7. Electrical
Conduction in Some Gamma-Irradiated and Unirradiated |
|
Metal-Zinc Ferrite. |
|
Thermochimica Acta 158, 177-181 (1990). |
|
M.A.Mousa, A.M.Summan and M.A.Ahmed. |
|
ISSN:
0040-6031, I.F. : 1.417 full text pdf... |
|
|
|
8. Effect of Sintering Temperature and Frequency
on the Electrical |
|
Properties of Co0.22Zn0.78Fe2O4
Ferrite. |
|
Indian J. Physics, 71A, 1,
19-28(1997). |
|
M.A.Ahmed, K.A.Darwish and E.H.El-Khawas. |
|
ISSN: 0017-9078, I.F. :
3.127 |
| |
|
9. Effect of Cation Concentration on the
Relaxation Phenomena of |
|
Co- Zn Ferrite. |
|
Physica
Scripta, 55, 750-755 (1997). |
|
M.A.Ahmed, K.A.Darwish , H.Mechail , M.Mounir and
E.H.El-Khawas. |
|
ISSN: 0031-8949, I.F. :
1.161 full text pdf... |
| |
|
10. Heating Rate Effect on the Electrical
Properties of MnxZn1-xFe2O4
|
|
Ferrite (x=0.28,
0.48, 0.64 and 0.76). |
|
J.Mat.Science Letters 16,
1948-1951(1997). |
|
M.A.Ahmed, K.A.Darwish and E.H.El-Khawas. |
|
ISSN= 0261-8028, I.F. :0.99
full text pdf.. |
| |
|
11. Effect of Neutron Irradiation on the Polarization
Mechanism of Co -
Zn Ferrite. |
|
Egyptian J.Phys., 28, No.1-2,197-212(1997) |
|
M.A.Ahmed, F.A.Mohsen and K.A.Darwish. |
| |
|
12. Laser Effect
on the Electrical
Properties of Mg-Ti Ferrite.
|
|
Egyptian J.
Physics, 29 No3, 371-384 (1998). |
|
M.
A .Ahmed,
F.A.Mohsen, G.Abd-El-Latif and S.M.Abdel Wahab. |
| |
|
13. Dependence of
Dielectric Properties and Resistivity on the |
|
Composition of Li- Cd
Ferrite. |
|
Egypt. J.of Physics,
30(3), 305-315(1999). |
|
M. A. Ahmed, S. T. Bishay and E. H. El- Khawas. |
| |
|
14.Comparison Studies of
Electrical and Magnetic Behavior of Li- Cd
Ferrite. |
|
J. Materials Science
Letters, 19,791-794 (2000). |
|
M. A. Ahmed, E. H. El- Khawas and Samiha T.
Bishay. |
|
ISSN=
0261-8028, I.F. :0.99
full text pdf... |
| |
|
15.IR. Spectroscopy
, Magnetic Susceptibility, Mössbauer and |
|
ac Resistivity of Co-Zn
Ferrite.
|
|
Indian J.Phys. No.74A(6) 567-
572 (2000). |
|
M .A .Ahmed, E .H . El-Khawas,
M Y.Hassan and M.El-Desoky |
|
ISSN: 0017-9078, I.F. : 3.127 |
| |
|
16.Dependence of Dielectric Behavior of Mn-Zn Ferrite on
Sintering
Temperature. |
|
J.Materials Science 36, 5031-5035 (2001) |
|
M.A.Ahmed, E.H.El Khawas
and F.A.Radwan. |
|
ISSN: 1573-4803, I.F. : 0.99
full text pdf... |
| |
|
17.Effect of Ytterbium on the Electrical properties of
Li-Co ferrite. |
|
J.Phys.Chem. Solids, 62,
1039-1046 (2001). |
|
M.A.Ahmed , SamihaT.Bishay and
G.Abdelatif. |
|
ISSN: 0022-3697-
I.F. :1.164
full text pdf... |
| |
|
18.
Conductivity Improvement of Li-Co-Yb ferrite. |
|
J.Phys. D: Appl. Phys.
34, 1339-1345 (2001). |
|
M.A.Ahmed
and Samiha T Bishay. |
|
ISSN 0022-3727, I.F.: 2.077
full text pdf... |
| |
|
19. Application of Rietveld Method to the Structural
Characteristics of Substituted |
|
Copper Ferrite Compounds.
|
|
Cryst.Res.Technol. 36,(1), 85-92 (2001) |
|
I.S.Ahmed Farag,
M.A.Ahmed, S.M.Hammad and A.M.Moustafa. |
|
ISSN: 0232-1300, I.F. : 0.863
full text pdf... |
| |
|
20.
Effect of Rare Earth Ion Concentration on the Electrical
Properties of Mg-Ti Ferrite. |
|
Fourth International
Scientific Conference (F.I.S.C), [for Science, |
|
Development and
Environment], 27-29 March (2001). |
|
Al-Azhar University, Cairo,
Egypt. |
|
M.A.Ahmed, E.Ateia and
S.I.El Dek. |
| |
|
21.
Effect of Ti4+ Ions on the Magnetic and
Dielectric Properties of Mg-Ferrite |
|
J.Mag.Mag.Mat., 232 (3),
194-204 (2001). |
|
M.A.Ahmed,
G.Abd-Ellatif and M.Rashad. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
|
|
|
|
|
|
|
|
| |
|
23. Effect
of Frequency and Preparation Conditions on the
Electrical |
|
Properties of Mg-Ti Ferrites |
|
M.A.Ahmed, E.Ateia and L.M.Salah |
|
Egyptian J.Chemistry 45, 3, (2002) 641-656. |
|
|
| |
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
ISSN: 0022-3697- I.F. :1.164
full text pdf... |
| |
|
26. Rate of Heating and
Sintering temperature Effect on the Electrical |
|
Properties of Nd-Ferrite. |
|
M.A.Ahmed,
E.Ateia, S.I.El-Dek and F.M.Salem |
|
J.Materials Science, 38 (2003) 1087-1095. |
|
ISSN: 1573-4803, I.F. : 0.99
full text pdf... |
| |
|
27. Influence of Yttrium ions on the
magnetic properties of Ni-Zn ferrites |
|
M.A.Ahmed, N.Okasha and L Salah |
|
J.Magnetism and Magnetic Materials, 264 (2003) 241-250. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
28. Rare Earth Doping Effect on the Structural and Electrical Properties of Mg-Ti ferrite.
|
M.A.Ahmed, E.Ateia and S.I.El-Dek.
|
Materials Letters 57, (2003) 4256-4266.
|
ISSN: 0167-577X, I.F. : 1.353 full text pdf...
|
| |
|
29. Screening Effect of Ti4+
ions on the Electrical Conductivity and
|
|
Thermoelectric Power of Mg Ferrite. |
|
F.A.Radwan, M.A.Ahmed and G.Abdelatif. |
|
J.Physics and Chemistry of Solids 64, 12 (2003)
2465-2477. |
|
ISSN: 0022-3697- I.F.
:1.164
full text pdf... |
| |
30. The Effect of Charge Transfer Behavior on the Dielectric and ac
|
Conductivity of Co-Zn Ferrite Doped with Rare earth Element.
|
M.A.Ahmed and M. Wasfy.
|
Indian Journal of Pure and Applied Physics, 41 (2003) 731-738.
|
| |
|
31. The Dramatic Effect of Preparation Conditions on the
Electrical |
|
Properties of
Cox Zn1-x RyFe2-yO4. |
M.A.Ahmed, F. Abd Ellatif, G.S. El-Bahy and S. S. El
Sayed.
|
|
Al-Azhar Bulletin
of Science, Proceedings of 5th Int.Sci.Conf.
25-27 March 2003 |
| |
32. Transport and Magnetic Properties of Co-Zn-La ferrite.
|
M.A.Ahmed, N.Okasha and M.A.Gabal.
|
|
Materials Chemistry and Physics, 83 (2004) 107–113 |
|
I.F.=1.657, ISSN=0254-0584
full text pdf... |
| |
|
33.
The Role of Dy3+ ions and Sintering
Temperature on the Magnetic |
|
Characterization of Li-Co Ferrite. |
|
M.A.Ahmed
and Samiha T.Bishay. |
|
J.Mag.Mag.Mat.
279
(2004) 178-183. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
|
34. Dramatic Effect of Zn2+ Ions on the
Transport Mechanism and |
|
Exchange
Interaction Constant of Mn-La Ferrite. |
|
M.A.Ahmed,
N.Okasha and M.H.Wasfy.H.Wasfy |
|
Proceedings
of the Eighth Arab International Conference on |
|
Materials
Science, Alexandria, Egypt, 2004, 239-253. |
| |
|
35. Raman Spectra and Laser Resonance Interaction with
Some Rare Earth Doped Ferrite. |
|
M.A.Ahmed,
Y.Badr and M.H.Abdellatif. |
|
Proccedings
of the international workshop on laser chemistry and |
|
applications
to materials and biomedical research (October 2004). |
| |
|
36. Optical and Electrical Properties of Gd Doped Mn-Cr
Ferrite Thin
Film |
|
M.A.Ahmed,
Y.Badr, R.Seoudi and M.H.Abdellatif. |
|
Proccedings
of the international workshop on laser chemistry and |
|
applications
to materials and biomedical research (October 2004). |
| |
|
37. Effect of sintering conditions on the electrical
properties of |
|
Ni1-xZnxLa0.05Fe1.95O4 |
|
M.A.Ahmed,
E.Ateia, L.M.Salah and A.A.El-Gamal |
|
Physica
Status Solidi (a), 201, 13 (2004) 3010-3022. |
|
ISSN:
0031-8965, I.F.: 1.221
full
text pdf... |
| |
|
38. Structural, Electrical and Magnetic Properties of
Copper-Cadmium |
|
Ferrites Prepared from Metal Oxalates. |
|
M.A.Ahmed and M.A.Gabal |
|
J.Materials Science, 40 (2005), 387-398. |
|
I.F.=0.99 , ISSN=
1573-4803 |
| |
39. Correlation of the Physico
Chemical Properties of Zn-Substituted Li-
La Ferrite
|
M. A. Ahmed, N. Okasha and A. Ebrahem.
|
Ceramics
International, 31 (2005) 361-369.
|
|
ISSN: 1546-542X, I.F. : 1.128
full text pdf... |
| |
|
40. Structural and
electrical studies on La3+ substituted Ni–Zn
ferrites. |
|
M.A. Ahmed, E. Ateia.,
L.M. Salah, A.A. El-Gamal |
|
Materials
Chemistry and Physics 92 (2005) 310–321. |
|
I.F.=1.657,
ISSN=0254-0584
full text pdf... |
| |
|
41. Effect of Laser Irradiation on the electrical
Properties of |
|
Dysprosium doped Li-Co Ferrite. |
|
M.A.Ahmed and Samiha T.Bishay. |
|
Radiation Effects and Defects in Solids, 160, 9, (2005),
417–424. |
|
ISSN: 1042-0150, I.F. : 0.497
full text pdf... |
| |
|
42.
Effect of heat treatment and Fe-content on the
structural and |
|
magnetic
parameters of CaFexTi1-xO3-y;
0.05 ≤x ≤ 0.6 perovskite. |
|
M. A. Ahmed and Samiha T. Bishay. |
|
1st International Conference on Advanced
Materials and their. |
|
Applications., 12-14 December 2005, National
research Center, Dokki, Egypt.
|
| |
|
43. Spectroscopic and
electrical properties of Mg–Ti ferrite doped with |
|
different
rare-earth elements |
|
Physica B:
Condensed Matter 381, 1-2, (2006)144-155 |
|
M.A. Ahmed,
E. Ateia and F.M. Salem |
|
ISSN=0921-4526,
I.F.= 0.872
full text pdf... |
| |
|
44.
Does Ti4+ ratio improve the physical
properties of CdxCo1-x+tTitFe2-2tO4? |
|
M.A.Ahmed,
S.F.Mansour and S.I.El-Dek |
|
2nd
international conference of modern trends in physics
research |
|
MTPR06 -Egypt April
2006- Published by the American Institute of |
|
physics (AIP),V
888, p122. |
|
I.F.=
, ISSN=
0094-243X
full text pdf... |
| |
|
45.
Effect of gamma irradiation on the dielectric properties
of La doped CuZn ferrite |
|
M.A.Ahmed,
A.A.Ramadan, M.M .Kamal, M. Abdel Wahed
and A.Yousef |
|
2nd
international conference of modern trends in physics
research |
|
MTPR06-Egypt
April 2006- Published by the American Institute of |
|
physics (AIP),
888, p288 |
|
I.F.=
, ISSN=
0094-243X
full text pdf... |
| |
|
46. Variation of the Physical
Properties of Ni0.7Zn0.3CuzY0.01Fe1.99-zO4
; |
|
0≤z≤0.1 depending on Jahn-Teller Effect |
|
M.A.Ahmed, M.M.EL-Sayed and S.I.El-Dek |
|
THE XXVI CONFERENCE
ON: Solid State Physics and Materials |
|
Science 10 -14
September 2006 Alexandria, Egypt |
| |
|
47.
Structural, Electrical and Magnetic Properties of
La-doped Mn-Zn Ferrite |
|
M.A. Ahmed,
E. Ateia, L.M. Salah and A.K.El-Aziz |
|
THE XXVI CONFERENCE
ON: Solid State Physics and Materials |
|
Science, 10 -14
September 2006 Alexandria, Egypt |
| |
|
48.
Electrical Transport Properties of Barium- Titanium
Ferrite with a Hollandite Structure |
|
M.A.Ahmed, N.Okasha and M.A.Gabal |
|
Materials Chemistry and Physics, 99 (2006) 197-201. |
|
I.F.=1.657, ISSN=0254-0584
full text pdf... |
| |
|
49. The role of Mg
substitution on the Microstructure and Magnetic |
|
Properties
of BaCoZn W-Type Hexagonal ferrites. |
|
M.A. Ahmed,
N. Okasha, M. Aouf, and R.M. Kershi,
|
|
J.Magnetism and Magnetic Materials, 314 (2007), 128-134. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
|
50. Laser Induced Structural
and Transport Properties Change in Cu-Zn Ferrites
|
M. A. Ahmed, A. A. I. Khalil and S. Solyman
|
J.Materials Science,
42, 11 (2007),
4098-4109.
|
|
I.F.=0.99 , ISSN=
1573-4803
full text pdf... |
| |
|
51. Effect of rare earth
radius and concentration on the structural and |
|
transport properties of doped Mn–Zn ferrite |
|
E.Ateia,
M.A. Ahmed and A.K. El-Aziz |
|
Journal of Magnetism and Magnetic Materials, 311,
2, (2007), 545-
554. |
|
ISSN=
0304-8853, I.F.=1.212 |
| |
|
52.
Enhancement of the Physical Properties of Rare Earth
Substituted |
|
Mn-Zn Ferrites Prepared by Flash Method. |
|
M.A.Ahmed, N.Okasha, M.M.El-Sayed |
|
Ceramics International, 33 (2007) 49-58. |
|
I.F.=1.128, ISSN=
0272-8842
full text pdf... |
| |
|
53. Magnetic characterization
and thermoelectric power of |
|
Ni1−yZnyCu0.3Fe1.7
O4; 0.0≤y≤0.6 |
|
Journal of
Magnetism and Magnetic Materials, 308, 1, (2007) 40-45. |
|
M.A. Ahmed and
M.M. EL-Sayed. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
|
54.
The effect of Ti4+
ions and gamma radiation on the structure |
|
and
electrical properties of Mg ferrite |
|
M.A. Ahmed, E.
Ateia and F.M. Salem |
|
Journal of
Materials Science 42 (10), (2007), 3651-3660 |
|
I.F.=0.99
, ISSN:
1573-4803
full text pdf... |
| |
|
55. Effect of pressure on the
resistivity of spinel ferrite
M.A. Ahmed,
S.F. Mansour and S.I El-Dek |
|
Physica B:
Condensed Matter, 403 (2008) 224–230 |
|
ISSN=0921-4526,
I.F.= 0.872
full text pdf... |
| |
|
56.
Influence of Rare Earth Ions on the Structure and
Magnetic
|
|
Properties of
Barium W-type hexaferrite |
|
M.A. Ahmed, N. Okasha and R.M. Kershi, |
|
J.Magnetism and Magnetic Materials, 320 (2008) 1146–1150. |
|
ISSN=
0304-8853, I.F.=1.212
full text pdf... |
| |
|
57.
Preparation and Characterization of
nanometric Mn-Ferrite |
|
Via Different Methods |
|
M.A.Ahmed, N.Okasha and S.I.El-Dek |
|
Nanotechnology, 19 (2008) 065603. |
|
ISSN =0957-4484, I.F.=3.037
full text pdf... |
| |
|
58. Magnetic properties of
Ni-Ti substituted Ba-hexa ferrite. |
|
M.A.Ahmed, M.Roushdy and D.N.Abdel-Ghaffar |
|
Egyptian Journal of Solids, accepted 30-3-2008.
|
|
|
|
59.
Influence of Zn substitution on some physical properties
of Co- La ferrite. |
|
M.A.Ahmed and N.Okasha. |
|
Third International
conference of Modern Trends in Physics Research
|
|
(MTPR-08),
(2008)
|
| |
|
60.
Effects of rare earth oxides on some physical properties
of Li-Zn nanoparticle ferrites. |
|
M. A. Ahmed, N.Okasha, A. I. Ali, M. Hammam and J. Y.
Song. |
|
Third International conference of Modern Trends
in Physics Research |
|
(MTPR-08),
(2008) |
| |
|
61.
Effects of Rare Earths Ions on the Quality and Magnetic
Properties of Ag- Ferrites. |
|
M. A. Ahmed, N. O. Okasha. |
|
Third
International conference of Modern Trends in Physics
Research |
|
(MTPR-08),
(2008)
full text pdf... |
| |
|
62. Role of Cu2+ concentration
on the structural, spectroscopic and |
|
magnetic parameters of Y3+
substituted Ni-Zn ferrite. |
|
M.A.Ahmed,
M.M.EL-Sayed and S.I.El-Dek. |
|
Third International conference of Modern
Trends in Physics Research |
|
(MTPR-08),
(2008)
full text pdf... |
| |
|
63.Extraordinary
Role of Rare Earth Elements on the Transport |
|
Properties of Barium
W-type Hexa ferrite. |
|
M.A.Ahmed, N.Okasha
and R.M.Kershi. |
|
Materials Chemistry
and Physics, accepted MATCHEMPHYS-D-08-00629R1.(2009). |
|
ISSN:
0254-0584, I.F.1.657 |
|
64. Enhancement of the crystal size
and magnetic properties of Mg substituted Co ferrite.
M.A. Ahmed and A.A. EL- Khawlani
J.Mag.Mag.Mat., accepted
ISSN= 0304-8853, I.F.=1.212 |
|
|
|
65.
The effect of Ti4+
ions and gamma radiation on the structure |
|
and
electrical properties of Mg ferrite. |
|
M.A. Ahmed, E.
Ateia and F.M. Salem. |
|
Journal of
Materials Science 42 (10), (2007), 3651-3660. |
|
I.F.=0.99,
ISSN=
1573-4803 |
|
|
|
66.
Role of Cu2+ concentration on the structure and
transport properties of Cr–Zn ferrites |
|
M.A. Ahmed a,., N. Okasha b |
|
Journal of Magnetism and Magnetic Materials 321
(2009) 3436 – 3441
full text pdf... |
|
|
|
67. Could Mg content control the conduction mechanism of
Ba Co Zn-W-type hexagonal ferrites? |
|
M.A. Ahmed a,., N. Okasha b, R.M.
Kershic |
|
Journal of Magnetism and Magnetic Materials 321 (2009)
3967 – 3973
full text pdf... |
|
|
|
68.
Extraordinary role of rare-earth elements on the
transport properties of barium
W-type
hexaferrite |
|
M.A. Ahmed a,., N. Okasha b, R.M.
Kershic |
|
Materials Chemistry and Physics 113 (2009) 196 – 201
full text pdf... |
|
|
|
69.
The effect of highly activated hopping process on the
physical properties of
Co–Zn–La ferrite |
|
M.A. Ahmed a,., M.M. EL-Sayed
b, M.M. EL-Desoky c |
|
Physica B 405 (2010) 727 – 731
full text pdf... |
|
Top |
|
|
|
Class 3
Glasses |
|
|
|
1. The Effect of Doping
on the Kinetics of Crystallization in the Glassy
Alloy SeGe20 . |
|
J. Crystal
Growth , 88 , 411-414 (1988). |
|
M. A. Mousa
and M.A.Ahmed . |
|
ISSN: 0022-0248, I.F. : 1.809 |
| |
|
2. Crystallization Kinetics of Amorphous Ge20Se5Te75
. |
|
J. Crystal Growth, 92 , 259-262
(1988). |
|
M.A.Mousa and
M.A.Ahmed . |
|
ISSN:
0022-0248, I.F. : 1.809 |
| |
|
3. The Effect of Monovalent Metal Ions on the Electrical
Properties of |
|
Bismuth
Borosilicate Glass. |
|
M.A.Ahmed,
M.H.Wasfy, M.Mabrouk, M.G.Sharawy and I.Kashef. |
|
Proceedings
of the Eighth Arab International Conference on Materials
Science, |
|
Alexandria,
Egypt, 2004, 239-253. |
| |
|
4.
Electrical properties of some copper-containing
phosphate glasses. |
|
M.A. Ahmed, F. E. Salman, M.M.Morsi, K.M. El-Badry and
E. Metwally. |
|
J. Materials Science,
41, 5, (2006) 1667-1669.
|
|
I.F.=0.99 , ISSN=
1573-4803
full text pdf... |
|
Top |
|
Class 4
Semi
conductors
|
|
|
|
1.
Galvanomagnetic and Electrical Properties
of n-GaP. |
|
Egyptian J.Sol., 18, 2,
263-272 (1995). |
|
F.S.Terra, M.Mounir,
M.A.Ahmed and K.M.Mohamed. |
| |
|
2. Optical and electrical
properties of (Indium-Tin-Oxide/Silicon) Heterojunctions |
|
Solar cell. Fifth National Conference on Physics (14- 17
March, 43-52 (1999). |
|
M.A.Ahmed, I.Mekkawy,
H.Hegazy, G.S.El-Bahy and R.Seoudi. |
| |
|
3. Electrical and Photovoltaic Properties of Tin
Oxide – Silicon Heterojunction Solar Cells |
|
Egyptian Journal of Physics, 30(1), 31-42
(1999) |
|
I. Mekkawy, M. A. Ahmed, H. Higazy, G. El-Bahy
and R. Seoudy. |
| |
|
4. Electrical properties of [Pd – Au / (In x – Sn1-x
) oxide/ Si(P)/Al] heterojunction diodes. |
|
M.A.Ahmed, I.Mekkawy and A.A.Azab. |
|
J.Mat. Science: Mat.In Electronics 12
(2001) 703-706. |
|
ISSN: 0957-4522,
I.F. : 1.029 |
|
Top |
| |
|
Class
5
Ceramics and Cement |
|
|
|
1. Investigation of
Zeolite-Y Forms Using
Differential Scanning |
|
Calorimetry
and Electrical Conductivity. |
|
Thermochimica
Acta , 158, 53-59 (1990). |
|
A.K.Aboul-Gheit, A.M.Summan , M.A.Ahmed and M.A.Mousa. |
|
ISSN: 0040-6031, I.F. : 1.417 |
| |
|
2. Application of Magnetic
Susceptibility to Study
Low Iron |
|
Substitution in Tricalcium Aluminate. |
|
J. Am. Ceramic Soc. 78,
7,1958-1960 (1995). |
|
M.A.Ahmed,
M.Y.Hassan, S.Mahrous, H.Mikhail
and M.M.Eldesoky. |
|
ISSN: 0002-7820,
I.F. : 1.396 |
| |
|
3. The Effect of Iron Impurities on The Electrical
Conductivity of |
|
Dicalcium Silicate Phase of Cement Clinker. |
|
Al-Azhar Bull. Sci. 8, No.1, 91-96(1997). |
|
M.Y.Hassan, M.A.Ahmed, S.M.Youssef,
A.A.Abd El-Rahman and M.El-Desoky. |
| |
|
4. Differential Scanning
Calorimetry Study Of Ordinary
|
|
portland cement Mixed With Fly ash And Slag. |
|
A.E. Al-Salami , M.A.Ahmed, A.Al – Hajry and
S.Taha. |
|
First International Conference: Modern Trends in Physics
Research |
|
(MTPR-04, April 2004), American Institute of Physics.
|
| |
|
5. The
effect of temperature and pozzolanic materials on the
electrical |
|
conductivity of blended cement pastes at different
porosities. |
|
A. E.Al-Salami, A. Al-Hajry ,M.A.Ahmed and S.Taha. |
|
Silicate industrial,
Vol.71, No. (5-6), 49 (2006). |
|
I.F.= 0.639, ISSN=
0037-5225
full text pdf... |
|
|
|
6. The
effect of heat treatment on the thermo-mechanical
behavior in |
|
some blended cement pastes. |
|
A.E.Al-Salami, M.S.Al-Assiri, A.Al-Hajry, M.A.Ahmed and
S.Taha. |
|
International symposium on Metastable and
Nanocrystalline Materials 27th –
|
|
August Warsaw, Poland (2006).
full text pdf... |
| |
|
7.
Study of the effect of admixture on the dielectric
behavior of |
|
blended cement pastes at different conditions. |
|
A.E.Al.Salami, A.Al.Hajry, M.A.Ahmed and S.Taha. |
|
Silicate Industrial Vol 72, No3-4, p67, (2007) |
|
I.F.= 0.639, ISSN=
0037-5225
full text pdf... |
|
|
|
8. The
effect of curing time and porosity on the microstructure
|
|
hydrated products in some blended cement pastes. |
|
A.E.Al-Salami, M.S.Al-.Assiri, A.Al-Hajry, M.A.Ahmed and
S.Taha.
|
|
Silicate Industrial Vol 72, (9-10), p163, (2007). |
|
I.F.= 0.639, ISSN=
0037-5225
full text pdf... |
| |
|
9. Effect of Ni substitution
on the Structural and transport
properties of
|
|
NixMn0.8-xMg0.2Fe2O4; 0.0≤ x
≤0.40 Ferrite |
|
M. A. Ahmed, Samiha T. Bishay, S. I. El-Dek and
G. Omar |
|
J.Alloys and Compounds 509
(2011) 805-808. |
| |
|
10. Structural
and Magnetic Properties of nano-crystalline
Ag+ doped NiFe2O4
|
|
M.A.Ahmed, S.I.El-Dek,
I.M.El-Kashef and N.Helmy
|
|
Solid State Science, 13
(2011) 1176-1179 |
| |
|
11. Modification
of Mn nanoferrite Physical
Properties by Gamma, Neutron
|
| and Laser
Irradiations |
|
M. A. Ahmed, S.I.El-Dek,
S.F.Mansour and N.Okasha. |
|
Solid
State Science, 13 (2011) 1180-1186 |
| |
|
12. Conduction
mechanism and magnetic behavior of
dysprosium strontium
|
|
iron garnet
(DySrIG) |
|
M. A.
Ahmed, Samiha T. Bishay and S. I.
El-dek |
|
Materials
Chemistry and Physics, 126
(2011)780-785 |
| |
|
13. Large scale
applications of
NixMn0.8-xMg0.2Fe2O4; 0.1≤x≤0.35
using
laser irradiation
|
|
M. A.
Ahmed, S. I. El-Dek Samiha T.
Bishay and G. Omar |
|
Journal of
Alloys and Compounds, 509 (2011)
7891-7894 |
| |
|
14. Structural,
magnetic and magnetocaloric
properties of the lanthanum
deficient in
|
|
La0.8Ca0.2−xxMnO3 (x = 0-0.20)
manganites oxides |
|
M. Khlifi,
M. Bejar, O. EL Sadek, E. Dhahri, M.A.Ahmed, E.K. Hlil |
|
Journal of
Alloys and Compounds 509 (2011)
7410–7415 |
|
|
|
15. Novel multiferroic La0.95Sb0.05FeO3
orthoferrite
|
|
M.A. Ahmed,
M. Solyman Selim, M.M. Arman |
|
Materials
Chemistry and Physics, 129, 3,
(2011), 705-712. |
| |
|
16. Novelty preparation,
characterization and enhancement
of magnetic properties of
|
|
Mn
nanoferrites Using Safety Binder
(egg white) |
|
M.A. Ahmed, N.Okasha, S. I. El-Dek |
|
Solid
State Science, accepted |
|
|
|
17. Structural
and electrical properties of nanometric Ni-Cu ferrite
synthesized by
|
|
citrate precursor method |
|
M.A.Ahmed, S.F.Mansour,
M.Afifi |
|
J.Mag.Mag.Mat. 324 (2012)
4-10. |
|
Top |
|
Class 6 Polymers |
|
|
|
1.
Spectroscopic Studies and Some Physical
Properties of Some |
|
Metal
Biphthalocyanine Compounds. |
|
J.Indian Chem.Soc.LX, 550-553 (1983) |
|
M.A.Abd El-Ghaffar,
M.A.Ahmed and M.S.Rizk. |
|
ISSN: 0019-4522 |
| |
|
2. Neutron Dosimetry Measurement. |
|
Indian J.Phys. 70A, 619-625(1996). |
|
A.M.Basha, M.A.Ahmed, H.Kh.Marey and T.A.Hanafy. |
|
ISSN: 0017-9078,
I.F. : 3.127 |
| |
|
3.Gamma-Irradiation Effect on Dielectric Properties of Vanadate Doped Polyvinyle Alcohol. |
|
Indian J. Phys. 71A (6), 651-656 (1997) |
|
M.S.Abo-Ellil, M.A.Ahmed and M.A.El-Ahdal. |
|
ISSN: 0017-9078,
I.F. : 3.127 |
| |
|
4. Synthesis, Characterization and Electrical
Properties of Some Noval |
|
Phthalocyanine Polymer,
Analogues (Perylene Polymers). |
|
Egypt. J. Appl. Sci., 12, 5,
89-106 (1997). |
|
M.A.Abd El-Ghaffar , E.A.M.Youssef
, Noha R.El-Halawany and M.A.Ahmed. |
|
|
|
5. Effect of Dopant
Concentration on The Electrical
Properties of Polyvinyl Alcohol (PVA). |
|
J. Mat. Sci: Materials in Electronics,
9, 391-395(1998). |
|
M .A .Ahmed
and M.S.Abo-Ellil. |
|
ISSN: 0957-4522, I.F. : 1.029 |
|
|
|
6. Spectrophotometric
And Electrical Measurements of Phthalocyanine
Polymers. |
|
Die Angewandte Makromolekulare Chemie , 254 ,
1-9
(Nr.4289) (1998). |
|
M.A.Abd El-Ghaffar , E.A.M.Youssef , N.R.El-Halawany and
M.A.Ahmed. |
|
ISSN: 0003-3146, I.F. : 0.755 |
|
|
|
7.
Effect of Fast Neutrons and
Ý Radiation on
Cobalt-Gelatin Film. |
|
Journal of Applied
Polymer Science, 79, 1749-1755 (2001). |
|
M.A.Ahmed, A.M.Basha,
H.K.Marey, T.A.Hanafy. |
|
ISSN: 0021-8995, I.F. : 1.072 |
| |
|
8. Laser Irradiation Effect on
the Electrical Properties of Dyed Polyvinyl alcohol (PVA). |
|
M.A.Ahmed and M.A.Elahdal. |
|
International Journal of Polymeric Materials, 51, 243-
255 (2002). |
|
ISSN: 0091-4037, I.F. : 1.219 |
| |
9. Enhancement of the Transport and
Dielectric Behavior of Pure and
|
Blended CPVC by Metal Ions.
|
M.A.Ahmed, M.S.Abo Ellil and M.Tag El-Dine.
|
|
Indian J. of Physics, 79 (6), (2005), 559-562 |
|
ISSN: 0017-9078, I.F. : 3.127 |
| |
|
10. Optical Absorption and Dielectric Properties of PVA-
Gelatin Blend. |
|
M.A.Ahmed and
T.A.Hanafy. |
|
Indian J. of
Physics, 79 (10), (2005) 1149-1155. |
|
ISSN: 0017-9078, I.F. : 3.127 |
| |
|
11. Synthesis and Electrical
Properties of Some Poly Aromatic Amines. |
|
M.A.Abd El-Ghaffar,
W.M. Darwish and M.A.Ahmed. |
|
8th
Arab International Conference on Polymer Sceince and |
|
Technology,
27-30 November 2005, Sharm El-Sheik, Egypt. |
|
Top |
| |
|
Class
7
Perovskites |
|
1. Low Field Magnetoimpedance of Doped La-Manganite.
|
M..A.Ahmed, L.M.Salah and S.I.El-Dek.
|
|
Al-Azhar
Bulletin of Science, Proceedings of 5th
Int.Sci.Conf. 25-27 |
March 2003 P225-237.
|
| |
2. Spectroscopic and Structural Analysis
of Ca Substituted La
Orthoferrite.
|
M. A. Ahmed, R.
Seoudi and S.I.El-dek.
|
J.Molecular
Structure 754, 1-3, 41-44, (2005).
|
|
ISSN: 0022-2860, I.F. : 1.495 |
| |
|
3.
Correlation Between Electric and Magnetic Properties of
Ca Doped LaFeO3
Orthoferrite. |
|
M.A.Ahmed and
S.I.El-Dek. |
|
8th
Arab International Conference on Polymer Sceince and |
|
Technology,
27-30 November 2005, Sharm El-Sheik, Egypt.
full text pdf... |
| |
|
4.
Optimizing the Physical Characterizations of
Orthoferrites to be used as
|
|
Pressure and Gamma Sensor. |
|
M.A.Ahmed and S.I.El-Dek. |
|
Materials Letters, 60 (2006) 1437-1446. |
|
I.F.=1.353, ISSN=0167-577X
full text pdf... |
| |
|
5.
Extraordinary Role of Ca2+
Ions on the Magnetization of LaFeO3Orthoferrite. |
|
M.A.Ahmed and S.I.El-Dek. |
|
Materials Science and Engineering B: 128 (2006) 30-33. |
|
I.F.=1.331, ISSN=0921-5107
full text pdf... |
| |
|
6.
Evidence of Jahn-Teller Distortion and Phase Separation
in Ca Doped LaMnO3. |
|
M.A.Ahmed and S.I.El-Dek. |
|
Third International conference of Modern Trends
in Physics Research. |
|
(MTPR-08),
(2008)
full text pdf... |
| |
|
7.
Effect of annealing time, weight pressure and Fe doping
on the electrical and |
|
magnetic behavior of calcium titanate . |
|
M. A. Ahmed and Samiha T.
Bishay Materials Chemistry and Physics, |
|
acceptance number MAC12917,
(2009)
full text pdf... |
|
Top |
|
Class 8
Fruifull applications |
|
|
|
1. Studies on Controlling The Varroa
Mite (Varroa Jacobsoni) |
|
Infesting Honey Bees
Under the Effect
of Magnetic Field. |
|
J.Egypt.Ger.Soc.Zool. 20(E), 61-68 (1996). |
|
Z.M.El-Bachier,
M.A.Ahmed and M. Shoreit. |
|
ISSN: 0250-6807 |
| |
|
2.
Temperature and Frequency Dependence of Dielectric
Properties of |
|
PVC-Bisphenol
A Egyptian Corncob Resin Blend. |
|
M. A.
Ahmed and T. A. Hanafy. |
|
Al-Azhar
Bulletin of Science, Proceedings of 5th
Int.Sci.Conf. 25-27 |
|
March
2003 p271-286 |
| |
|
3.
Spectroscopic and Electrical Study of Water Hyacinth
Root. |
|
M.A.Ahmed, G.El-Bahy and M.Ibrahim. |
|
Bull.
NRC, Egypt, 29, 5, (2004) 523-533. |
| |
|
4. Spectroscopic study: Trace
metals in Nile River Sediments. |
|
G.S. El-Bahy, H.I. Abdel-Shafy, M.A.Ahmed, and M.Ibrahim. |
|
Bull.
NRC, Egypt, 29, 3, (2004) 301-311. |
| |
|
5. Role of Industrial Wastewater on the Contamination of
River Nile in Greater Cairo. |
|
M.A.Ahmed,
G.El-Bahy, H.I.Abdel-Shafy and M.Ibrahim |
|
Egypt.J.Chem,
48, 3, (2005), 355-363. |
|
ISSN: 0449-2285, I.F. :1.67 |
|
Top |
|
Class 9
Nanomaterials and nanotechnology |
| |
|
1. Preparation and
Characterization of
nanometric Mn-Ferrite
Via Different Methods. |
|
M.A.Ahmed, N.Okasha and S.I.El-Dek. |
|
Nanotechnology, 19 (2008) 065603. |
|
ISSN =0957-4484, I.F.=3.037
full text pdf... |
|
|
|
2. Effects of rare earth oxides
on some physical properties of Li-Zn nanoparticle
ferrites. |
|
M. A. Ahmed,
N.Okasha, A. I. Ali, M. Hammam and J. Y. Song.
|
|
Third International
conference of Modern Trends in Physics Research
|
|
(MTPR-08) ,
(2008)
full text pdf... |
|
|
|
3.
Enhancement of the crystal size andmagnetic properties
of Mg-substituted Co ferrite |
|
M.A.Ahmeda, A.A.EL-Khawlani b |
|
Journal of
Magnetism and Magnetic Materials, 321(2009)1959–1963
full text pdf... |
|
|
|
4.
The effect of urea-to-nitrates ratio on the morphology
and magnetic properties of |
|
Mn0.8Mg0.2FeM.A.
Ahmed |
|
Journal of Magnetism and Magnetic Materials 322 (2010)
763 –766
full text pdf... |
|
|
|
5. Bi-modal improvement of the physico-chemical
characteristics of PEG and MFe2O4 |
|
subnanoferrite .A. Ahmed a,., N. Okasha b, S.F. Mansour
c, S.I. El-deka |
|
Journal o f Alloys and Compounds 496 (2010) 345 – 350 full text pdf... |
|
|
|
6. In.uence of Co content on the characterization and
magnetic properties of magnetite |
|
M.A. Ahmed a, N. Okasha b, S.I. El-Dek a |
|
Ceramics International (2010)
full text pdf... |
|
7. Synthesis,
characterization and studies on magnetic and electrical
properties of LaAlyFe1-yO3 nanomultiferroic
M.A. Ahmed , N. Okasha, B. Hussein
Journal of Alloys and Compounds 553 (2013)
308–315 full text pdf... |
|
8. Magnetite–hematite
nanoparticles prepared by green methods for heavy metal
ions removal from water
M.A. Ahmed, S.M. Ali b, S.I. El-Dek, A. Galal
Materials Science and Engineering B, xxx (2013) xxx–
xxx full text
pdf... |
|
9. Synthesis of novel
ZnxCo1-xAl0.5Fe1.46La0.04O4; 0.0rxr0.6 nanowires,and
optimization of their transportan dmagnetic properties
M.A. Ahmed , SamihaT.Bishay , RashaM.Khafagy , N.M.Saleh
Journal of Magnetism and Magnetic Materials, 331
(2013) 256–263
full text pdf... |
|
| 10. Improvement of the
physical properties of novel
(1 ــ y) Co0.8Cu0.2Fe2O4 + (y) SrTiO3
nanocomposite
M.A. Ahmed, S.F. Mansour , M.A. Abdo
Materials Research Bulletin, 48 (2013) 1796–1805
full text pdf... |
|
11. Advanced imaging
techniques for characterization of
0.5BaTiO3/0.5Ni0.5Zn0.5Fe2O4
multiferroic nanocomposite
M.A. Ahmed, N. Okasha , N.G. Imam
Journal of Alloys and Compounds, 557 (2013)
130–141
full text pdf... |
|
12. Size confinement and
magnetization improvement by La3D doping in BiFeO3
quantum dots
M.A. Ahmed, E. Dhahri , S.I. El-Dek , M.S. Ayoub
Solid State Sciences, 20 (2013) 23-28
full text pdf... |
|
13. Structural
characterization and magnetic properties of smart CuCd
ferrite/LaSrCo manganite nanocomposites
M.A. Ahmed, SamihaT.Bishay, S.M.Salem-Gaballah
Journal of Magnetism and Magnetic Materials, 334
(2013) 96–101 full
text pdf... |
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Top |
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