Mohamed Abdallah Mahmoud <br/><br/>
Effect of rare earth substitution on the electric and magnetic properties of lithinum antimony ferrite /  
 تاثير احلال العناصر الارضية النادرة على الخواص الكهربية و المغناطيسية لفيرريت الليثيوم - انتيمونى 
Mohamed Abdallah Mahmoud ; Supervised M.A.Ahmed , E.A.Elfarahaty , G.Abdallatif 
 - Cairo :   Mohamed Abdallah Mahmoud ,   2007 
 - 134P. :   charts ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty Of Science - Department Of Physics 
<br/><br/> In this work a series of samples were prepared by using the ceramic technique.Analar grad form oxides (BDH) were mixed in a stoichimetric ratio according to the formula ? where 0.025 <or=x<or=0.200.Grinding using agate mortar for 2 hrs 
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<br/><br/><label>Subjects--Index Terms: </label>Electric and magnetic properties Ferrite Rare earth