Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 35: Superconducting Electronics: SQUIDs, Circuit QED
TT 35.7: Vortrag
Mittwoch, 20. März 2024, 11:00–11:15, H 2053
Anisotropic magnetic field dependence in hybrid superconductor/semiconductor microwave resonator as a signature of unconventional induced superconductivity — •Simon Feyrer1, Ignacio Lobato1, Michael Prager1, Dominique Bougeard1, Carlos Balseiro2, Marco Aprili3, Christoph Strunk1, and Leandro Tosi1,2 — 1Institute of Experimental and Applied Physics, University of Regensburg, Germany — 2Centro Atomico Bariloche, Comision Nacional de Energia Atomica, Argentina — 3Laboratoire de Physique des Solides, Université Paris-Saclay, France
We present measurements of the frequency response of a lumped element microwave resonator made out of hybrid Al/InAs superconductor/semiconductor 2D heterostructures. In our device, the inductor is a narrow wire taylored in the material, dominating the kinetic inductance contribution. The resonance frequency depends on temperature, on power and strongly on in-plane magnetic field. We have observed an anisotropic magnetic field dependence, stronger when the in-plane field is orientated perpendicular to the wire. This anisotropy can be explained by considering the contribution of the kinetic inductance of the InAs 2DEG, where the induced superconductivity is affected by the spin-orbit coupling [1].
[1] D. Phan et al., Phys. Rev. Lett. 128 (2022) 107701
Keywords: proximity effect; hybrid quantum circuits; microwave resonators