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

Journal Article · · Physical Review B
 [1];  [2];  [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)
+ Show Author Affiliations

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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1505965
Alternate ID(s):
OSTI ID: 1390654
Report Number(s):
LA-UR--16-28507
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 9 Vol. 96; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

The Quest for High Critical Current in Applied High-Temperature Superconductors journal September 2019
Universal hidden order in amorphous cellular geometries journal February 2019
Targeted evolution of pinning landscapes for large superconducting critical currents journal April 2019
Effect of imperfections on the hyperuniformity of many-body systems journal February 2018
Nonlinear transport, dynamic ordering, and clustering for driven skyrmions on random pinning journal March 2019
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
Universal hidden order in amorphous cellular geometries text January 2019

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