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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2004     Display Documents



  history
ID: 192788.0, MPI für Festkörperforschung / FKF Publikationen 2004
Comment on "First-principles calculation of the superconducting transition in MgB2 within the anisotropic Eliashberg formalism"
Authors:Mazin, I. I.; Andersen, O. K.; Jepsen, O.; Golubov, A. A.; Dolgov, O. V.; Kortus, J.
Language:English
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Physical Review B
Volume:69
Issue / Number:5
Sequence Number of Article:056501
Review Status:not specified
Audience:Not Specified
Abstract / Description:Choi [Phys. Rev. B 66, 020513 (2002)] recently presented
first-principles calculations of the electron-phonon coupling and
superconductivity in MgB2, emphasizing the importance of anisotropy and
anharmonicity. We point out that (1) variation of the superconducting
gap inside the sigma or the pi bands can hardly be observed in real
samples, and (2) taking the anisotropy of the Coulomb repulsion into
account influences the size of the small gap, Delta(pi).
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 Tubingen, D-72076 Tubingen, Germany.
Identifiers:ISI:000220001700083 [ID No:1]
ISSN:1098-0121 [ID No:2]
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