Fermi surface and band structure of BiPd from ARPES studies

H. Lohani; P. Mishra; Anurag Gupta; V. P. S. Awana; B. R. Sekhar

doi:10.1016/j.physc.2016.12.004

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arXiv · 2310.18800

Fermi surface and band structure of BiPd from ARPES studies

H. Lohani·P. Mishra·Anurag Gupta·V. P. S. Awana·B. R. Sekhar

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Abstract

We present a detailed electronic structure study of the non-centrosymmetric superconductor BiPd based on our angle resolved photoemission spectroscopy (ARPES) measurements and Density Functional Theory (DFT) based calculations. We observe a high intensity distribution on the Fermi surface (FS) of this compound resulting from various electron and hole like bands which are present in the vicinity of the Fermi energy (E$_f$). The near E$_f$ states are primarily composed of Bi-6p with a little admixture of Pd-4d$_{x^2-y^2/zy}$ orbitals. There are various spin-orbit split bands involved in the crossing of E$_f$ making a complex FS. The FS mainly consists of multi sheets of three dimensions which disfavor the nesting between different sheets of the FS. Our comprehensive study elucidates that BiPd could be a s-wave multiband superconductor.

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H. Lohani, P. Mishra, Anurag Gupta, V. P. S. Awana, B. R. Sekhar. 2023-10-28. Fermi surface and band structure of BiPd from ARPES studies. https://doi.org/10.1016/j.physc.2016.12.004

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