Electron-phonon coupling and pairing mechanism in βBi2Pd centrosymmetric superconductor

Jing-Jing Zheng and E. R. Margine
Phys. Rev. B 95, 014512 – Published 17 January 2017
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Abstract

We report first-principles calculations of the superconducting properties of βBi2Pd within the fully anisotropic Migdal-Eliashberg formalism. We find a single anisotropic superconducting gap of s-wave symmetry which varies in magnitude on the different regions of the Fermi surface. The calculated superconducting energy gap on the Fermi surface, the superconducting transition temperature, the specific heat, and the quasiparticle density of states are in good agreement with the corresponding experimental results and support the view that βBi2Pd is a phonon-mediated single-anisotropic-gap superconductor.

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  • Received 14 October 2016
  • Revised 15 December 2016

DOI:https://doi.org/10.1103/PhysRevB.95.014512

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Jing-Jing Zheng1,2 and E. R. Margine1,*

  • 1Department of Physics, Applied Physics and Astronomy, Binghamton University–SUNY, Binghamton, New York 13902, USA
  • 2Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, People's Republic of China

  • *Corresponding author: rmargine@binghamton.edu

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Issue

Vol. 95, Iss. 1 — 1 January 2017

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