Papers

Peer-reviewed
Apr, 2005

Influence of the crystal field potential on the superconducting properties of PrRU(4)Sb(12)

PHYSICA B-CONDENSED MATTER
  • DT Adroja
    • ,
  • JG Park
    • ,
  • EA Goremychkin
    • ,
  • N Takeda
    • ,
  • M Ishikawa
    • ,
  • KA McEwen
    • ,
  • R Osborn
    • ,
  • AD Hillier
    • ,
  • BD Rainford
Volume
359
Number
First page
983
Last page
985
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1016/j.physb.2005.01.286
Publisher
ELSEVIER SCIENCE BV
We have determined the crystal field potential of the superconductor PrRu(4)Sb(12) (T(c) similar to 0.9 K) using inelastic neutron scattering. The ground state of the Pr(+3) ions in T(h) point group symmetry is a Gamma(1) singlet with a Gamma(5) triplet at an energy of Delta similar to 5.6meV. Comparison with recent results on the PrOs(4)Sb(12) compound, where T(c) similar to 1.85 K and Delta similar to 0.6 meV, supports the conjecture that inelastic quadrupolar fluctuations (or aspherical Coulomb scattering) are responsible for the strong enhancement of T(c). In PrRu(4)Sb(12), the effect is reduced by the higher energy of the first excited level. (c) 2005 Elsevier B.V. All rights reserved.
Link information
DOI
https://doi.org/10.1016/j.physb.2005.01.286
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000229654400310&DestApp=WOS_CPL
ID information
  • DOI : 10.1016/j.physb.2005.01.286
  • ISSN : 0921-4526
  • Web of Science ID : WOS:000229654400310
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