Electron-phonon coupling and pairing mechanism in β−Bi2Pd centrosymmetric superconductor
Jing-Jing Zheng, E. R. Margine
DOI 10.1103/PhysRevB.95.014512 · Physical Review B
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Abstract
We report first-principles calculations of the superconducting properties of β−Bi2Pd 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 β−Bi2Pd is a phonon-mediated single-anisotropic-gap superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Pd Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.55 | Pressure not reported | unknown |
| Bi2Pd Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.4 | Pressure not reported | unknown |
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