Nonlinear Meissner Effect in Nb₃Sn Coplanar Resonators

Authors

Junki Makita, Old Dominion UniversityFollow
C. Sundahl
Gianluigi Ciovati, Old Dominion UniversityFollow
C. B. Eom
Alex Gurevich, Old Dominion UniversityFollow

Document Type

Article

Publication Date

2022

DOI

10.1103/PhysRevResearch.4013156

Publication Title

Physical Review Research

Volume

4

Issue

1

Pages

013156 (1-12)

Abstract

We investigated the nonlinear Meissner effect (NLME) in Nb₃Sn thin-film coplanar resonators by measuring the resonance frequency as a function of a parallel magnetic field at different temperatures. We used low rf power probing in films thinner than the London penetration depth λ(B) to significantly increase the field onset of vortex penetration and measure the NLME under equilibrium conditions. Contrary to the conventional quadratic increase of λ(B) with B expected in s-wave superconductors, we observed a nearly linear increase of the penetration depth with B. We concluded that this behavior of λ(B) is due to weak linked grain boundaries in our polycrystalline Nb₃Sn films, which can mimic the NLME expected in a clean d-wave superconductor.

Comments

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Original Publication Citation

Makita, J., Sundahl, C., Ciovati, G., Eom, C., & Gurevich, A. (2022). Nonlinear Meissner effect in Nb₃Sn coplanar resonators. Physical Review Research 4(1) 1-12, Article 013156. https://doi.org/10.1103/PhysRevResearch.4.013156

ORCID

0000-0003-0759-8941 (Gurevich)

Repository Citation

Makita, Junki; Sundahl, C.; Ciovati, Gianluigi; Eom, C. B.; and Gurevich, Alex, "Nonlinear Meissner Effect in Nb₃Sn Coplanar Resonators" (2022). Physics Faculty Publications. 570.
https://digitalcommons.odu.edu/physics_fac_pubs/570