Ag-induced spin-reorientation transition of Co ultrathin films on Pt(111)

F. C. Chen, Y. E. Wu, C. W. Su, C. S. Shern

Research output: Contribution to journalArticle

Abstract

The surface magneto-optical Kerr effect was used to study the magnetic properties of Co ultrathin films deposited on Pt(111). The easy axis of the magnetization changes from the out-of-plane to the in-plane direction after the coverage of Co is larger than 3.5 ML. The spin can reorient to the normal of the surface when the proper thickness of Ag overlayers is deposited on Co/Pt(111) with the in-plane magnetization. The out-of-plane magnetization and its coercivity as a function of Ag coverage were investigated during the spin-reorientation transition. The easy axis of the magnetization can shift back to the in-plane direction after the Ag overlayers are sputtered out. The chemical compositions of the interfaces were measured by Auger electron spectroscopy. The mechanism of the spin-reorientation transition induced by Ag is discussed.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number18
DOIs
Publication statusPublished - 2002 Jan 1

Fingerprint

Ultrathin films
retraining
Magnetization
magnetization
Optical Kerr effect
Auger electron spectroscopy
Kerr effects
Coercive force
Auger spectroscopy
coercivity
electron spectroscopy
Magnetic properties
chemical composition
magnetic properties
shift
Chemical analysis
Direction compound

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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Ag-induced spin-reorientation transition of Co ultrathin films on Pt(111). / Chen, F. C.; Wu, Y. E.; Su, C. W.; Shern, C. S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 18, 01.01.2002, p. 1-5.

Research output: Contribution to journalArticle

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