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Phase diagrams of vortex matter with multi-scale inter-vortex interactions in layered superconductors
KTH, School of Engineering Sciences (SCI), Physics, Statistical Physics.ORCID iD: 0000-0001-7593-4543
2017 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 29, no 3, 035602Article in journal (Refereed) Published
Abstract [en]

It was recently proposed to use the stray magnetic fields of superconducting vortex lattices to trap ultracold atoms for building quantum emulators. This calls for new methods for engineering and manipulating of the vortex states. One of the possible routes utilizes type-1.5 superconducting layered systems with multi-scale inter-vortex interactions. In order to explore the possible vortex states that can be engineered, we present two phase diagrams of phenomenological vortex matter models with multi-scale inter-vortex interactions featuring several attractive and repulsive length scales. The phase diagrams exhibit a plethora of phases, including conventional 2D lattice phases, five stripe phases, dimer, trimer, and tetramer phases, void phases, and stable low-temperature disordered phases. The transitions between these states can be controlled by the value of an applied external field.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2017. Vol. 29, no 3, 035602
Keyword [en]
multi-scale interaction, vortex matter, type 1.5 superconductor, layered superconductor, vortex phases, phase diagram
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-198866DOI: 10.1088/1361-648X/29/3/035602ISI: 000388701200001ScopusID: 2-s2.0-85000608408OAI: diva2:1062100
Swedish Research Council, 642-2013-7837

QC 20170104

Available from: 2017-01-04 Created: 2016-12-22 Last updated: 2017-01-04Bibliographically approved

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Babaev, Egor
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