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Title: Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays

Abstract

Harnessing the properties of vortices in superconductors is crucial for fundamental science and technological applications; thus, it has been an ongoing goal to locally probe and control vortices. Here, we use a scanning probe technique that enables studies of vortex dynamics in superconducting systems by leveraging the resonant behavior of a raster-scanned, magnetic-tipped cantilever. This experimental setup allows us to image and control vortices, as well as extract key energy scales of the vortex interactions. Applying this technique to lattices of superconductor island arrays on a metal, we obtain a variety of striking spatial patterns that encode information about the energy landscape for vortices in the system. We interpret these patterns in terms of local vortex dynamics and extract the relative strengths of the characteristic energy scales in the system, such as the vortex-magnetic field and vortex-vortex interaction strengths, as well as the vortex chemical potential. We also demonstrate that the relative strengths of the interactions can be tuned and show how these interactions shift with an applied bias. The high degree of tunability and local nature of such vortex imaging and control not only enable new understanding of vortex interactions, but also have potential applications in more complex systemsmore » such as those relevant to quantum computing.« less

Authors:
 [1]; ORCiD logo [2];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1];  [3]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. Univ. of Illinois at Urbana-Champaign, IL (United States); Univ. of California, Santa Barbara, CA (United States)
  3. Univ. of Illinois at Urbana-Champaign, IL (United States); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada); Univ. of Waterloo, ON (Canada)
Publication Date:
Research Org.:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Gordon and Betty Moore Foundation EPiQS Initiative
OSTI Identifier:
1851725
Alternate Identifier(s):
OSTI ID: 1843856
Grant/Contract Number:  
SC0012649; SC0021238; DMR-17-10437; GBMF4305
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B
Additional Journal Information:
Journal Volume: 103; Journal Issue: 22; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Naibert, Tyler R., Polshyn, Hryhoriy, Garrido-Menacho, Rita, Durkin, Malcolm, Wolin, Brian, Chua, Victor, Mondragon-Shem, Ian, Hughes, Taylor, Mason, Nadya, and Budakian, Raffi. Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays. United States: N. p., 2021. Web. doi:10.1103/physrevb.103.224526.
Naibert, Tyler R., Polshyn, Hryhoriy, Garrido-Menacho, Rita, Durkin, Malcolm, Wolin, Brian, Chua, Victor, Mondragon-Shem, Ian, Hughes, Taylor, Mason, Nadya, & Budakian, Raffi. Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays. United States. https://doi.org/10.1103/physrevb.103.224526
Naibert, Tyler R., Polshyn, Hryhoriy, Garrido-Menacho, Rita, Durkin, Malcolm, Wolin, Brian, Chua, Victor, Mondragon-Shem, Ian, Hughes, Taylor, Mason, Nadya, and Budakian, Raffi. Tue . "Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays". United States. https://doi.org/10.1103/physrevb.103.224526. https://www.osti.gov/servlets/purl/1851725.
@article{osti_1851725,
title = {Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays},
author = {Naibert, Tyler R. and Polshyn, Hryhoriy and Garrido-Menacho, Rita and Durkin, Malcolm and Wolin, Brian and Chua, Victor and Mondragon-Shem, Ian and Hughes, Taylor and Mason, Nadya and Budakian, Raffi},
abstractNote = {Harnessing the properties of vortices in superconductors is crucial for fundamental science and technological applications; thus, it has been an ongoing goal to locally probe and control vortices. Here, we use a scanning probe technique that enables studies of vortex dynamics in superconducting systems by leveraging the resonant behavior of a raster-scanned, magnetic-tipped cantilever. This experimental setup allows us to image and control vortices, as well as extract key energy scales of the vortex interactions. Applying this technique to lattices of superconductor island arrays on a metal, we obtain a variety of striking spatial patterns that encode information about the energy landscape for vortices in the system. We interpret these patterns in terms of local vortex dynamics and extract the relative strengths of the characteristic energy scales in the system, such as the vortex-magnetic field and vortex-vortex interaction strengths, as well as the vortex chemical potential. We also demonstrate that the relative strengths of the interactions can be tuned and show how these interactions shift with an applied bias. The high degree of tunability and local nature of such vortex imaging and control not only enable new understanding of vortex interactions, but also have potential applications in more complex systems such as those relevant to quantum computing.},
doi = {10.1103/physrevb.103.224526},
journal = {Physical Review. B},
number = 22,
volume = 103,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2021},
month = {Tue Jun 01 00:00:00 EDT 2021}
}

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