Carr, S.T., Fellows, Jonathan M., Hooley, Christopher A., Schmalian, Jorg (2012) Unbinding of Giant Vortices in States of Competing Order. Physical Review Letters: Moving Physics Forward, 109 (15). p. 155703. ISSN 0031-9007. (doi:10.1103/PhysRevLett.109.155703) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:40495)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: http://dx.doi.org/10.1103/PhysRevLett.109.155703 |
Abstract
We consider a two-dimensional system with two order parameters, one with O(2) symmetry and one with O(M), near a point in parameter space where they couple to become a single O(2+M) order. While the O(2) sector supports vortex excitations, these vortices must somehow disappear as the high symmetry point is approached. We develop a variational argument which shows that the size of the vortex cores diverges as 1/???? and the Berezinskii-Kosterlitz-Thouless transition temperature of the O(2) order vanishes as 1/ln(1/?), where ? denotes the distance from the high-symmetry point. Our physical picture is confirmed by a renormalization group analysis which gives further logarithmic corrections, and demonstrates full symmetry restoration within the cores.
Item Type: | Article |
---|---|
DOI/Identification number: | 10.1103/PhysRevLett.109.155703 |
Additional information: | number of additional authors: 3; article number: 155703; |
Uncontrolled keywords: | Physics of Quantum Materials |
Subjects: |
Q Science > QC Physics > QC173.45 Condensed Matter Q Science Q Science > QC Physics |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | Sam Carr |
Date Deposited: | 07 Mar 2014 00:05 UTC |
Last Modified: | 16 Nov 2021 10:15 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/40495 (The current URI for this page, for reference purposes) |
- Export to:
- RefWorks
- EPrints3 XML
- BibTeX
- CSV
- Depositors only (login required):