Positive giant magnetoresistance in a Fe3O4/SrTiO3/La0.7Sr0.3MnO3 heterostructure

被引：111

作者：

Ghosh, K ^{[1
]}

Ogale, SB

Pai, SP

Robson, M

Li, E

Jin, I

Dong, ZW

Greene, RL

Ramesh, R

Venkatesan, T

Johnson, M

机构：

[1] Univ Maryland, NSF, MRSEC, College Pk, MD 20742 USA

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

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 05期

关键词：

D O I：

10.1063/1.121949

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A very large positive magnetoresistance (MR) has been discovered in a Fe3O4/SrTiO3/La0.7Sr0.3MnO3 heterostructure for the transport perpendicular to the layer planes and applied magnetic field in the film plane. The observed MR features do not show any obvious correlation with the hysteresis behavior of the ferromagnetic bilayers. A possible explanation of these results is given in terms of the relative differences in the majority and minority spin bands of the two ferromagnetic layers and the field induced modifications of domain structures therein. (C) 1998 American Institute of Physics. [S0003-6951(98)02031-2].

引用

页码：689 / 691

页数：3

共 18 条

[1] Spin-polarized intergrain tunneling in La-2/Sr-3(1)/3MnO3 [J].