ANOMALOUS MAGNETOTRANSPORT PROPERTIES OF PR1-XCAXMNO3

被引：230

作者：

TOMIOKA, Y ^{[1
]}

ASAMITSU, A ^{[1
]}

MORITOMO, Y ^{[1
]}

TOKURA, Y ^{[1
]}

机构：

[1] UNIV TOKYO, DEPT APPL PHYS, TOKYO 113, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 10期

关键词：

METAL-INSULATOR TRANSITION; MAGNETORESISTANCE; DOUBLE EXCHANGE INTERACTION; ANTIFERROMAGNETIC STATE; PHASE TRANSITION;

D O I：

10.1143/JPSJ.64.3626

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetotransport properties were investigated for a crystal of perovskite-type manganese oxide, Pr1-xCaxMnO3 (x=0.3). The single-crystal compound is insulating and below 220 K shows the charge-ordering of Mn3+ and Mn4+ species. Application of a magnetic field (> 20 kOe) changes a canted antiferromagnetic insulating state into a ferromagnetic metallic state accompanied by change of resistivity by several orders of magnitude. At low temperatures, e.g., < 50 K, the hysteresis of the transition field is pronounced and the field-induced insulator-to-metal transition becomes irreversible.

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页码：3626 / 3630

页数：5

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