Where does the spin reside in ferromagnetic Cu-doped ZnO?
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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 915008
- Report Number(s):
- ANL/XSD/JA-59191; APPLAB; TRN: US200817%%59
- Journal Information:
- Appl. Phys. Lett., Vol. 91, Issue 2007; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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