Magnetic and electrical-transport property variations of epitaxially grown MnAs thin films

J. H. Song, J. J. Lee, Y. Cui, J. B. Ketterson

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We have studied the magnetic and electrical-transport property variations of epitaxial MnAs thin films grown on Si(001) and GaAs(001) substrates by molecular beam epitaxy as a function of the growth temperature and film thickness. All samples show a ferromagnetic behavior with the exception of MnAsSi (001) deposited at low growth temperatures. Interestingly, the electrical-transport properties change from metallic to semiconducting on decreasing the total thickness from 300 to 20 nm for MnAsGaAs (001) samples. These results indicate a radical change of the electronic structure of the MnAs layer.

Original languageEnglish (US)
Article number10M107
JournalJournal of Applied Physics
Volume97
Issue number10
DOIs
StatePublished - May 15 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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