Publications

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2021
El-khiyami, S. S., A. M. Ismail, and R. S. Hafez, "Characterization, Optical and Conductivity Study of Nickel Oxide based nanocomposites of Polystyrene", J. Inorganic and organometallic polymers and materials , vol. 31, pp. 4313-4325, 2021.
El-khiyami, S. S., and R. S. Hafez, "Dielectric study and Cole-Cole plots of poly(methyl methacrylate) doped with nanostructured metal oxides", J. Polym. Res. , vol. 28 , pp. 396, 2021.
Hafez, R. S., R. Ramadan, and S. S. El-khiyami, "Investigation of structural, optical, magnetic, and electrical properties of PMMA doped with magnetite nanoparticles", J.Mater.Sci.- Mater. Electron., vol. 32, pp. 14557-14568, 2021.
2020
s. Hafez, R., and S. El-Khiyami, "Effect of Copper (II) nitrate 3H2O on the Crystalline, Optical and Electrical Properties of Poly(vinyl alcohol) Films", J. Polym. Res. , vol. 27, pp. 26, 2020.
2018
Mostafa, M. F., S. S. El-Khiyami, and S. K. Alal, "Structure, thermal, and impedance study of a new organic-inorganic hybrid [(CH2)7(NH3)2]CoCl4", Journal of physics and chemistry of solids , vol. 118, pp. 6-13, 2018. c7cocl_2018.pdf
2017
, "Crystal structure, phase transition and conductivity study of two new organic - inorganic hybrids: [(CH2)7(NH3)2]X2, X = Cl/Br", Journal of Molecular Structure, vol. 1127, pp. 59-73, 2017. 2017.pdf
Mostafa, M. F., S. S. Elkhiyami, and S. A. Alal, "Discontinuous transition from insulator to semiconductor induced by phase change of the new organic- inorganic hybrid [(CH2)7(NH3)2] CoBr4", Materials Chemistry and Physics, vol. 199, pp. 454-463, 2017.
2014
El-khiyami, S. S., and M. F. Mostafa, "Crystal structure and electric properties of the organic–inorganic hybrid: [(CH2)6(NH3)2]ZnCl4", Journal of Solid State Chemistry , vol. 209, pp. 82–88, 2014.
Mostafa, M. F., and S. S. El-khiyami, "Crystal structure and electric properties of the organic–inorganic hybrid: [(CH2)6(NH3)2]ZnCl4", Journal of Solid State Chemistry, vol. 209, pp. 82–88, 2014.
2007
Mostafa, M. F., S. S. KHIYAMI, and A. A. A. YOUSSEF, "Transport properties in non-oxide perovskite", Philosophical Magazine, vol. 87, pp. 3449-3466 , 2007.
Mostafa, M. F., S. S. KHIYAMI, and A. A. A. YOUSSEF, "Transport properties in non-oxide perovskite", Philosophical Magazine, vol. 87, pp. 3449-3466 , 2007.
2005
Mostafa, M. F., A. A. A. Youssef, S. S. Khyami, and S. S. Montasser, "The Frequency Dependence of the Conductivity and Dielectric Relaxation of [(CH2)3(NH3)2]Cu(II)Cl4", Z. Naturforsch, vol. 60a, pp. 837 – 848 , 2005.
Mostafa, M. F., A. A. Youssef, and S. S. Khaimy, "Possibility of a New Ferroelectric Relaxor in the Layered Magnetic Insulator [(CH2)3(NH3)2Cu1 – xCdxCl4], x = 0, 0.3, 0.6, and 1", Z. Naturforsch, vol. 60a, pp. 507-511 , 2005.
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