Direct observation of a superconducting vortex diode

Alon Gutfreund; Hisakazu Matsuki; Vadim Plastovets; Avia Noah; Laura Gorzawski; Nofar Fridman; Guang Yang; Alexander Buzdin; Oded Millo; Jason W. A. Robinson; Yonathan Anahory

doi:10.1038/s41467-023-37294-2

Nature Communications (Mar 2023)

Direct observation of a superconducting vortex diode

Alon Gutfreund,
Hisakazu Matsuki,
Vadim Plastovets,
Avia Noah,
Laura Gorzawski,
Nofar Fridman,
Guang Yang,
Alexander Buzdin,
Oded Millo,
Jason W. A. Robinson,
Yonathan Anahory

Affiliations

Alon Gutfreund: The Racah Institute of Physics, The Hebrew University of Jerusalem
Hisakazu Matsuki: Department of Materials Science & Metallurgy, University of Cambridge
Vadim Plastovets: LOMA UMR-CNRS 5798, University of Bordeaux
Avia Noah: The Racah Institute of Physics, The Hebrew University of Jerusalem
Laura Gorzawski: Department of Materials Science & Metallurgy, University of Cambridge
Nofar Fridman: The Racah Institute of Physics, The Hebrew University of Jerusalem
Guang Yang: Department of Materials Science & Metallurgy, University of Cambridge
Alexander Buzdin: LOMA UMR-CNRS 5798, University of Bordeaux
Oded Millo: The Racah Institute of Physics, The Hebrew University of Jerusalem
Jason W. A. Robinson: Department of Materials Science & Metallurgy, University of Cambridge
Yonathan Anahory: The Racah Institute of Physics, The Hebrew University of Jerusalem

DOI: https://doi.org/10.1038/s41467-023-37294-2
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 7

Abstract

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A nonreciprocal critical current is known as the superconducting diode effect (SDE). Here, the authors use SQUID-on-tip to study SDE in a EuS/Nb bilayer and find that the stray field from magnetized EuS creates screening currents in the Nb, which lead to SDE by affecting vortex flow dynamics.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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