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  Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays

Sundermann, M., Strigari, F., Willers, T., Weinen, J., Liao, Y. F., Tsuei, K.-D., et al. (2016). Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays. Journal of Electron Spectroscopy and Related Phenomena, 209, 1-8. doi:10.1016/j.elspec.2016.02.002.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-F699-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-0907-E
Genre: Journal Article

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 Creators:
Sundermann, M.1, Author
Strigari, F.1, Author
Willers, T.1, Author
Weinen, J.2, Author              
Liao, Y. F.1, Author
Tsuei, K.-D.1, Author
Hiraoka, N.1, Author
Ishii, H.1, Author
Yamaoka, H.1, Author
Mizuki, J.1, Author
Zekko, Y.1, Author
Bauer, E. D.1, Author
Sarrao, J. L.1, Author
Thompson, J. D.1, Author
Lejay, P.1, Author
Muro, Y.1, Author
Yutani, K.1, Author
Takabatake, T.1, Author
Tanaka, A.1, Author
Hollmann, N.3, Author              
Tjeng, L. H.4, Author              Severing, A.1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Nils Hollmann, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863456              
4Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              

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 Abstract: We present bulk-sensitive hard X-ray photoelectron spectroscopy (HAXPES) data of the Ce3d core levels and lifetime-reduced L-edge X-ray absorption spectroscopy (XAS) in the partial fluorescence yield (PFY) mode of the CeMIn5 family with M=Co, Rh, and Ir. The HAXPES data are analyzed quantitatively with a combination of full multiplet and configuration interaction model which allows correcting for the strong plasmons in the CeMIn5 HAXPES data, and reliable weights w(n) of the different f(n) contributions in the ground state are determined. The CeMIn5 results are compared to HAXPES data of other heavy fermion compounds and a systematic decrease of the hybridization strength V-eff from CePd3 to CeRh3B2 to CeRu2Si2 is observed, while it is smallest for the three CeMIn5 compounds. The f-occupation, however, increases in the same sequence and is close to one for the CeMIn5 family. The PFY-XAS data confirm an identical f-occupation in the three CeMIn5 compounds and a phenomenological fit to these PFY-XAS data combined with a configuration interaction model yields consistent results. (C) 2016 The Authors. Published by Elsevier B.V.

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Language(s): eng - English
 Dates: 2016-05-012016-05-01
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
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Title: Journal of Electron Spectroscopy and Related Phenomena
  Abbreviation : J. Electron Spectrosc. Relat. Phenom.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: - Volume / Issue: 209 Sequence Number: - Start / End Page: 1 - 8 Identifier: ISSN: 0368-2048
CoNE: /journals/resource/954925524767