Electronic band structure, Fermi surface and effect of spin-orbit coupling for tetragonal low-temperature superconductor Bi2Pd from first principles

2012/08/08 by Shein, I. R., Ivanovskii, A. L.
#FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Superconductivity (cond-mat.supr-con)

paper · doi:10.48550/arxiv.1208.1633

Abstract

We have examined theoretically the electronic band structure and Fermi surface of tetragonal low-temperature superconductor Bi2Pd. Our main results are that (i) the Pd 4d and Bi 6p states determine the main peculiarities of the multiple-sheets FS topology, thus for this material the complicated superconducting gap structure with different energy gaps on different FS sheets should be assumed; (ii) the effect of the spin-orbit coupling is of minor importance for the distributions of the near-Fermi electronic states; and (iii) this phase adopts 3D-like type owing to the directional bonds between the adjacent atomic sheets.

Related

• Ab initio study of orbital-selective superconductivity in γ-BiPd
• Electronic band structure of low-temperature YB12, YB6 superconductors and layered YB2, MgB2 diborides
• Fermi surface and superconducting gap of triple-layered Bi2Sr2Ca2Cu3O10+d
• Evidence for conventional superconductivity in Bi₂PdPt and prediction of topological superconductivity in disorder-free γ-BiPd
• Discovery of the topological surface state in a noncentrosymmetric superconductor BiPd