Orbital-ordering-induced anomalous softening of the ferromagnetic spin waves in perovskite manganites

被引：3

作者：

Kajimoto, R

Yoshizawa, H

Kawano-Furukawa, H

Kuwahara, H

Tomioka, Y

Tokura, Y

机构：

[1] Univ Tokyo, Neutron Scattering Lab, Inst Solid State Phys, Tokai, Ibaraki 3191106, Japan

[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[3] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 3058562, Japan

[4] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷 / SUPPL. 1期

关键词：

magnetoresistance - transition metals; spin waves; neutron scattering;

D O I：

10.1016/S0304-8853(00)00639-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spin wave excitations were measured in the ferromagnetic phase of Nd1/2Sr1/2MnO3 by neutron scattering. This compound is located in proximity to the A-type antiferromagnetic state, and it shows a clear anisotropy and anomalous softening of the spin wave excitations. The softening in the ferromagnetic phase is induced by the orbital ordering. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：892 / 894

页数：3

共 5 条

[1] Orbital liquid in perovskite transition-metal oxides [J].