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Title: Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model

Abstract

Introducing nanoparticles into superconducting materials has emerged as an efficient route to enhance their current-carrying capability. We address the problem of optimizing vortex pinning landscape for randomly distributed metallic spherical inclusions using large-scale numerical simulations of time- dependent Ginzburg-Landau equations. We found the size and density of particles for which the highest critical current is realized in a fixed magnetic field. For each particle size and magnetic field, the critical current reaches a maximum value at a certain particle density, which typically corresponds to 15{23% of the total volume being replaced by nonsuperconducting material. For fixed diameter, this optimal particle density increases with the magnetic field. Furthermore, we found that the optimal particle diameter slowly decreases with the magnetic field from 4.5 to 2.5 coherence lengths at a given temperature. This result shows that pinning landscapes have to be designed for specific applications taking into account relevant magnetic field scales.

Authors:
 [1];  [1];  [2];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Mathematics and Computer Science Division
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northern Illinois Univ., DeKalb, IL (United States). Dept. of Physics
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
OSTI Identifier:
1245439
Alternate Identifier(s):
OSTI ID: 1239712
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Koshelev, A. E., Sadovskyy, I. A., Phillips, C. L., and Glatz, A. Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.93.060508.
Koshelev, A. E., Sadovskyy, I. A., Phillips, C. L., & Glatz, A. Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model. United States. doi:10.1103/PhysRevB.93.060508.
Koshelev, A. E., Sadovskyy, I. A., Phillips, C. L., and Glatz, A. Mon . "Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model". United States. doi:10.1103/PhysRevB.93.060508. https://www.osti.gov/servlets/purl/1245439.
@article{osti_1245439,
title = {Optimization of vortex pinning by nanoparticles using simulations of the time-dependent Ginzburg-Landau model},
author = {Koshelev, A. E. and Sadovskyy, I. A. and Phillips, C. L. and Glatz, A.},
abstractNote = {Introducing nanoparticles into superconducting materials has emerged as an efficient route to enhance their current-carrying capability. We address the problem of optimizing vortex pinning landscape for randomly distributed metallic spherical inclusions using large-scale numerical simulations of time- dependent Ginzburg-Landau equations. We found the size and density of particles for which the highest critical current is realized in a fixed magnetic field. For each particle size and magnetic field, the critical current reaches a maximum value at a certain particle density, which typically corresponds to 15{23% of the total volume being replaced by nonsuperconducting material. For fixed diameter, this optimal particle density increases with the magnetic field. Furthermore, we found that the optimal particle diameter slowly decreases with the magnetic field from 4.5 to 2.5 coherence lengths at a given temperature. This result shows that pinning landscapes have to be designed for specific applications taking into account relevant magnetic field scales.},
doi = {10.1103/PhysRevB.93.060508},
journal = {Physical Review B},
number = 6,
volume = 93,
place = {United States},
year = {2016},
month = {2}
}

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Cited by: 8 works
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    Works referencing / citing this record:

    New model of the pinning potential barrier in layered HTc superconductors
    journal, November 2016


    New model of the pinning potential barrier in layered HTc superconductors
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