Pressure-induced re-entrant electronic and magnetic state in Pr0.7Ca0.3MnO3 manganite

被引：23

作者：

Cui, C ^{[1
]}

Tyson, TA ^{[1
]}

机构：

[1] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 14期

关键词：

D O I：

10.1063/1.1614843

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In Pr0.7Ca0.3MnO3, pressure induces re-entrant magnetic and electronic state changes in the range from 1 atm to similar to6 GPa. The metal-insulator and magnetic transition temperatures coincide from similar to1 to 5 GPa, decouple outside of this range, and do not change monotonically with pressure. The effects may be explained by pressure-tuned competition between double exchange and super exchange. The insulating state induced by pressure above similar to5 GPa is possibly ferromagnetic, different from the ferromagnetic and antiferromagnetic phase-separated insulating state below similar to0.8 GPa. (C) 2003 American Institute of Physics.

引用

页码：2856 / 2858

页数：3

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