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Topological superconductivity from forward phonon scatterings

Journal Article · · Communications Physics
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.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1997721
Journal Information:
Communications Physics, Journal Name: Communications Physics Journal Issue: 1 Vol. 6; ISSN 2399-3650
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (64)

Enhancing Charge Separation and Photocatalytic Activity of Cubic SrTiO3with Perovskite-Type Materials MTaO3(M=Na, K) for Environmental Remediation: A First-Principles Study journal July 2017
Fault-tolerant quantum computation by anyons journal January 2003
Epitaxial growth of semiconductors on SrTiO3 substrates journal July 2001
Eliashberg theory: A short review journal June 2020
Eliashberg theory of phonon-mediated superconductivity — When it is valid and how it breaks down journal June 2020
Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3 journal November 2014
Turning a band insulator into an exotic superconductor journal July 2014
Zero-bias peaks and splitting in an Al–InAs nanowire topological superconductor as a signature of Majorana fermions journal November 2012
Evidence of cooperative effect on the enhanced superconducting transition temperature at the FeSe/SrTiO3 interface journal February 2019
Conversion of a conventional superconductor into a topological superconductor by topological proximity effect journal January 2020
Observation of topological superconductivity in a stoichiometric transition metal dichalcogenide 2M-WS2 journal May 2021
Theory of the evolution of superconductivity in Sr2RuO4 under anisotropic strain journal March 2017
Quantum Monte Carlo study of lattice polarons in the two-dimensional three-orbital Su–Schrieffer–Heeger model journal June 2020
Zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te) journal June 2019
Atomic line defects and zero-energy end states in monolayer Fe(Te,Se) high-temperature superconductors journal March 2020
Majorana zero modes in superconductor–semiconductor heterostructures journal May 2018
Topological superconductivity in a van der Waals heterostructure journal December 2020
Topological surface superconductivity in FeSe0.45Te0.55 journal July 2022
A note on the Maximum Critical Field of High‐Field Superconductors journal September 1962
Interface induced high temperature superconductivity in single unit-cell FeSe on SrTiO 3 (110) journal May 2016
Topological quantum computation based on chiral Majorana fermions journal October 2018
Chiral p-wave order in Sr 2 RuO 4 journal March 2012
New directions in the pursuit of Majorana fermions in solid state systems journal June 2012
Enhanced superconductivity due to forward scattering in FeSe thin films on SrTiO 3 substrates journal February 2016
What makes the T c of FeSe/SrTiO 3 so high? journal November 2015
Theory of Superconductivity journal December 1957
Tunneling Model of the Superconducting Proximity Effect journal November 1968
Effect of disorder on Majorana localization in topological superconductors: A quasiclassical approach journal December 2020
Enhanced superconductivity in Fe Se / Sr Ti O 3 from the combination of forward scattering phonons and spin fluctuations journal April 2021
Proximity-induced superconductivity generated by thin films: Effects of Fermi surface mismatch and disorder in the superconductor journal August 2022
Towards universal topological quantum computation in the ν = 5 2 fractional quantum Hall state journal June 2006
Odd-parity superconductivity from phonon-mediated pairing: Application to Cu x Bi 2 Se 3 journal November 2014
Bulk disorder in the superconductor affects proximity-induced topological superconductivity journal November 2015
TopologicalD+p-wave superconductivity in Rashba systems journal February 2016
Role of SrTiO 3 phonon penetrating into thin FeSe films in the enhancement of superconductivity journal August 2016
Topological superconductivity in Dirac honeycomb systems journal May 2019
Interplay of paramagnetism and topology in the Fe-chalcogenide high- T c superconductors journal May 2019
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator journal March 2008
Time-Reversal-Invariant Topological Superconductors and Superfluids in Two and Three Dimensions journal May 2009
Generic New Platform for Topological Quantum Computation Using Semiconductor Heterostructures journal January 2010
Superconductivity in Cu x Bi 2 Se 3 and its Implications for Pairing in the Undoped Topological Insulator journal February 2010
Odd-Parity Topological Superconductors: Theory and Application to Cu x Bi 2 Se 3 journal August 2010
Artificial Topological Superconductor by the Proximity Effect journal May 2014
Topological Superconductivity on the Surface of Fe-Based Superconductors journal July 2016
Coexistence of Replica Bands and Superconductivity in FeSe Monolayer Films journal February 2017
Spin-Orbit-Parity-Coupled Superconductivity in Topological Monolayer WTe 2 journal September 2020
Intrinsic Time-Reversal-Invariant Topological Superconductivity in Thin Films of Iron-Based Superconductors journal March 2021
Correlation-Induced Triplet Pairing Superconductivity in Graphene-Based Moiré Systems journal November 2021
New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall Resistance journal August 1980
Superconducting 2D System with Lifted Spin Degeneracy: Mixed Singlet-Triplet State journal July 2001
Upper Limit for the Critical Field in Hard Superconductors journal September 1962
Non-Abelian anyons and topological quantum computation journal September 2008
Topological insulators and superconductors journal October 2011
Spin-triplet superconductivity in K 2 Cr 3 As 3 journal December 2021
Two-dimensional superconductivity at the surfaces of KTaO 3 gated with ionic liquid journal June 2022
Signatures of Majorana Fermions in Hybrid Superconductor-Semiconductor Nanowire Devices journal April 2012
Observation of topological superconductivity on the surface of an iron-based superconductor journal March 2018
Evidence for Majorana bound states in an iron-based superconductor journal August 2018
Gate-induced superconductivity in a monolayer topological insulator journal October 2018
Evidence for dispersing 1D Majorana channels in an iron-based superconductor journal January 2020
Nearly quantized conductance plateau of vortex zero mode in an iron-based superconductor journal December 2019
Chern Numbers in Discretized Brillouin Zone: Efficient Method of Computing (Spin) Hall Conductances journal June 2005
Search for Majorana Fermions in Superconductors journal April 2013
Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices dataset January 2012

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