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  Itinerant iron magnetism in filled skutterudites CaFe4Sb12 and YbFe4Sb12: Stable divalent state of ytterbium

Schnelle, W., Leithe-Jasper, A., Schmidt, M., Rosner, H., Borrmann, H., Burkhardt, U., et al. (2005). Itinerant iron magnetism in filled skutterudites CaFe4Sb12 and YbFe4Sb12: Stable divalent state of ytterbium. Physical Review B, 72: 020402, pp. 020402-1-020402-4. doi:10.1103/PhysRevB.72.020402.

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 Creators:
Schnelle, W.1, Author              
Leithe-Jasper, A.2, Author              
Schmidt, M.3, Author              
Rosner, H.4, Author              
Borrmann, H.5, Author              
Burkhardt, U.6, Author              
Mydosh, J. A.7, Author              
Grin, Y.8, Author              
Affiliations:
1Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
2Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863406              
3Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863415              
4Helge Rosner, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863450              
5Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              
6Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863422              
7Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
8Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

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 Abstract: A comparative study of the filled skutterudite compounds YbFe4Sb12 and CaFe4Sb12 is presented. Crystal structure investigations and measurements of magnetic susceptibility, specific heat and electrical resistivity in magnetic field, and x-ray absorption spectroscopy have been performed. Almost identical structural, magnetic, and electronic properties of both compounds are observed. Electronic structure calculations support this similarity. It is concluded that ytterbium in Yb1−xFe4Sb12 is stable divalent and the magnetic moments in both materials are solely due to itinerant-electron paramagnetism of the Fe−Sb polyanion. The calcium and ytterbium iron-antimony skutterudites are nearly ferromagnetic metals and their properties are mainly governed by spin fluctuations.

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Language(s): eng - English
 Dates: 2005-07-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 241702
DOI: 10.1103/PhysRevB.72.020402
 Degree: -

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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 72 Sequence Number: 020402 Start / End Page: 020402-1 - 020402-4 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008