Crystal structure and magnetic property of La2MnRuO6 phase

被引：13

作者：

Kamegashira, N

Mori, T

Imamura, A

Hinatsu, Y

机构：

[1] Toyohashi Univ Technol, Dept Mat Sci, Toyohashi, Aichi 4418580, Japan

[2] Hokkaido Univ, Grad Sch Sci, Div Chem, Sapporo, Hokkaido 0600810, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 302卷 / 1-2期

关键词：

spin glasses; chemical synthesis; crystal structure and symmetry; X-ray diffraction; magnetization; magnetic measurements;

D O I：

10.1016/S0925-8388(00)00584-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A perovskite compound La2MnRuO6 was synthesized and the detailed crystal structure has been determined by Rietveld analysis of powder X-ray diffraction data. The nonstoichiometric range of La2MnRuO6+x phase was determined from x=-0.015 to +0.152. The lattice constants with the orthorhombic space group Pnma (No 62) decrease with increase of oxygen nonstoichiometry from a=0.56921(8), b=0.78354(3) and c=0.55513(7) nm near stoichiometric composition to a=0.55594(2), b=0.78309(3) and c= 0.55484(2) MI for hyperstoichiometric composition. The oxygen octahedron is almost regular and tilts each other in zigzag way by several degrees. The magnetic measurements of this phase showed a spin glass like behavior with a characteristic peak phenomenon below 100 K in the susceptibility-temperature curve (chi-T) at low temperature. (C) 2000 Published by Elsevier Science S.A. All rights reserved.

引用

页码：L6 / L11

页数：6

共 15 条

[1] SYNTHESES, LATTICE-CONSTANTS, MAGNETIC-PROPERTIES AND ELECTRICAL CONDUCTIVITIES OF PEROVSKITE TYPE SOLID-SOLUTIONS LA0.75EA0.25MN(1-X)ZXO3-EA=CA,SR,BA-Z=RU,TI [J].