COLLAPSE OF A CHARGE-ORDERED STATE UNDER A MAGNETIC-FIELD IN PR1/2SR1/2MNO3

被引：745

作者：

TOMIOKA, Y ^{[1
]}

ASAMITSU, A ^{[1
]}

MORITOMO, Y ^{[1
]}

KUWAHARA, H ^{[1
]}

TOKURA, Y ^{[1
]}

机构：

[1] UNIV TOKYO, DEPT PHYS, BUNKYO KU, TOKYO 113, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.74.5108

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The perovskite-type manganese oxide, Pr1-xSrxMnO3 (x=0.5), shows a first-order phase transition from a ferromagnetic (FM) metal to antiferromagnetic (AFM) nonmetal at 140 K, which accompanies the transition to the charge-ordered state (generalized Wigner lattice). The nonmetal-to-metal transition temperature can be decreased down to near 0 K with a magnetic field up to 70 kOe. The temperature-field phase diagram for the charge-ordered state is presented together with a discussion on the mechanism of this field-induced phase transition. © 1995 The American Physical Society.

引用

页码：5108 / 5111

页数：4

共 25 条

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