Magnetic anomalies in SmMn2Ge2

被引：16

作者：

Mallik, R ^{[1
]}

Sampathkumaran, EV ^{[1
]}

Paulose, PL ^{[1
]}

机构：

[1] TATA INST FUNDAMENTAL RES,SOLID STATE PHYS GRP,MUMBAI 5,INDIA

来源：

PHYSICA B | 1997年 / 230卷

关键词：

SmMn2Ge2; multiple magnetic transitions; magnetoresistance;

D O I：

10.1016/S0921-4526(96)00821-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The results of electrical resistance (rho), magnetoresistance (Delta rho/rho) and magnetization (M) measurements are reported for polycrystalline SmMn2Ge2. Sharp variations in rho at 108 and 142 K attributable to well-known magnetic transitions from Mn sublattice are noted. Sign of the rho across these transitions exhibits anomalies. Delta rho/rho data indicate the existence of a hitherto unrecognized magnetic anomaly near 30 K, presumably of ferrimagnetic type as revealed by isothermal M data at low temperatures.

引用

页码：731 / 734

页数：4

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