Effect of Mg2+ on the magnetic compensation of lithium-chromium ferrite

被引：4

作者：

Rais, A ^{[1
]}

Yousif, AA ^{[1
]}

Gismelseed, A ^{[1
]}

Elzain, ME ^{[1
]}

Al Rawas, A ^{[1
]}

Al-Omari, IA ^{[1
]}

机构：

[1] Sultan Qaboos Univ, Dept Phys, Muscat 123, Oman

来源：

HYPERFINE INTERACTIONS | 2004年 / 156卷 / 01期

关键词：

magnetic compensation; X-ray diffraction; Mossbauer spectroscopy;

D O I：

10.1023/B:HYPE.0000043218.24309.6b

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Mg-substituted ferrite Li0.5MgxFe1.25-(2/3)xCr1.25O4 (0less than or equal toxless than or equal to0.3) was studied using X-ray diffraction, Mossbauer spectroscopy and magnetic measurements. X-ray diffraction patterns show that all samples have cubic spinel structure. The temperature-dependent magnetic measurements revealed that the compensation point T-K of Li0.5Fe1.25Cr1.25O4 starts to approach the Neel temperature T-N as Mg2+ substitution of Fe3+ increases, until the compensation disappears at x=0.3. This effect is investigated in relation to the cation distribution established using the Mossbauer study of this system.

引用

页码：229 / 234

页数：6

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