Magnetic and Mossbauer study of Mg0.9Mn0.1CrxFe2-xO4 ferrites

被引：2
|
作者：
Elzain, M. [1 ]
Widatallah, H. [1 ]
Gismelseed, A. [1 ]
Bouziane, K. [1 ]
Yousif, A. [1 ]
Al Rawas, A. [1 ]
Al-Omari, I. [1 ]
Sellai, A. [1 ]
机构：
[1] Sultan Qaboos Univ, Coll Sci, Dept Phys, Al Khoud 123, Oman
来源：
HYPERFINE INTERACTIONS | 2006年 / 168卷 / 1-3期
关键词：
Mossbauer spectroscopy; Neel temperature; ferrites; magnetization;
D O I：
10.1007/s10751-006-9415-1
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：
The ferrites Mg0.9Mn0.1Cr (x) Fe2-x O-4 (0 <= x <= 0.9) were prepared using the conventional double sintering method. The XRD showed that the samples maintain a single spinel cubic phase. The Mossbauer measurements were carried out at room and liquid nitrogen temperatures. From the area ratios of the A and B sites, it was found that the Fe cation population of the A and B sites decreases in proportion to Cr concentration. The contact hyperfine fields at the A and B sites were found to decrease with increasing Cr contents. This was found to be in approximate agreement with the results of magnetization measurement. The distributions of Mg and Mn cations versus Cr concentration were also determined using the Mossbauer and magnetization results. The Curie temperatures were determined and found to agree with the reported values. As the Cr contents increases the relative magnetization, was found to increase at low temperatures and decreases at higher temperatures.
引用
收藏
页码：1151 / 1157
页数：7
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