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Title: Simulation of the Vortex Dynamics in a Real Pinning Landscape of YBa 2 Cu 3 O 7 - δ Coated Conductors

Journal Article · · Physical Review Applied
 [1];  [1];  [2];  [3];  [4];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
  3. Purdue Univ., West Lafayette, IN (United States)
  4. American Superconductor Corporation, Westborough, MA (United States)

The ability of high-temperature superconductors (HTSs) to carry very large currents with almost no dissipation makes them irreplaceable for high-power applications. The development and further improvement of HTS-based cables require an in-depth understanding of the superconducting vortex dynamics in the presence of complex pinning landscapes. We present a critical current analysis of a real HTS sample in a magnetic field by combining state-of-the-art large-scale Ginzburg-Landau simulations with reconstructive three-dimensional scanning-transmission-electron-microscopy tomography of the pinning landscape in Dy-doped YBa2Cu3O7-δ. This methodology provides a unique look at the vortex dynamics in the presence of a complex pinning landscape responsible for the high-current-carrying-capacity characteristic of commercial HTS wires. Lastly, our method demonstrates very good functional and quantitative agreement of the critical current between simulation and experiment, providing a new predictive tool for HTS wire designs.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; AC02-98CH1088
OSTI ID:
1248739
Alternate ID(s):
OSTI ID: 1236287
Journal Information:
Physical Review Applied, Vol. 5, Issue 1; ISSN 2331-7019
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

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Cited By (13)

The Quest for High Critical Current in Applied High-Temperature Superconductors journal September 2019
Edge effect pinning in mesoscopic superconducting strips with non-uniform distribution of defects journal January 2019
Targeted evolution of pinning landscapes for large superconducting critical currents journal April 2019
Vortices in high-performance high-temperature superconductors journal September 2016
Strong-pinning regimes by spherical inclusions in anisotropic type-II superconductors journal November 2017
Dynamical regimes of vortex flow in type-II superconductors with parallel twin boundaries journal November 2018
Neutron stars in the laboratory journal April 2017
Dynamical regimes of vortex flow in type-II superconductors with parallel twin boundaries text January 2019
Neutron Stars in the Laboratory text January 2016
Strong-pinning regimes by spherical inclusions in anisotropic type-II superconductors text January 2017
Dynamical regimes of vortex flow in type-II superconductors with parallel twin boundaries text January 2017
Targeted evolution of pinning landscapes for large superconducting critical currents text January 2019
The quest for high critical current in applied high-temperature superconductors text January 2019

Figures / Tables (3)


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