Two-dimensional anisotropy in a layered metallic antiferromagnet RE1-xSrxMnO3 with x∼1/2

被引：17

作者：

Kawano, H

Kajimoto, R

Yoshizawa, H

Fernandez-Baca, JA

Tomioka, Y

Kuwahara, H

Tokura, Y

机构：

[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 35101, Japan

[2] Univ Tokyo, ISSP, Neutron Scattering Lab, Tokai, Ibaraki 31911, Japan

[3] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

[4] JRCAT, Tsukuba, Ibaraki 305, Japan

[5] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 113, Japan

来源：

PHYSICA B-CONDENSED MATTER | 1997年 / 241卷

关键词：

metal-insulator transition; charge ordering; Mott insulator;

D O I：

10.1016/S0921-4526(97)00569-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Some RE1-xSrxMnO3 (RE = Nd, Pr) systems with x similar to 1/2 exhibit an A-type antiferromagnetic (AFM) structure instead of the expected CE-type magnetic structure. This can be understood as being a consequence of the increase of the bandwidth (W). These A-type magnetic systems also show salient features in their crystal structures. We propose a two-dimensional anisotropy of the transport as well as the magnetic properties for the A-type AFM I structure and we shaw that we have, indeed, observed anisotropic spin wave dispersion relations by inelastic neutron measurements. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：289 / 294

页数：6

共 24 条

[1] RELATIONSHIP BETWEEN CRYSTAL SYMMETRY AND MAGNETIC PROPERTIES OF IONIC COMPOUNDS CONTAINING MN3 [J].