Fabrication of (La0.8Sr0.2)MnO3/(La1-xSrx)CrO3 spin frustrated superlattices and their electrical magnetic properties

被引：2

作者：

Kanki, T ^{[1
]}

Tanaka, H ^{[1
]}

Kawai, T ^{[1
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2000年 / 39卷 / 5B期

关键词：

perovskite; oxides; magnetoresistance; epitaxy;

D O I：

10.1143/JJAP.39.L460

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated ferromagmetic [La0.8Sr0.2MnO3 (LSMO), T-C = 270 K]/antiferromagnetic [La0.8Sr0.2CrO3 (LSCO), T-N = 270K] spin-frustrated superlattices on SrTiO3 (001) substrates by the laser molecular-beam epitaxy technique. [(LSMO)(5) (unit cell)/(LSCO)(1) (unit cell)] superlattices exhibit a magnetoresistance ratio of 23%, higher than that of LSMO single-phase film (18%) at 8000 Oe. In addition, [(LSMO)(5)/(LaCrO3)(1)] superlattices exhibited a magnetoresistive property superior to LSMO/LSCO superlattices within a magnetic field of 50 (0) over bar0 Oe. This enhancement of magnetoresistance can be explained by the spin-frustrative effect between a ferromagnetic layer and an antiferromagnetic layer.

引用

页码：L460 / L462

页数：3