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Dive into the research topics where M. Abou Zied is active.

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Featured researches published by M. Abou Zied.


Applied Surface Science | 2000

Effects of copper content and heat treatment on the electrical properties of Ge15Te85-xCux thin films

M. Dongol; M. Abou Zied; G. A. Gamal; A El-Denglawey

Abstract The mechanism of incorporation of copper in amorphous films of Ge15Te85−x Cux (0≤x≤7 at.%) system and the effect of heat treatment are studied by measuring the dc conductivity in the temperature range (150–423 K). The results indicates that there are two conduction mechanisms. For temperature above 330 K, conductivity exhibits activated behaviour, while in low temperature range (T=150–300 K) conductivity exhibits non-activated behaviour. In the high temperature region, resistance and the activation energy have been calculated. The decrease in the activation energy on addition of Cu has been interpreted according to the Kastner model. In the low temperature region Motts parameters have been evaluated and they are decreased with Cu content; the results in this region are interpreted following Motts model.


Chinese Physics Letters | 2005

Electronic Properties of Red P-Type Tl2S5 Single Crystals

G. A. Gamal; M. Abou Zied; A.A. Ebnalwaled

Single crystals of red Tl2S5 were prepared by a special modified vertical Bridgman and Stockbarger technique. This growth was performed in our laboratory. The influences of temperature on the electrical conductivity, Hall mobility, carrier concentration, and thermoelectric power (TEP) were carried out in the temperature range 277–413 K. Throughout these measurements, various physical parameters such as effective mass of charge carriers, carrier mobility, diffusion coefficient, and the relaxation time for both majority and minority carriers were found.


Journal of Nano Research | 2010

Microstructure and Mechanical Properties of Nano-Crystalline Al-Mg-Mn System

A.A. Ebnalwaled; M. Abou Zied

Nano - crystalline Al-Mg-Mn was synthesized by ball milling technique. Microstructure of these alloys has been studied from X-ray line broadening. The crystallite size of nano - crystalline Al-Mg-Mn system decreases by increasing the Mg content, While the micro-strain, median diameter,, and geometrical standard deviations,  increases by increasing the Mg content. Micro-hardness of our system has been investigated by Vickers hardness test. The hardness increases by increasing the Mg content.


Physica B-condensed Matter | 2004

The effects of composition and heat treatment on the structural and optical properties of Ge15Te85−xCux thin films

M. Dongol; M. Abou Zied; G. A. Gamal; A. EI-Denglawey


Journal of Alloys and Compounds | 2007

Growth and anisotropy of transport properties of detached Cd0.78Zn0.22Te crystals

G. A. Gamal; M. Abou Zied; A.A. Ebnalwaled


Intermetallics | 2008

Microstructure and hardness dependence of the pressure of nano-crystalline aluminum

M. Abou Zied; A.A. Ebnalwaled


Physica B-condensed Matter | 2007

Mobility improvement by detached solidification of CZT crystals

G. A. Gamal; M. Abou Zied; A.A. Ebnalwaled


Physica B-condensed Matter | 2007

Transport properties of Cd0.8Zn0.2Te crystals

G. A. Gamal; M. Abou Zied; A.A. Ebnalwaled


Advanced materials and technologies | 2014

Microstructure and Hardness Dependence of the Pressure of Nano - Crystalline Aluminum Alloys

M. Abou Zied; A.A. Ebnalwaled


Physica B-condensed Matter | 2007

Transport properties of Cd 0.8Zn 0.2Te crystals

G. A. Gamal; M. Abou Zied; A.A. Ebnalwaled

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G. A. Gamal

South Valley University

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M. Dongol

South Valley University

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