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26 April 2024

» arxiv » 2009.00498

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Pseudo spin-valve switch based on ferromagnet/superconductor/ferromagnet trilayer microbridge
L.N. Karelina ; V.V. Bol'ginov ; Sh.A. Erkenov ; S.V. Egorov ; I.A. Golovchanskiy ; V.I. Chichkov ; A. ben Hamida ; V.V. Ryazanov ;
Date:	1 Sep 2020
Abstract:	A noticeable magnetoresistive effect has been observed on ferromagnet/superconductor/ferromagnet (FSF) microbridges based on diluted ferromagnetic PdFe alloy containing as small as 1% magnetic atoms. Microstructuring of the FSF trilayers does not destroy the effect: the most pronounced curves were obtained on the smallest bridges of 6-8 um wide and 10-15 um long. Below the superconducting transition we are able to control the critical current of microbridges by switching between P and AP orientations of magnetizations of PdFe layers. The operation of FSF-bridge as a magnetic switch is demonstrated in several regimes providing significant voltage discrimination between digital states or remarkably low bit error rate.
Source:	arXiv, 2009.00498
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