Structural instability vs. bandwidth-controlled charge ordering in x=1/2 manganites

被引：3

作者：

Llobet, A

Ritter, C

Frontera, C

Obradors, X

García-Muñoz, JL

Alonso, JA

机构：

[1] CNRS, Lab Louis Neel, F-38042 Grenoble 9, France

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[3] CSIC, Inst Ciencia Mat Barcelona, E-08193 Bellaterra, Catalunya, Spain

[4] CSIC, Inst Ciencia Mat Madrid, E-28003 Madrid, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 196卷

关键词：

structural instability; bandwidth; neutron diffraction;

D O I：

10.1016/S0304-8853(98)00889-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on high-resolution neutron diffraction data, the metal-insulator transition of Pr1/2Sr1/2MnO3 at 150 K is shown to be due to a temperature-driven structural instability (I4/mmm --> P2(1)/n) as temperature decreases. The allowed breathing-type distortions do not stabilize a charge ordered state in the A-type magnetic configuration observed in the P2(1)/n phase. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：549 / 551

页数：3

共 5 条

[1] The manganite Nd0.5Sr0.5MnO3: A rare distortion of the perovskite [J].