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4 October 2022 Temperature-dependent spin-transport and current-induced torques in superconductor/ferromagnet heterostructures (Conference Presentation)
Matthias Althammer
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Proceedings Volume PC12205, Spintronics XV; PC122050Z (2022) https://doi.org/10.1117/12.2633284
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Proximity effects at superconductor(SC)/ferromagnet(FM) interfaces provide novel functionality in the field of superconducting spintronics. We investigate the spin current transport in SC/Permalloy (Py) heterostructures with a Pt spin sink layer. To this end, we excite ferromagnetic resonance in the Py-layer via a coplanar waveguide (CPW) at different microwave frequencies. A phase sensitive detection of the microwave transmission signal is used to quantitatively extract the inductive coupling strength between sample and CPW as a function of temperature. This approach enables the analysis of ac charge currents excited by the magnetization precession in SC/FM hybrids, like inverse spin-orbit torque induced charge currents.
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Matthias Althammer "Temperature-dependent spin-transport and current-induced torques in superconductor/ferromagnet heterostructures (Conference Presentation)", Proc. SPIE PC12205, Spintronics XV, PC122050Z (4 October 2022); https://doi.org/10.1117/12.2633284
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KEYWORDS
Heterojunctions
Superconductors
Microwave radiation
Spintronics
Technetium
Interfaces
Platinum
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