Low-energy surface states in the normal state of α−PdBi2 superconductor
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 i...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106770 http://hdl.handle.net/10220/48975 |
| _version_ | 1826114603716706304 |
|---|---|
| author | Choi, Hongchul Neupane, Madhab Sasagawa, T. Chia, Elbert Ee Min Zhu, Jian-Xin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Choi, Hongchul Neupane, Madhab Sasagawa, T. Chia, Elbert Ee Min Zhu, Jian-Xin |
| author_sort | Choi, Hongchul |
| collection | NTU |
| description | 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 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. |
| first_indexed | 2024-10-01T03:41:48Z |
| format | Journal Article |
| id | ntu-10356/106770 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:41:48Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1067702023-02-28T19:45:52Z Low-energy surface states in the normal state of α−PdBi2 superconductor Choi, Hongchul Neupane, Madhab Sasagawa, T. Chia, Elbert Ee Min Zhu, Jian-Xin School of Physical and Mathematical Sciences First-principles Calculations Rashba Coupling DRNTU::Science::Physics 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 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. MOE (Min. of Education, S’pore) Published version 2019-06-27T03:45:45Z 2019-12-06T22:18:05Z 2019-06-27T03:45:45Z 2019-12-06T22:18:05Z 2017 Journal Article Choi, H., Neupane, M., Sasagawa, T., Chia, E. E. M., & Zhu, J.-X. (2017). Low-energy surface states in the normal state of α−PdBi2 superconductor. Physical Review Materials, 1(3), 034201-. doi:10.1103/PhysRevMaterials.1.034201 https://hdl.handle.net/10356/106770 http://hdl.handle.net/10220/48975 10.1103/PhysRevMaterials.1.034201 en Physical Review Materials © 2017 American Physical Society. All rights reserved. This paper was published in Physical Review Materials and is made available with permission of American Physical Society. 5 p. application/pdf |
| spellingShingle | First-principles Calculations Rashba Coupling DRNTU::Science::Physics Choi, Hongchul Neupane, Madhab Sasagawa, T. Chia, Elbert Ee Min Zhu, Jian-Xin Low-energy surface states in the normal state of α−PdBi2 superconductor |
| title | Low-energy surface states in the normal state of α−PdBi2 superconductor |
| title_full | Low-energy surface states in the normal state of α−PdBi2 superconductor |
| title_fullStr | Low-energy surface states in the normal state of α−PdBi2 superconductor |
| title_full_unstemmed | Low-energy surface states in the normal state of α−PdBi2 superconductor |
| title_short | Low-energy surface states in the normal state of α−PdBi2 superconductor |
| title_sort | low energy surface states in the normal state of α pdbi2 superconductor |
| topic | First-principles Calculations Rashba Coupling DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/106770 http://hdl.handle.net/10220/48975 |
| work_keys_str_mv | AT choihongchul lowenergysurfacestatesinthenormalstateofapdbi2superconductor AT neupanemadhab lowenergysurfacestatesinthenormalstateofapdbi2superconductor AT sasagawat lowenergysurfacestatesinthenormalstateofapdbi2superconductor AT chiaelberteemin lowenergysurfacestatesinthenormalstateofapdbi2superconductor AT zhujianxin lowenergysurfacestatesinthenormalstateofapdbi2superconductor |