Electrical and magnetic properties of La1-xBixMnO3

被引：29

作者：

Ogawa, T

Sandhu, A

Chiba, M

Takeuchi, H

Koizumi, Y

机构：

[1] Tokai Univ, Grad Sch Engn, Hiratsuka, Kanagawa 2591292, Japan

[2] Japan Tokyo Inst Technol, RCQEE, Meguro Ku, Tokyo 1528522, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 290卷

关键词：

perovskite-type La1-xBixMnO3; Jahn-Teller effect; colossal magnetoresistance (CMR);

D O I：

10.1016/j.jmmm.2004.11.293

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The perovskite-type crystals La1-xBixMnO3 (LBMO), which are prepared by substituting Bi atoms for some of the La atoms in the crystal LaMnO3, exhibit colossal magnetoresistance (CMR). From X-ray diffraction measurements, we found that Jahn-Teller distortion existed in the LBMO crystal structure, which formed of orthorhombic (or rhombohedral)-type structures with lattice parameter gamma (= c/a) = 1.02 in the range 0 < x < 0.3, pseudo-cubic ones with gamma = 1.005 for 0.3 < x < 0.5, and tetragonal ones with gamma = 1.014 for 0.5 < x. The CMR effect for LBMO with x = 0.2 was about 400% at 88 K. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：933 / 936

页数：4

共 5 条

[1] Interplay between orbital, charge and magnetic orderings in R1-xAxMnO3 (x=0, 0.5) [J].