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Evidence for a Magnetic Proximity Effect up to Room Temperature at Fe/(Ga,Mn)As Interfaces
Maccherozzi, F., Sperl, M., Panaccione, G., Minar, J.
, Polesya, S., Ebert, H., Wurstbauer, U. , Hochstrasser, M., Rossi, G., Woltersdorf, Georg , Wegscheider, Werner and Back, Christian H.
(2008)
Evidence for a Magnetic Proximity Effect up to Room Temperature at Fe/(Ga,Mn)As Interfaces.
Physical Review Letters (PRL) 101 (26), p. 267201.
Date of publication of this fulltext: 27 May 2010 10:13
Article
DOI to cite this document: 10.5283/epub.14916
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, ...
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.
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| Item type | Article | ||||||||
| Journal or Publication Title | Physical Review Letters (PRL) | ||||||||
| Publisher: | AMER PHYSICAL SOC | ||||||||
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| Open Access Type: | Due to SHERPA/RoMEO | ||||||||
| Place of Publication: | COLLEGE PK | ||||||||
| Volume: | 101 | ||||||||
| Number of Issue or Book Chapter: | 26 | ||||||||
| Page Range: | p. 267201 | ||||||||
| Date | December 2008 | ||||||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider | ||||||||
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| Classification |
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| Keywords | EXCHANGE INTERACTIONS; THIN-FILMS; SEMICONDUCTORS; (GA,MN)AS; MN; | ||||||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||||||
| Status | Published | ||||||||
| Refereed | Yes, this version has been refereed | ||||||||
| Created at the University of Regensburg | Partially | ||||||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-149167 | ||||||||
| Item ID | 14916 |
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