Maccherozzi, F. and Sperl, M. and Panaccione, G. and Minar, J. and Polesya, S. and Ebert, H. and Wurstbauer, U. and Hochstrasser, M. and Rossi, G. and Woltersdorf, G. and Wegscheider, W. and Back, Christian H. (2008) Evidence for a Magnetic Proximity Effect up to Room Temperature at Fe/(Ga,Mn)As Interfaces. PHYSICAL REVIEW LETTERS, 101 (26): 267201. ISSN 0031-9007,
Full text not available from this repository. (Request a copy)Abstract
We report x-ray magnetic circular dichroism and superconducting quantum interference device magnetometry experiments to study magnetic order and coupling in thin Fe/(Ga,Mn)As(100) films. We observe induced magnetic order in the (Ga,Mn)As layer that extends over more than 2 nm, even at room temperature. We find spectroscopic evidences of a hybridized d configuration of Mn atoms in Fe/(Ga,Mn)As, with negligible Mn diffusion and/or MnFe intermixing. We show by experiment as well as by theory that the magnetic moment of the Mn ions couples antiparallel to the moment of the Fe overlayer.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXCHANGE INTERACTIONS; THIN-FILMS; SEMICONDUCTORS; (GA,MN)AS; MN; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Oct 2020 07:22 |
| Last Modified: | 14 Oct 2020 07:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29916 |
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