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Superconducting diode effect due to magnetochiral anisotropy in topological insulators and Rashba nanowires

Legg, Henry F. and Loss, Daiene and Klinovaja, Jelena. (2022) Superconducting diode effect due to magnetochiral anisotropy in topological insulators and Rashba nanowires. Physical review B: Condensed matter and materials physics, 106 (10). p. 104501.

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Official URL: https://edoc.unibas.ch/92110/

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Abstract

The critical current of a superconductor can depend on the direction of current flow due to magnetochiral anisotropy when both inversion and time-reversal symmetry are broken, an effect known as the superconducting (SC) diode effect. Here, we consider one-dimensional (1D) systems in which superconductivity is induced via the proximity effect. In both topological insulator and Rashba nanowires, the SC diode effect due to a magnetic field applied along the spin-polarization axis and perpendicular to the nanowire provides a measure of inversion symmetry breaking in the presence of a superconductor. Furthermore, a strong dependence of the SC diode effect on an additional component of magnetic field applied parallel to the nanowire as well as on the position of the chemical potential can be used to detect that a device is in the region of parameter space where the phase transition to topological superconductivity is expected to arise.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretical Nano/Quantum Physics (Klinovaja)
UniBasel Contributors:Klinovaja, Jelena and Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:1098-0121
e-ISSN:1550-235X
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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edoc DOI:
Last Modified:07 Feb 2023 04:10
Deposited On:01 Feb 2023 10:41

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