Ferromagnetic-antiferromagnetic transition in tetragonal La0.50Sr0.50MnO3

被引：33

作者：

Jirák, Z

Hejtmánek, J

Knízek, K

Marysko, M

Síma, V

Sonntag, R

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 16253 6, Czech Republic

[2] Hahn Meitner Inst Kernforsch Berlin GmbH, D-14109 Berlin, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 217卷 / 1-3期

关键词：

manganites; perovskite structure; magnetic properties; neutron diffraction; magnetoresistance;

D O I：

10.1016/S0304-8853(00)00326-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tetragonal modification of the ferromagnetic perovskite La0.50Sr0.50MnO3 with T-C = 310K has been investigated by neutron powder diffraction and by magnetic and transport measurements. The compound was found to be isostructural with the recently reported phase Pr0.50Sr0.50MnO3, space group 14/mcm. At low temperatures, it shows a structural transition which is accompanied with onset of the A-type antiferromagnetism. Ceramic material based on La0.50Sr0.50MnO3 exhibits good conductivity down to the lowest temperatures and shows appreciable magnetoresistive effects which are characteristic for granular perovskites, (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：113 / 119

页数：7

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