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Stripe, gossamer, and glassy phases in systems with strong nonpairwise interactions
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics. Department of Physics, University of Massachusetts, Amherst, MA 01003, United States .
2013 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 88, no 4, 042305- p.Article in journal (Refereed) Published
Abstract [en]

We study structure formation in systems of classical particles in two dimensions with long-range attractive short-range repulsive two-body interactions and repulsive three-body interactions. Stripe, gossamer, and glass phases are found as a result of nonpairwise interaction.

Place, publisher, year, edition, pages
2013. Vol. 88, no 4, 042305- p.
Keyword [en]
Superconductivity, Forces
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-133971DOI: 10.1103/PhysRevE.88.042305ISI: 000326047800007Scopus ID: 2-s2.0-84886029788OAI: oai:DiVA.org:kth-133971DiVA: diva2:664403
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note

QC 20131115

Available from: 2013-11-15 Created: 2013-11-14 Last updated: 2017-12-06Bibliographically approved
In thesis
1. Phase transitions and vortex structures in multicomponent superconductors
Open this publication in new window or tab >>Phase transitions and vortex structures in multicomponent superconductors
2015 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Theoretical aspects of multicomponent superconductivity and systemswith competing interactions are studied using Monte Carlo techniques.Motivated by recent experimental and theoretical results of complex struc-ture formation of vortices in multicomponent systems, possible vortex struc-ture formations due to vortex interactions that are not purely attractive orrepulsive are considered. Vortex structures such as clusters, superclusters,hierarchical structure formation, stripes, gossamer patters, glassy phases, aswell as checkerboard lattices and loops are demonstrated to be possible.The order of the superconducting phase transition is considered for multi-component lattice London superconductors. The phase transition is demon-strated to be either rst-order or continuous depending on the strength of asymmetry-breaking Josephson intercomponent interaction. It is argued thatthe rst-order phase transition is caused by a vortex phase separation due toa uctuation-induced attractive interaction between vortex lines.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2015. 41 p.
Series
TRITA-FYS, ISSN 0280-316X ; 2015:78
Keyword
multicomponent superconductors, superconductivity, phase transitions, monte carlo, vortices, vortex structure formation, competing interactions
National Category
Condensed Matter Physics Physical Sciences
Identifiers
urn:nbn:se:kth:diva-177141 (URN)978-91-7595-758-6 (ISBN)
Presentation
2015-12-07, FB42, AlbaNova universitetscentrum, Roslagstullsbacken 21, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20151117

Available from: 2015-11-17 Created: 2015-11-16 Last updated: 2015-11-17Bibliographically approved

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