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Electron-phonon interaction in carbon clathrate hex- \(\mathsf{C_{40}}\)

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Abstract.

The electron-phonon interaction in Li-doped carbon clathrates hex-LiC40 and hex-Li2C40 has been investigated from first principles. Although the characteristic phonon frequency and electron-phonon interaction are large, the electronic density of states is relatively low which finally gives an electron-phonon coupling constant \(\lambda = 0.46\) for Li2C40. Hole-doping is expected to provide higher Tc than n-doping in hex-C40.

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Authors and Affiliations

  1. Dipartimento di Scienza dei Materiali an Istituto Nazionale per la Fisica della Materia, Università degli Studi di Milano-Bicocca, Via Cozzi 53, 20125, Milano, Italy

    I. Spagnolatti, M. Bernasconi & G. Benedek

Authors
  1. I. Spagnolatti
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  2. M. Bernasconi
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  3. G. Benedek
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Corresponding author

Correspondence to M. Bernasconi.

Additional information

Received: 21 March 2003, Published online: 23 July 2003

PACS:

71.15.Mb Density functional theory, local density approximation, gradient and other corrections - 74.70.Wz Fullerenes and related materials - 74.10.+v Occurrence, potential candidates

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Spagnolatti, I., Bernasconi, M. & Benedek, G. Electron-phonon interaction in carbon clathrate hex- \(\mathsf{C_{40}}\) . Eur. Phys. J. B 34, 63–67 (2003). https://doi.org/10.1140/epjb/e2003-00197-0

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  • DOI: https://doi.org/10.1140/epjb/e2003-00197-0

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