Characterization of magnetic components in the diluted magnetic semiconductorby x-ray magnetic circular dichroism
- 14 November 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 72 (20), 201201
- https://doi.org/10.1103/physrevb.72.201201
Abstract
We report on the results of x-ray absorption, x-ray magnetic circular dichroism (XMCD), and photoemission experiments on thin film, which shows ferromagnetism at room temperature. The XMCD spectra show multiplet structures, characteristic of the ion tetrahedrally coordinated by oxygen, suggesting that the ferromagnetism comes from Co ions substituting the Zn site in ZnO. The magnetic field and temperature dependences of the XMCD spectra imply that the nonferromagnetic Co ions are strongly coupled antiferromagnetically with each other.
Keywords
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