Magnetic properties of Au/Co/Au films grown on vicinal Si(111) substrates

Sukmock Lee, Sungkyun Park, Charles M. Falco

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

In this paper, we compare the magnetic properties of Au/Co/Au thin films grown by molecular bern epitaxy (MBE) on 4°-miscut Si(111) with those of Au/Co/Au thin films grown by MBE on non-miscut Si(111). The hysteresis curves measured using the magneto-optic Kerr effect showed strong perpendicular magnetic anisotropies (PMA) for both films. However, the spin wave frequencies measured using Brillouin light scattering showed that only those on non-miscut Si had a PMA, with those on 4°-miscut Si revealing the unusual spin wave frequency behavior. We speculate that Co deposited on 4°-miscut Si(111) has multiple domains, one domain having PMA and the others without PMA, which could be due to the high step density of vicinal Si(111) substrates.

Original languageEnglish (US)
Pages (from-to)913-917
Number of pages5
JournalJournal of the Korean Physical Society
Volume40
Issue number5
StatePublished - May 1 2002

Keywords

  • Brillouin scattering
  • Co
  • Magneto-optic Kerr effect

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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