Low-energy surface states in the normal state of superconductor
Abstract
Topological superconductors as characterized by Majorana surface states have been actively searched for their significance in fundamental science and technological implication. The large spin-orbit coupling in Bi-Pd binaries has stimulated extensive investigations on the topological surface states in these superconducting compounds. Here we report a study of normal-state electronic structure in a centrosymmetric α-PdBi2 within density functional theory calculations. By investigating the electronic structure from the bulk to slab geometries in this system, we predict for the first time that α-PdBi2 can host orbital-dependent and asymmetric Rashba surface states near the Fermi energy. This study suggests that α-PdBi2 will be a good candidate to explore the relationship between superconductivity and topology in condensed matter physics.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Central Florida, Orlando, FL (United States)
- Tokyo Inst. of Technology (Japan)
- Nanyang Technological Univ. (Singapore)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1406216
- Alternate Identifier(s):
- OSTI ID: 1376943
- Report Number(s):
- LA-UR-17-22900
Journal ID: ISSN 2475-9953; PRMHAR; TRN: US1703258
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 1; Journal Issue: 3; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Material Science
Citation Formats
Choi, Hongchul, Neupane, Madhab, Sasagawa, T., Chia, Elbert E. M., and Zhu, Jian-Xin. Low-energy surface states in the normal state of α-PdBi2 superconductor. United States: N. p., 2017.
Web. doi:10.1103/PhysRevMaterials.1.034201.
Choi, Hongchul, Neupane, Madhab, Sasagawa, T., Chia, Elbert E. M., & Zhu, Jian-Xin. Low-energy surface states in the normal state of α-PdBi2 superconductor. United States. https://doi.org/10.1103/PhysRevMaterials.1.034201
Choi, Hongchul, Neupane, Madhab, Sasagawa, T., Chia, Elbert E. M., and Zhu, Jian-Xin. Fri .
"Low-energy surface states in the normal state of α-PdBi2 superconductor". United States. https://doi.org/10.1103/PhysRevMaterials.1.034201. https://www.osti.gov/servlets/purl/1406216.
@article{osti_1406216,
title = {Low-energy surface states in the normal state of α-PdBi2 superconductor},
author = {Choi, Hongchul and Neupane, Madhab and Sasagawa, T. and Chia, Elbert E. M. and Zhu, Jian-Xin},
abstractNote = {Topological superconductors as characterized by Majorana surface states have been actively searched for their significance in fundamental science and technological implication. The large spin-orbit coupling in Bi-Pd binaries has stimulated extensive investigations on the topological surface states in these superconducting compounds. Here we report a study of normal-state electronic structure in a centrosymmetric α-PdBi2 within density functional theory calculations. By investigating the electronic structure from the bulk to slab geometries in this system, we predict for the first time that α-PdBi2 can host orbital-dependent and asymmetric Rashba surface states near the Fermi energy. This study suggests that α-PdBi2 will be a good candidate to explore the relationship between superconductivity and topology in condensed matter physics.},
doi = {10.1103/PhysRevMaterials.1.034201},
journal = {Physical Review Materials},
number = 3,
volume = 1,
place = {United States},
year = {Fri Aug 25 00:00:00 EDT 2017},
month = {Fri Aug 25 00:00:00 EDT 2017}
}
Web of Science
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