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.

引用

页码：49 / 52

页数：4

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