Fe valence state at the surface of the Fe0.5Cu0.5Cr2S4 spinel
| Autor(en): | Taubitz, Christian Hu, Zhiwei Hollmann, Nils Chin, Yi-Ying Kuepper, Karsten Tsurkan, Vladimir Lin, H. -J. Chen, C. T. Tjeng, L. H. Neumann, Manfred |
Stichwörter: | electronic structure; Fe; FECR2S4; MAGNETIC-PROPERTIES; Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Applied; Physics, Condensed Matter; spinel; X-ray absorption; X-RAY-ABSORPTION | Erscheinungsdatum: | 2010 | Herausgeber: | WILEY-V C H VERLAG GMBH | Journal: | PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | Volumen: | 4 | Ausgabe: | 11 | Startseite: | 338 | Seitenende: | 339 | Zusammenfassung: | Here we present X-ray absorption measurements of a vacuum cleaved Fe0.5Cu0.5Cr2S4 single crystal. Measurements at different positions on the cleaved sample surface clearly reveal a difference between the valence state of the Fe ions in the surface layers and the valency of the Fe ions present in the bulk. These results confirm the findings of recent measurements outlined previously. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
ISSN: | 18626254 | DOI: | 10.1002/pssr.201004302 |
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