EFFECT OF CR SUBSTITUTION ON THE MAGNETIC-PROPERTIES OF SMMN2GE2

被引：10
作者：
ALI, N
SAHA, S
机构：
[1] Department of Physics, Southern Illinois University at Carbondale, Carbondale
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 227卷 / 01期
关键词：
REENTRANT FERROMAGNETISM; MAGNETIC PHASE DIAGRAMS; THERMAL EXPANSION;
D O I：
10.1016/0925-8388(95)80030-1
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The magnetic properties of polycrystalline SmMn2Ge2 and Sm(Mn1-xCrx)(2)Ge-2 have been investigated using magnetization, electrical resistance and thermal expansion measurements. A magnetic phase diagram for Sm(MN(1-x)Cr(x))(2)Ge2 has been established. It is found that the antiferromagnetic phase in SmMn2Ge2 disappears for Cr concentrations of less than 5 at.% when Mn is partially substituted by cr. It is found that there are two ferromagnetic (FM) phases in Sm(Mna-xCrx)(2)Ge-2. The high temperature FMI phase is due to Mn moment ordering while the lower temperature FMII phase is due to Mn as well as Sm moment ordering.
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页码：49 / 52
页数：4
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