Magnetic properties at surface boundary of a half-metallic ferromagnet La0.7Sr0.3MnO3

被引：440

作者：

Park, JH ^{[1
]}

Vescovo, E

Kim, HJ

Kwon, C

Ramesh, R

Venkatesan, T

机构：

[1] Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA

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

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.81.1953

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The surface-boundary magnetization (M-SB) for a manganese perovskite La0.7Sr0.3MnO3 has been investigated using spin-resolved photoemission spectroscopy, which has an similar to 5 Angstrom probing depth. M-SB shows the full moment at very low temperature but decays much faster than the bulk magnetization (M-B) upon heating. This result provides direct insight into various novel properties at grain and surface boundaries observed in the polycrystalline samples and junctions of manganese perovskites.

引用

页码：1953 / 1956

页数：4

共 26 条

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