Journal Article

FZJ-2015-04036

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Electronic Structure Changes across the Metamagnetic Transition in FeRh via Hard X-Ray Photoemission

Gray, A. X. ; Cooke, D. W. ; Krüger, P. ; Bordel, C. ; Kaiser, A. M. ; Moyerman, S. ; Fullerton, E. E. ; Ueda, S. ; Yamashita, Y. ; Gloskovskii, A. ; Schneider, C. M.FZJ* ; Drube, W. ; Kobayashi, K. ; Hellman, F. ; Fadley, C. S.

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/8789  doi:10.1103/PhysRevLett.108.257208

Abstract: Stoichiometric FeRh undergoes a temperature-induced antiferromagnetic (AFM) to ferromagnetic (FM) transition at ∼350  K. In this Letter, changes in the electronic structure accompanying this transition are investigated in epitaxial FeRh thin films via bulk-sensitive valence-band and core-level hard x-ray photoelectron spectroscopy with a photon energy of 5.95 keV. Clear differences between the AFM and FM states are observed across the entire valence-band spectrum and these are well reproduced using density-functional theory. Changes in the 2p core levels of Fe are also observed and interpreted using Anderson impurity model calculations. These results indicate that significant electronic structure changes over the entire valence-band region are involved in this AFM-FM transition.

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. 42G - Peter Grünberg-Centre (PG-C) (POF2-42G41) (POF2-42G41)

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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