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Title: Parallel magnetic field suppresses dissipation in superconducting nanostrips

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3];  [4];  [2];  [2];  [5];  [6];  [7];  [8]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Notre Dame, Notre Dame, IN (United States); Nanjing Univ., Nanjing (China)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Pennsylvania State Univ., University Park, PA (United States)
  5. Hamad Bin Khalifa Univ., Doha (Qatar)
  6. Univ. Antwerpen, Antwerp (Belgium)
  7. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Illinois, Chicago, IL (United States)
  8. Argonne National Lab. (ANL), Argonne, IL (United States)
+ Show Author Affiliations

The motion of Abrikosov vortices in type-II superconductors results in a finite resistance in the presence of an applied electric current. Elimination or reduction of the resistance via immobilization of vortices is the "holy grail" of superconductivity research. Common wisdom dictates that an increase in the magnetic field escalates the loss of energy since the number of vortices increases. Here we show that this is no longer true if the magnetic field and the current are applied parallel to each other. Our experimental studies on the resistive behavior of a superconducting Mo0.79Ge0.21 nanostrip reveal the emergence of a dissipative state with increasing magnetic field, followed by a pronounced resistance drop, signifying a reentrance to the superconducting state. Large-scale simulations of the 3D time-dependent Ginzburg-Landau model indicate that the intermediate resistive state is due to an unwinding of twisted vortices. When the magnetic field increases, this instability is suppressed due to a better accommodation of the vortex lattice to the pinning configuration. Lastly, our findings show that magnetic field and geometrical confinement can suppress the dissipation induced by vortex motion and thus radically improve the performance of superconducting materials.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); National Science Foundation (NSF); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1408569
Alternate ID(s):
OSTI ID: 1474152
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 114, Issue 48; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (4)

Switchable geometric frustration in an artificial-spin-ice–superconductor heterosystem journal June 2018
Edge effect pinning in mesoscopic superconducting strips with non-uniform distribution of defects journal January 2019
Strong In-Plane Magnetic Field-Induced Reemergent Superconductivity in the van der Waals Heterointerface of NbSe2 and CrCl3 journal October 2020
Time-dependent Ginzburg-Landau simulations of superconducting vortices in three dimensions journal April 2020

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
nanostrips
parallel magnetic field
reentrant superconductivity
vortex