Phase separation versus spin glass behavior in La0.85Sr0.15CoO3

被引：7

作者：

Samal, D. ^{[1
]}

Balamurugan, K. ^{[2
]}

Shivakumara, C. ^{[3
]}

Kumar, P. S. Anil ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

[2] Indian Inst Technol, Dept Phys, Madras 600036, Tamil Nadu, India

[3] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 07期

关键词：

ELECTRONIC-STRUCTURE; MAGNETIC-PROPERTIES; CLUSTER-GLASS; LACOO3;

D O I：

10.1063/1.3073939

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present comprehensive studies of dc magnetization, ac susceptibility, and magnetotransport of two sets of La0.85Sr0.15CoO3 samples, one exhibits phase separation and the other exhibits spin glass behavior. Our study reveals that the phase separation in La0.85Sr0.15CoO3 is neither inherent nor ubiquitous; rather, it is a consequence of preparation condition. It is realized that the low temperature annealed sample exhibits phase separation while the high temperature annealed one shows the characteristic of spin glass behavior. This study shows that the most probable magnetic state of La0.85Sr0.15CoO3 is spin glass. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3073939]

引用

页数：3

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