Enhanced magnetic orbital moment of ultrathin Co films on Ge(100)

P. Ryan, R. P. Winarski, D. J. Keavney, J. W. Freeland, R. A. Rosenberg, S. Park, C. M. Falco

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Electronic and magnetic studies of Co films grown on Ge(100) are presented using two sample systems; incremental in situ Co depositions and a pre-made Co wedge structure. Both a magnetically inactive region and a corresponding Co-Ge intermixed region form at the interface of both systems. The Co grows in a uniform manner beyond this Co-Ge region with ∼2Å perpendicular roughness. At low coverage of the in situ grown system, the Co exhibited an enhanced orbit to spin moment ratio, while, at higher Co coverages, we measured a total magnetic moment of 1.53μB in agreement with previously published results of bcc Co grown on GaAs. The Co wedge indicated a constant but larger orbit-spin ratio along the wedge possibly due to the presence of an overlayer.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number5
DOIs
StatePublished - Feb 20 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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