TY - JOUR
T1 - Cation distribution and magnetic properties of nickel-chromium ferrites NiCrxFe2-xO4 (0 ≤ x ≤ 1.4)
AU - Rais, A.
AU - Gismelseed, A. M.
AU - Al-Omari, I. A.
PY - 2005/6
Y1 - 2005/6
N2 - Nickel-chromium ferrites NiCrxFe2-xO4 (0 ≤ x ≤ 1.4) 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 = 0.9, 1.2 and 1.4. 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.
AB - Nickel-chromium ferrites NiCrxFe2-xO4 (0 ≤ x ≤ 1.4) 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 = 0.9, 1.2 and 1.4. 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.
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U2 - 10.1002/pssb.200440022
DO - 10.1002/pssb.200440022
M3 - Article
AN - SCOPUS:20444469731
VL - 242
SP - 1497
EP - 1503
JO - Physica Status Solidi (B) Basic Research
JF - Physica Status Solidi (B) Basic Research
SN - 0370-1972
IS - 7
ER -