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

Publication Type

Journal Article

Authors

Park, J.-H., E. Vescovo, H.-J. Kim, C. Kwon, Ramamoorthy Ramesh, T. Venkatesan

DOI

10.1103/PhysRevLett.81.1953

Abstract

The surface-boundary magnetization (MSB) for a manganese perovskite La0.7Sr0.3MnO3 has been investigated using spin-resolved photoemission spectroscopy, which has an ∼5Å probing depth. MSB shows the full moment at very low temperature but decays much faster than the bulk magnetization (MB) 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. © 1998 The American Physical Society.

Journal

Physical Review Letters

Volume

Year of Publication

1998

ISSN

00319007

Notes

cited By 424

Research Areas

Ramesh Lab