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Title: Enhanced pinning for vortices in hyperuniform pinning arrays and emergent hyperuniform vortex configurations with quenched disorder

Abstract

Disordered hyperuniformity is a state of matter exhibiting both isotropic liquid-like properties and crystalline-like properties such as minimal density fluctuations over long distances. Such states arise for jammed particle assemblies and in nonequilibrium systems. An open question is whether the properties of disordered hyperuniformity can be harnessed for technological applications. A major issue for applications of type-II superconductors is preventing the motion or depinning of magnetic vortices in order to achieve high critical currents, so there is great interest in identifying optimal pinning site geometries. Using large-scale simulations, we show that a disordered hyperuniform pinning arrangement produces enhanced vortex pinning compared to an equal number of purely randomly arranged pinning sites, and that the enhancement is robust over a wide parameter range for both short- and long-range vortex-vortex interactions. In disordered hyperuniform arrays, pinning density fluctuations are suppressed, permitting higher pin occupancy and preventing weak links that lead to easy-flow channeling. We also show that in amorphous vortex states on either random or disordered hyperuniform pinning arrays, the vortices themselves exhibit disordered hyperuniformity due to the repulsive nature of the vortex-vortex interactions.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [3];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Wabsh College, Crawfordsville, IN (United States). Dept. of Physics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Pacific Univ., Forest Grove, OR (United States). Dept. of Physics
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1505965
Alternate Identifier(s):
OSTI ID: 1390654
Report Number(s):
LA-UR-16-28507
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
89233218CNA000001; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 9; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats

Le Thien, Quan, Reichhardt, Charles, Reichhardt, Cynthia Jane, and McDermott, Danielle. Enhanced pinning for vortices in hyperuniform pinning arrays and emergent hyperuniform vortex configurations with quenched disorder. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.094516.
Le Thien, Quan, Reichhardt, Charles, Reichhardt, Cynthia Jane, & McDermott, Danielle. Enhanced pinning for vortices in hyperuniform pinning arrays and emergent hyperuniform vortex configurations with quenched disorder. United States. doi:10.1103/PhysRevB.96.094516.
Le Thien, Quan, Reichhardt, Charles, Reichhardt, Cynthia Jane, and McDermott, Danielle. Fri . "Enhanced pinning for vortices in hyperuniform pinning arrays and emergent hyperuniform vortex configurations with quenched disorder". United States. doi:10.1103/PhysRevB.96.094516. https://www.osti.gov/servlets/purl/1505965.
@article{osti_1505965,
title = {Enhanced pinning for vortices in hyperuniform pinning arrays and emergent hyperuniform vortex configurations with quenched disorder},
author = {Le Thien, Quan and Reichhardt, Charles and Reichhardt, Cynthia Jane and McDermott, Danielle},
abstractNote = {Disordered hyperuniformity is a state of matter exhibiting both isotropic liquid-like properties and crystalline-like properties such as minimal density fluctuations over long distances. Such states arise for jammed particle assemblies and in nonequilibrium systems. An open question is whether the properties of disordered hyperuniformity can be harnessed for technological applications. A major issue for applications of type-II superconductors is preventing the motion or depinning of magnetic vortices in order to achieve high critical currents, so there is great interest in identifying optimal pinning site geometries. Using large-scale simulations, we show that a disordered hyperuniform pinning arrangement produces enhanced vortex pinning compared to an equal number of purely randomly arranged pinning sites, and that the enhancement is robust over a wide parameter range for both short- and long-range vortex-vortex interactions. In disordered hyperuniform arrays, pinning density fluctuations are suppressed, permitting higher pin occupancy and preventing weak links that lead to easy-flow channeling. We also show that in amorphous vortex states on either random or disordered hyperuniform pinning arrays, the vortices themselves exhibit disordered hyperuniformity due to the repulsive nature of the vortex-vortex interactions.},
doi = {10.1103/PhysRevB.96.094516},
journal = {Physical Review B},
number = 9,
volume = 96,
place = {United States},
year = {2017},
month = {9}
}

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Cited by: 5 works
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    Works referencing / citing this record:

    Universal hidden order in amorphous cellular geometries
    journal, February 2019