Abdou Kamal Diab

استاذ مساعد - استاذ مساعد بقسم الفيزياء

كلية العلوم

العنوان: جامعة سوهاج - كلية العلوم بسوهاج - قسم الفيزياء



المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Electrical resistivity

2018-10-20 16:57:28 الكلمات المفتاحية Colossal magnetoresistance;, Electrical resistivity, DC magnetization, A M Ahmed*, H F Mohamed, A K D,
Enhanced electro-magnetic properties in La0.7Sr0.3MnO3/ZrO2 composites
(La0.7 Sr0.3MnO3)1-x/(ZrO2)x (x=0.0–0.150, step 0.025) composites have been prepared via solid state reaction process. The X-ray diffraction and scanning electron microscopic observations indicate that there are ZrO2grains separated from La0.7Sr0.3MnO3matrix. It has been found that the inclusion of ZrO2content decreases the conductivity, magnetization and metal–semiconductor transition, whereas it increases the low field magnetoresistance. Possible effects of grain boundaries on the ... إقراء المزيد

2018-09-02 21:58:37 الكلمات المفتاحية Sintering, Electrical resistivity, Thin films, V2O5,
Sintering process and annealing effect on some physical properties of V2O5 thin films
Thin films of vanadium pentoxide (V2O5) on glass substrates were produced by e-beam evaporation technique. The effect of sintering process and annealing temperature on the morphology and optoelectronic properties of these films were studied. The obtained results from scan electron microscope show that, the grain size of V2O5 films increases with increasing both the temperature of sintering and annealing temperature. ... إقراء المزيد

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