Effect of Rashba and Dresselhaus spin-orbit coupling on supercurrent rectification and magnetochiral anisotropy of ballistic Josephson junctions
| Autor: | C Baumgartner, L Fuchs, A Costa, Jordi Picó-Cortés, S Reinhardt, S Gronin, G C Gardner, T Lindemann, M J Manfra, P E Faria Junior, D Kochan, J Fabian, N Paradiso, C Strunk |
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| Rok vydání: | 2022 |
| Předmět: |
Rashba
Dresselhaus supercurrent diode magnetochiral anisotropy nonreciprocal transport epitaxial aluminum superconducting 2DEG Superconductivity (cond-mat.supr-con) Condensed Matter::Quantum Gases Condensed Matter - Superconductivity Condensed Matter::Superconductivity ddc:530 FOS: Physical sciences General Materials Science Condensed Matter Physics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 530 Physik |
| DOI: | 10.5283/epub.51517 |
| Popis: | Simultaneous breaking of inversion- and time-reversal symmetry in Josephson junction leads to a possible violation of the $I(\varphi)=-I(-\varphi)$ equality for the current-phase relation. This is known as anomalous Josephson effect and it produces a phase shift $\varphi_0$ in sinusoidal current-phase relations. In ballistic Josephson junctions with non-sinusoidal current phase relation the observed phenomenology is much richer, including the supercurrent diode effect and the magnetochiral anisotropy of Josephson inductance. In this work, we present measurements of both effects on arrays of Josephson junctions defined on epitaxial Al/InAs heterostructures. We show that the orientation of the current with respect to the lattice affects the magnetochiral anisotropy, possibly as the result of a finite Dresselhaus component. In addition, we show that the two-fold symmetry of the Josephson inductance reflects in the activation energy for phase slips. Comment: 9 pages, 4 figures |
| Databáze: | OpenAIRE |
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