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  Comment on "First-principles calculation of the superconducting transition in MgB2 within the anisotropic Eliashberg formalism"

Mazin, I. I., Andersen, O. K., Jepsen, O., Golubov, A. A., Dolgov, O. V., & Kortus, J. (2004). Comment on "First-principles calculation of the superconducting transition in MgB2 within the anisotropic Eliashberg formalism". Physical Review B, 69(5): 056501.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000E-FEE8-F Version Permalink: https://hdl.handle.net/21.11116/0000-000E-FEE9-E
Genre: Journal Article

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 Creators:
Mazin, I. I.1, Author           
Andersen, O. K.1, Author           
Jepsen, O.1, Author           
Golubov, A. A.2, Author           
Dolgov, O. V.1, 3, 4, Author           
Kortus, J.1, Author           
Affiliations:
1Former Departments, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370502              
2Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society, ou_3370501              
3Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370480              
4Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370481              

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 Abstract: 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).

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Language(s): eng - English
 Dates: 2004
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 192788
ISI: 000220001700083
 Degree: -

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Title: Physical Review B
Source Genre: Journal
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Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 69 (5) Sequence Number: 056501 Start / End Page: - Identifier: ISSN: 1098-0121