Where does the spin reside in ferromagnetic Cu-doped ZnO?

D. J. Keavney, D. B. Buchholz, Q. Ma, R. P.H. Chang

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

The authors report a soft x-ray absorption spectroscopy and magnetic circular dichroism study of the ferromagnetism in pulsed-laser-deposited Cu-doped ZnO thin films, which display robust room-temperature ferromagnetic signatures using bulk magnetization probes. In this work, the authors probe the spin asymmetries in the Cu 3d, O 2p, and Zn 3d states individually. They find a paramagnetic component originating from the Cu 3d, and no magnetic signal in the O or Zn. They find no dichroic signal consistent with ferromagnetism originating from any of these states.

Original languageEnglish
Article number012501
JournalApplied Physics Letters
Volume91
Issue number1
DOIs
Publication statusPublished - Nov 19 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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