Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session T43: Disordered Hyperuniform Materials: Discovery and Design
11:30 AM–2:30 PM,
Thursday, March 17, 2022
Room: McCormick Place W-375B
Sponsoring
Units:
DCOMP DSOFT DCMP
Chair: Houlong Zhuang, Arizona State University
Abstract: T43.00003 : Hyperuniform vortex patterns at the surface of type-II superconductors
12:42 PM–1:18 PM
Presenter:
Yanina Fasano
(Centro Atómico Bariloche and Instituto Balseiro)
Author:
Yanina Fasano
(Centro Atómico Bariloche and Instituto Balseiro)
density fluctuations are attracting attention due to their unique
physical properties. In these systems, the density of constituents
is homogeneous at large scales, as in a crystal, although they can
be disordered like a liquid. Hyperuniformity might be affected by
the disorder unavoidably present in the host medium where
constituents are nucleated. We use vortex matter in superconductors
as a model elastic system to study how planar disorder impacts the
otherwise hyperuniform structure nucleated in samples with weak
point disorder. Planes of defects suppress hyperuniformity in an
anisotropic fashion: While in the transverse direction to defects
the long-wavelength density fluctuations are non-vanishing, in the
longitudinal direction they are smaller and the system can
eventually recover hyperuniformity for sufficiently thick samples.
Our findings stress the need of considering the nature of disorder
and thickness-dependent dimensional crossovers in the search for
novel hyperuniform materials.
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