Various techniques have been applied to visualize superconducting vortices, providing clues to their electromagnetic response. Here, we present a wide-field, quantitative imaging of the stray field of the vortices in a superconducting thin film using perfectly aligned diamond quantum sensors. Our analysis, which mitigates the influence of the sensor inhomogeneities, visualizes the magnetic flux of single vortices in YBa2Cu3O7−δ with an accuracy of ±10%. The obtained vortex shape is consistent with the theoretical model, and penetration depth and its temperature dependence agree with previous studies, proving our technique's accuracy and broad applicability. This wide-field imaging, which in principle works even under extreme conditions, allows the characterization of various superconductors.
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11 September 2023
Research Article|
September 15 2023
Wide-field quantitative magnetic imaging of superconducting vortices using perfectly aligned quantum sensors
Shunsuke Nishimura
;
Shunsuke Nishimura
a)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing)
1
Department of Physics, The University of Tokyo
, Bunkyo-ku, Tokyo 113-0033, Japan
a)Authors to whom correspondence should be addressed: shunsuke.nishimura@phys.s.u-tokyo.ac.jp and kensuke@phys.s.u-tokyo.ac.jp
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Taku Kobayashi;
Taku Kobayashi
(Data curation, Formal analysis, Investigation, Methodology, Software)
1
Department of Physics, The University of Tokyo
, Bunkyo-ku, Tokyo 113-0033, Japan
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Daichi Sasaki
;
Daichi Sasaki
(Data curation, Formal analysis, Investigation, Methodology, Visualization)
1
Department of Physics, The University of Tokyo
, Bunkyo-ku, Tokyo 113-0033, Japan
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Takeyuki Tsuji
;
Takeyuki Tsuji
(Data curation, Investigation, Methodology, Resources)
2
Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Institute of Technology
, Meguro, Tokyo 152-8552, Japan
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Takayuki Iwasaki
;
Takayuki Iwasaki
(Funding acquisition, Investigation, Resources, Supervision, Writing – review & editing)
2
Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Institute of Technology
, Meguro, Tokyo 152-8552, Japan
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Mutsuko Hatano
;
Mutsuko Hatano
(Funding acquisition, Project administration, Resources, Supervision)
2
Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Institute of Technology
, Meguro, Tokyo 152-8552, Japan
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Kento Sasaki
;
Kento Sasaki
(Conceptualization, Investigation, Methodology, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Department of Physics, The University of Tokyo
, Bunkyo-ku, Tokyo 113-0033, Japan
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Kensuke Kobayashi
Kensuke Kobayashi
a)
(Conceptualization, Project administration, Supervision, Validation, Writing – original draft, Writing – review & editing)
1
Department of Physics, The University of Tokyo
, Bunkyo-ku, Tokyo 113-0033, Japan
3
Institute for Physics of Intelligence, The University of Tokyo
, Bunkyo-ku, Tokyo 113-0033, Japan
4
Trans-scale Quantum Science Institute, The University of Tokyo
, Bunkyo-ku, Tokyo, 113-0033, Japan
a)Authors to whom correspondence should be addressed: shunsuke.nishimura@phys.s.u-tokyo.ac.jp and kensuke@phys.s.u-tokyo.ac.jp
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a)Authors to whom correspondence should be addressed: shunsuke.nishimura@phys.s.u-tokyo.ac.jp and kensuke@phys.s.u-tokyo.ac.jp
Appl. Phys. Lett. 123, 112603 (2023)
Article history
Received:
July 26 2023
Accepted:
August 27 2023
Citation
Shunsuke Nishimura, Taku Kobayashi, Daichi Sasaki, Takeyuki Tsuji, Takayuki Iwasaki, Mutsuko Hatano, Kento Sasaki, Kensuke Kobayashi; Wide-field quantitative magnetic imaging of superconducting vortices using perfectly aligned quantum sensors. Appl. Phys. Lett. 11 September 2023; 123 (11): 112603. https://doi.org/10.1063/5.0169521
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