GIANT MAGNETORESISTANCE EFFECTS IN UNIGA

被引：53

作者：

SECHOVSKY, V

HAVELA, L

JIRMAN, L

YE, W

TAKABATAKE, T

FUJII, H

BRUCK, E

DEBOER, FR

NAKOTTE, H

机构：

[1] HIROSHIMA UNIV, FAC INTEGRATED ARTS & SCI, HIROSHIMA 730, JAPAN

[2] UNIV AMSTERDAM, NAT LAB, 1018 XE AMSTERDAM, NETHERLANDS

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 10期

关键词：

D O I：

10.1063/1.350163

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic transitions in UNiGa were found to cause pronounced anomalies in temperature and magnetic-field dependencies of the electrical resistivity. The resistivity values are drastically reduced by the field induced transition from an antiferromagnetic to a ferromagnetic phase. The giant magnetoresistance (as large as DELTA-rho/rho = -87% at T = 1.2 K for i parallel-to c) observed in UNiGa is typical for materials characterized by a strong coupling of conduction electrons with highly correlated f electrons. The observed anisotropy of transport properties is closely connected with the strong uniaxial magnetic anisotropy of this compound.

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页码：5794 / 5799

页数：6

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