Superconductivity of Mo3Sb7 from first principles

Details Superconductivity of Mo3Sb7 from first principles Superconductivity of Mo3Sb7 from first principles

2008-08-07

arxiv.org/abs/0808.0974v1

Phys. Rev. B 78, 060507(R), 2008

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures. To be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.78.060507

Superconductivity in Mo3Sb7 is analyzed using the combined electronic structure and phonon calculations, and the electron--phonon coupling constant \lambda_{ph}=0.54 is determined from first principles. This value explains the experimental value of the superconducting critical temperature T_c=2.2 K. The possible influence of spin fluctuations and spin gap on the superconductivity in Mo3Sb7 is discussed, and electron--paramagnon interaction is found to be weak.

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