Magnetic anisotropy and transport properties of epitaxially grown MnAs/ GaAs digital alloys

J. H. Song*, Y. Cui, J. J. Lee, Yunki Kim, J. B. Ketterson, Sunglae Cho

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The superlattice thin films consisting of metallic ferromagnet MnAs and semiconducting GaAs were observed for an enhancement of both T c, magnetic anisotropy and the electric transport properties. The fact that the MnAs layer is hexagonal rather than zinc blends was indicated by the structural analysis. The highest T c and the largest magnetic anisotropy was shown by MnAs(5 nm)/GaAs(5 nm) superlattice. The temperature-dependent resistance of the sample exhibited magnetoresistance and semiconductor-like behavior was suggestive of an interplay between the charge carriers and the localized magnetic ions.

Original languageEnglish (US)
Pages (from-to)7288-7290
Number of pages3
JournalJournal of Applied Physics
Volume95
Issue number11 II
DOIs
StatePublished - Jun 1 2004

ASJC Scopus subject areas

  • General Physics and Astronomy

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