Dresden 2020 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 16: Poster Session Superconductivity, Cryogenic Particle Detectors, Cryotechnique

TT 16.21: Poster

Montag, 16. März 2020, 15:00–19:00, P2/EG

Controllable Josephson Junctions by ferromagnetic Proximity Effect — •Lukas Kammermeier, Maik Kerstingskötter, Marcel Thalmann, Elke Scheer, and Torsten Pietsch — Universität Konstanz

Josephson junctions (JJ) belong to the most important superconducting devices in terms of applications. Thereby an active tuneability of the JJ's properties is highly desirable. Creating the JJ through local suppression of superconductivity due to the inverse proximity effect with ferromagnets, offers versatile control possibilities. The presented project aims at controlling the JJ by tayloring the ferromagnetic interface and its repsonse to magnetic fields and high frequency radiation to lay the ground for further control via spin pumping and spin injection. We show preliminary experimental results on the transport properties and the observation of fractional Shapiro steps in these types of junctions.

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DPG-Physik > DPG-Verhandlungen > 2020 > Dresden