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SKM 2023 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 11: Spintronics, Spincalorics and Magnetotransport

TT 11.3: Vortrag

Montag, 27. März 2023, 15:30–15:45, HSZ 304

Critical current control in ferromagnetic proximity junctions by magnetization and spin injection — •Lukas Kammermeier and Elke Scheer — Universität Konstanz, Konstanz, Germany

We exploit the inverse proximity effect of a ferromagnet on a superconductor to locally suppress the superconductivity in a thin wire and thereby create a Josephson junction.
We show that we can control the critical current Ic over a wider range by manipulating the magnetization state of the ferromagnet, possibly sensitive to single magnetic domains in proximity to the constriction. Additionally, the efficiency of spin injection by running a current from the spin-polarized ferromagnet into the junctions constriction will be presented.

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