μSR studies of superconducting MgB1.96C0.04

K. Papagelis, J. Arvanitidis, I. Margiolaki, K. Brigatti, Kosmas Prassides, A. Schenck, A. Lappas, A. Amato, Y. Iwasa, T. Takenobu

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2 Citations (Scopus)

Abstract

The superconducting properties of MgB1.96C0.04 have been investigated by the transverse-field muon spin rotation (TF-μSR) technique. The extracted temperature dependence of the μ+ spin depolarization rate, σ at TF = 0.6T has been analyzed in terms of a two-gap model. Carbon doping affects the size of both superconducting gaps and the doping effect is more pronounced for the smaller gap, which is related to the 3D π-sheets of the Fermi surface. The 'universal' correlation between the superconducting transition temperature, Tc and the effective Fermi temperature, TF (Uemura plot) is also discussed.

Original languageEnglish
Pages (from-to)346-349
Number of pages4
JournalPhysica B: Condensed Matter
Volume326
Issue number1-4
DOIs
Publication statusPublished - 2003 Feb 1

Keywords

  • Carbon doped MgB
  • Two-gap model

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Papagelis, K., Arvanitidis, J., Margiolaki, I., Brigatti, K., Prassides, K., Schenck, A., Lappas, A., Amato, A., Iwasa, Y., & Takenobu, T. (2003). μSR studies of superconducting MgB1.96C0.04. Physica B: Condensed Matter, 326(1-4), 346-349. https://doi.org/10.1016/S0921-4526(02)01621-6