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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2002     Display Documents



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ID: 7189.0, MPI für Festkörperforschung / FKF Publikationen 2002
Superconductivity in MgB2: Clean or Dirty?
Authors:Mazin, I. I.; Andersen, O. K.; Jepsen, O.; Dolgov, O. V.; Kortus, J.; Golubov, A. A.; Kuz'menko, A. B.; van der Marel, D.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Physical Review Letters
Volume:89
Issue / Number:10
Sequence Number of Article:107002
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:A large number of experimental facts and theoretical arguments
favor a two-gap model for superconductivity in MgB2. However,
this model predicts strong suppression of the critical
temperature by interband impurity scattering and, presumably, a
strong correlation between the critical temperature and the
residual resistivity. No such correlation has been observed. We
argue that this fact can be understood if the band disparity of
the electronic structure is taken into account, not only in the
superconducting state, but also in normal transport.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
; Univ Twente, Dept Appl Phys, NL-7500 AE Enschede, Netherlands
; Univ Groningen, NL-9747 AG Groningen, Netherlands
Identifiers:ISI:000177582600042
ISSN:0031-9007
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