Tunable magnetic anisotropy of ultrathin Co layers

S. Park, X. Zhang, A. Misra, J. D. Thompson, M. R. Fitzsimmons, S. Lee, C. M. Falco

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We prepared multilayers, consisting of an epitaxial Au/Co/Au/Cu(111) architecture on Si(111) substrates, to understand the magnetic anisotropy of an ultrathin Co layer in relation to its structure. The room-temperature magnetization of an 8-monolayer (ML)-thick Co layer is predominately either in-plane or out-of-plane depending upon the thickness of the Au underlayer. Specifically, for a Co film grown on a 2-ML-thick Au, the Co film has a distorted fee structure and in-plane magnetic anisotropy. For a Co film grown on a 6-ML-thick Au, the Co film has a distorted hcp structure and out-of-plane magnetic anisotropy.

Original languageEnglish (US)
Article number042504
Pages (from-to)042504-1-042504-3
JournalApplied Physics Letters
Issue number4
StatePublished - 2005

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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