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Résumé |
I will present our work on the superconducting proximity effect induced in crystalline bismuth nanowires, a system with extremely high Rashba spin-orbit coupling. By connecting these nanowires to superconducting electrodes with very high critical field, we have explored the proximity effect over a broad magnetic field range, up to a regime in which the Zeeman energy reaches the spin-orbit and Fermi energies of the Bismuth wires.
I will go into some detail about the complex interference pattern displayed by the critical current as a function of magnetic field. I will argue that it is due to both spin and orbital degrees of freedom, and is the tell-tale sign of low dimensionality, phase coherent conduction regions interfering within the nanowires.
Ref: Phys. Rev. B 90, 245427 (2014)
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