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  Evolution of ground-state wave function in CeCoIn5 upon Cd or Sn doping

Chen, K., Strigari, F., Sundermann, M., Hu, Z., Fisk, Z., Bauer, E. D., et al. (2018). Evolution of ground-state wave function in CeCoIn5 upon Cd or Sn doping. Physical Review B, 97(4): 045134, pp. 1-6. doi:10.1103/PhysRevB.97.045134.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-642A-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-6430-9
Genre: Journal Article

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 Creators:
Chen, K.1, Author
Strigari, F.1, Author
Sundermann, M.2, Author              
Hu, Z.3, Author              
Fisk, Z.1, Author
Bauer, E. D.1, Author
Rosa, P. F. S.1, Author
Sarrao, J. L.1, Author
Thompson, J. D.1, Author
Herrero-Martin, J.1, Author
Pellegrin, E.1, Author
Betto, D.1, Author
Kummer, K.1, Author
Tanaka, A.1, Author
Wirth, S.4, Author              
Severing, A.2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              
4Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              

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 Abstract: We present linear polarization-dependent soft-x-ray absorption spectroscopy data at the Ce M-4,M-5 edges of Cd- and Sn-dopedCeCoIn(5). The(4)f ground-state wave functions have been determined for their superconducting, anti-ferromagnetic, and paramagnetic ground states. The absence of changes in the wave functions in CeCo(In1-x Cd-x)(5) suggests that the 4f-conduction-electron (cf) hybridization is not affected by global Cd doping, thus supporting the interpretation of magnetic droplets nucleating long-range magnetic order. This is contrasted by changes in the wave function due to Sn substitution. Increasing Sn in CeCo(In1-y Sn-y)(5) compresses the 4f orbitals into the tetragonal plane of these materials, suggesting enhanced cf hybridization with the in-plane In(1) atoms and a homogeneous altering of the electronic structure. As these experiments show, the 4f wave functions are a very sensitive probe of small changes in the hybridization of 4f and conduction electrons, even conveying information about direction dependencies.

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Language(s): eng - English
 Dates: 2018-01-172018-01-17
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1103/PhysRevB.97.045134
 Degree: -

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 97 (4) Sequence Number: 045134 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008