Title
Stable 'antiferromagnetic' vortex lattice imprinted into a type-II superconductor Stable 'antiferromagnetic' vortex lattice imprinted into a type-II superconductor
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
New journal of physics / Institute of Physics; German Physical Society. - Bristol
Volume/pages
14(2012) :10 , 9 p.
ISSN
1367-2630
Article Reference
103021
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In type-II superconductors, where vortices and antivortices tend to annihilate, only a 'ferromagnetic' vortex lattice, with the same orientation of vortex magnetic moments, is usually formed in a homogeneous external magnetic field. Using the time-dependent GinzburgLandau formalism, we demonstrate that a checkerboard vortexantivortex lattice ('antiferromagnetic vortex lattice'), imprinted onto a superconducting film by a periodic array of underlying clockwise and counterclockwise microcoils generating spatially periodic positive and negative magnetic field pulses and then trapped by an array of artificial pinning centers, remains stable even after the imprinting magnetic field pulse is switched off.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/b4dbc6/2675.pdf
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