Pseudo spin-valve switch based on ferromagnet/superconductor/ferromagnet trilayer microbridge
Superconductivity
2020-09-02 v1
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.
Keywords
Cite
@article{arxiv.2009.00498,
title = {Pseudo spin-valve switch based on ferromagnet/superconductor/ferromagnet trilayer microbridge},
author = {L. N. Karelina and V. V. Bol'ginov and Sh. A. Erkenov and S. V. Egorov and I. A. Golovchanskiy and V. I. Chichkov and A. ben Hamida and V. V. Ryazanov},
journal= {arXiv preprint arXiv:2009.00498},
year = {2020}
}
Comments
10 pages, 4 figures