Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session K22: Superconductivity: Competing Phases-II
3:00 PM–5:36 PM,
Tuesday, March 7, 2023
Room: Room 214
Sponsoring
Unit:
DCMP
Chair: Kalyan Sasmal, Department of Physics, University of California, San Diego.
Abstract: K22.00003 : High magnetic field superconductivity in a two-band superconductor*
3:24 PM–3:36 PM
Presenter:
Tancredi Salamone
(Norwegian University of Science and Technology)
Authors:
Tancredi Salamone
(Norwegian University of Science and Technology)
Henning G Hugdal
(Norwegian Univ Tech (NTNU))
Sol H Jacobsen
(Norwegian Univ Tech (NTNU))
Morten Amundsen
(NORDITA)
In our work (arXiv:2208.04338 (2022)) we consider spin-splitting induced by an external in-plane magnetic field in a superconductor with two relevant bands close to the Fermi level, and show that the presence of interband superconducting pairing can promote superconductivity above the conventional limiting values of the magnetic field. Therefore, we provide evidence for a new mechanism for the limit violation.
*Computations have been performed on the SAGA supercomputer provided by UNINETT Sigma2. Funding provided by "Outstanding Academic Fellows" programme at NTNU, the Research Council of Norway Grant No. 302315, Centres of Excellence funding scheme, Project No. 262633, "QuSpin." Nordita is supported in part by NordForsk.
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