Simulation of the vortex dynamics in a real pinning landscape of YBa$_{\mathrm{2}}$Cu$_{\mathrm{3}}$O$_{\mathrm{7-\delta }}$ coated conductors
ORAL
Abstract
We present a critical current analysis of a real high-temperature superconducting (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 YBa$_{\mathrm{2}}$Cu$_{\mathrm{3}}$O$_{\mathrm{7-\delta }}$. 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. Our method demonstrates very good functional and quantitative agreement of the critical current between simulation and experiment, providing a new predictive tool for HTS wires design.
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Authors
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Ivan Sadovskyy
Argonne Natl Lab
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Alexei Koshelev
Argonne National Laboratory, Argonne Natl Lab, Materials Science Division, Argonne National Laboratory
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Andreas Glatz
Argonne National Laboratory, Argonne Natl Lab
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Volkan Ortalan
Purdue University
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Martin Rupich
American Superconductor, American Superconductor Corporation
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Maxime Leroux
Argonne National Laboratory, Argonne Natl Lab