Nonreciprocal critical current in an obliquely ion-irradiated YBa2Cu3O7 film-Reference-Cited by-同舟云学术

Nonreciprocal critical current in an obliquely ion-irradiated YBa2Cu3O7 film

Published:2023-04-24 Issue:17 Volume:122 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Matsui H.¹^ORCID,Nishijima G.²^ORCID,Matsumoto A.²^ORCID,Yamaguchi I.¹^ORCID,Manabe T.¹^ORCID,Sohma M.¹^ORCID

Affiliation:

1. National Institute of Advanced Industrial Science and Technology (AIST) 1 , 1-1-1 Higashi, Tsukuba 305-8565, Japan

2. National Institute for Materials Science (NIMS) 2 , 3-13 Sakura, Tsukuba 305-0003, Japan

Abstract

We observed a superconducting diode effect (SDE) at 77 K in a YBa2Cu3O7 (YBCO) film irradiated with 75-MeV-Au ions directed 30°-off normal to the film surface. Up to 3% asymmetry in dc critical-current appeared remarkably in out-of-plane magnetic fields. In this field orientation, a conventional SDE does not emerge due to an asymmetric barrier to vortex entry between the film surface and the film–substrate interface. We also observed a sudden reversal of the diode polarity when the magnetic-field-angle was rotated across the ion-incident-angle. Our results indicate an unconventional SDE in YBCO films that include tilted 1D defects.

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

Link

https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/5.0146885/17102372/172601_1_5.0146885.pdf

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