Thermal expansion of La1-xSrxCrO3-δ

被引：32

作者：

Hayashi, H

Watanabe, M

Ohuchida, M

Inaba, H

Hiei, Y

Yamamoto, T

Mori, M

机构：

[1] Chiba Univ, Dept Sci Educ, Fac Educ, Inage Ku, Chiba 2638522, Japan

[2] Cent Res Inst Elect Power Ind, Yokosuka, Kanagawa 2400196, Japan

来源：

SOLID STATE IONICS | 2001年 / 144卷 / 3-4期

关键词：

thermal expansion coefficient; lanthanum chromite; phase transition; doping effect; oxygen nonstoichiometry;

D O I：

10.1016/S0167-2738(01)00986-9

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：

Thermal expansion coefficients of La1-xSrxCrO3 and reduced La1-xSrxCrO3-delta were measured using a push-rod type dilatometer in the temperature range from 100 to 873 K. The thermal expansion coefficient increased and the temperature of structural transition from orthorhombic to rhombohedral decreased with the increase of Sr content. Magnetic transition temperature decreased with the decrease of Cr3+ content in La1-xSrCrO3-delta. The doping effect of Sr in La1-xSrxCrO3 on the thermal expansion was discussed using molecular dynamics simulation. (C) 2001 Published by Elsevier Science B.V.

引用

页码：301 / 313

页数：13