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Register a new userStudying the cation distribution in the Co0.6Zn0.4 –ferrite using ESR
دراسة توزع الأيونات الموجبة في الفرايت Co0.6Zn0.4Fe2O4 باستخدام ESR
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Tishreen University ورقة بحثية
Publication date
2014
fields
Physics
and research's language is
العربية
Authors
بدر الأعرج( باحث )
Created by
Shamra Editor
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تم في هذا العمل تسجيل إشارة التجاوب الإلكتروني السبيني ESR للفرايت Co0.6Zn0.4- عند درجة حرارة الغرفة. و حددت قيمة العزم المغناطيسي التجريبية بوساطة حساب الشدة التكاملية لهذه الإشارة و موضع القمة العظمى، و طبقت بعض العلاقات النظرية لتحديد قيم العزم المغناطيسي للفرايت المدروس. بعد ذلك،حدد توزع الأيونات الموجبة بين المواقع الرباعية و المواقع الثمانية في بنية الفرايت من قيم العزم المغناطيسي. علاوة على ذلك، حدد زمن حياة السوية الطاقية بالقيمة 1.38×10-10 sec.
The ESR signal of the Co0.6Zn0.4Fe2O4 ferrite system was recorded at room temperature. The experimental magnetic moment value was estimated by means of integrated intensity of ESR signal and its maximum position. It has been used some theoretical relations were used to estimate the values of magnetic moment of the studied ferrite. The cation distributions between tetrahedral and octahedral sites were established from the values of magnetic moment.In addition, the lifetimeof energy level was determined.
References used
Weissmantel Ch.,Hamann C., 1981- Grundlagen der Festkoeperphysik,VFB Deutscher Verlag der Wissenschaften,Berlin-Deutschland,p.678
Hemeda O.M.,2002- electron spin resonance and cation distribution studies of the CoZnMn- ferrite system, Journal of MMM 251,50-60
Autorenkolektiv,1974- Analytikum,VFB Deutscher Verlag fuer Grund stoff industrie,Leipzig-Deutschland,p.304
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