Co-doped La0.5Sr0.5TiO3-δ:: Diluted magnetic oxide system with high Curie temperature

被引：57

作者：

Zhao, YG ^{[1
]}

Shinde, SR

Ogale, SB

Higgins, J

Choudhary, RJ

Kulkarni, VN

Greene, RL

Venkatesan, T

Lofland, SE

Lanci, C

Buban, JP

Browning, ND

Das Sarma, S

Millis, AJ

机构：

[1] Univ Maryland, Dept Phys, Ctr Superconduct Res, College Pk, MD 20742 USA

[2] Rowan Univ, Dept Chem & Phys, Glassboro, NJ 08028 USA

[3] Univ Illinois, Dept Phys, Chicago, IL 60607 USA

[4] Univ Maryland, Dept Phys, Condensed Matter Theory Ctr, College Pk, MD 20742 USA

[5] Columbia Univ, Dept Phys, New York, NY 10027 USA

[6] Univ Maryland, Dept Mat Sci & Nucl Engn, College Pk, MD 20742 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 11期

关键词：

D O I：

10.1063/1.1610796

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ferromagnetism is observed at and above room temperature in pulsed laser deposited epitaxial films of Co-doped Ti-based oxide perovskite (La0.5Sr0.5TiO3-delta). The system has the characteristics of an intrinsic diluted magnetic semiconductor (metal) at low concentrations (<similar to2%), but develops inhomogeneity at higher cobalt concentrations. The films range from being opaque metallic to transparent semiconducting depending on the oxygen pressure during growth and are yet ferromagnetic. (C) 2003 American Institute of Physics.

引用

页码：2199 / 2201

页数：3

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