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Topological superconductivity from forward phonon scatterings.
- Source :
-
Communications Physics . 8/29/2023, Vol. 6 Issue 1, p1-8. 8p. - Publication Year :
- 2023
-
Abstract
- Searching for topological superconductors with non-Abelian states has been attracting broad interest. The most commonly used recipe for building topological superconductors utilizes the proximity effect, which significantly limits the working temperature. Here, we propose a mechanism to attain topological superconductivity via forward phonon scatterings. Our crucial observation is that electron-phonon interactions with small momentum transfers favor spin-triplet Cooper pairing under an applied magnetic field. This process facilitates the formation of chiral topological superconductivity even without Rashba spin-orbit coupling. As a proof of concept, we propose an experimentally feasible heterostructure to systematically study the entangled relationship among forward-phonon scatterings, Rashba spin-orbit coupling, pairing symmetries, and the topological property of the superconducting state. This theory not only deepens our understanding of the superconductivity induced by the electron-phonon interaction but also sheds light on the critical role of the electron-phonon coupling in pursuing non-Abelian Majorana quasiparticles. Topological superconductors are deemed to carry great potential of realizing non-Abelian states for fault-tolerant quantum computing. Here, the authors propose a new theoretical mechanism to attain topological superconductivity via forward phonon scattering and hence provide a new possibility for engineering high-temperature topological superconductors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23993650
- Volume :
- 6
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Communications Physics
- Publication Type :
- Academic Journal
- Accession number :
- 171101102
- Full Text :
- https://doi.org/10.1038/s42005-023-01311-z