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, Charles M Falco

Research output: Contribution to journalArticle

21 Citations (Scopus)

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 ∼2 Å 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 1.53 μB 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)
Article number054416
Pages (from-to)544161-544166
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number5
StatePublished - Feb 2004

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wedges
Orbits
moments
orbitals
Magnetic moments
orbits
Surface roughness
roughness
magnetic moments
electronics
gallium arsenide

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Ryan, P., Winarski, R. P., Keavney, D. J., Freeland, J. W., Rosenberg, R. A., Park, S., & Falco, C. M. (2004). Enhanced magnetic orbital moment of ultrathin Co films on Ge(100). Physical Review B - Condensed Matter and Materials Physics, 69(5), 544161-544166. [054416].

Enhanced magnetic orbital moment of ultrathin Co films on Ge(100). / Ryan, P.; Winarski, R. P.; Keavney, D. J.; Freeland, J. W.; Rosenberg, R. A.; Park, S.; Falco, Charles M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 69, No. 5, 054416, 02.2004, p. 544161-544166.

Research output: Contribution to journalArticle

Ryan, P, Winarski, RP, Keavney, DJ, Freeland, JW, Rosenberg, RA, Park, S & Falco, CM 2004, 'Enhanced magnetic orbital moment of ultrathin Co films on Ge(100)', Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 5, 054416, pp. 544161-544166.
Ryan P, Winarski RP, Keavney DJ, Freeland JW, Rosenberg RA, Park S et al. Enhanced magnetic orbital moment of ultrathin Co films on Ge(100). Physical Review B - Condensed Matter and Materials Physics. 2004 Feb;69(5):544161-544166. 054416.
Ryan, P. ; Winarski, R. P. ; Keavney, D. J. ; Freeland, J. W. ; Rosenberg, R. A. ; Park, S. ; Falco, Charles M. / Enhanced magnetic orbital moment of ultrathin Co films on Ge(100). In: Physical Review B - Condensed Matter and Materials Physics. 2004 ; Vol. 69, No. 5. pp. 544161-544166.
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