Spin-polarized scanning tunneling microscopy on half-metallic manganite thin film with half-metallic manganite tip

被引：22

作者：

Akiyama, R ^{[1
]}

Tanaka, H ^{[1
]}

Matsumoto, T ^{[1
]}

Kawai, T ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 26期

关键词：

D O I：

10.1063/1.1375832

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spin-polarized tunneling was demonstrated on La0.7Sr0.3MnO3 epitaxial thin film with a La0.7Sr0.3MnO3-coated PtIr tip at room temperature. A magnetic-field-dependent gap structure was found in the differential tunneling spectra due to the spin-valve effect. The spatial mapping of the differential tunneling conductance shows strongly contrasting variations, which demonstrates the presence of magnetic domains with different spin alignments. (C) 2001 American Institute of Physics.

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页码：4378 / 4380

页数：3

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