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Nonlinear inductive response of pinned superconducting vortices in artificial pinning sites

Journal Article · · Physical Review Applied
 [1];  [2];  [3]
  1. Northwestern Univ., Evanston, IL (United States); King Fahd University of Petroleum and Minerals, Dhahran (Saudi Arabia)
  2. Argonne National Laboratory (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States)
Using the time dependent Ginzburg-Landau equations, we simulate the inductive responses of a variety of thin-film systems containing patterned antidots with different sizes and shapes. The results for all shapes show that the kinetic inductance diverges as the applied current approaches a critical current that is below the BCS depairing current. In conclusion, exploiting the similarity of the observed current-voltage behavior to that of Josephson junctions, we obtain an empirical equation that well fits the inductivity curve as a function of the applied current.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2569938
Journal Information:
Physical Review Applied, Journal Name: Physical Review Applied Journal Issue: 5 Vol. 21; ISSN 2331-7019
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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