ملخص
Lithium-chromium ferrites Li0.5Fe2.5-xCr xO4 (0 ≤ x ≤ 1.55) were studied using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy. X-ray diffraction patterns show that all samples have cubic spinel structure. The temperature dependent magnetic measurements revealed that a magnetic compensation point appears at chromium concentration x = 1.05, 1.25 and 1.55. Moreover, it was observed that the Curie temperature TC decreases and approaches the compensation temperature TK as Cr3+ substitution for Fe3+ increases. The magnetization data at all concentrations are discussed in the light of Néel's molecular field model taking into account the cation distributions obtained using the analysis of Mössbauer spectra.
اللغة الأصلية | English |
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الصفحات (من إلى) | 2949-2955 |
عدد الصفحات | 7 |
دورية | Physica Status Solidi (B) Basic Research |
مستوى الصوت | 242 |
رقم الإصدار | 14 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - نوفمبر 2005 |
ASJC Scopus subject areas
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