The BKT Universality Class in the Presence of Correlated Disorder

The BKT Universality Class in the Presence of Correlated Disorder

The correct detection of the Berezinskii-Kosterlitz-Thouless (BKT) transition in quasi-two-dimensional superconductors still remains a controversial issue. Its main signatures, indeed, are often at odds with the theoretical expectations. In a recent work (Maccari, I.; Benfatto, L.; Castellani, C. Ph...

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Main Authors: Ilaria Maccari, Lara Benfatto, Claudio Castellani
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Condensed Matter
Subjects:
BKT transition
disordered XY model
2D superconductors
Online Access:http://www.mdpi.com/2410-3896/3/1/8
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spelling doaj-e3c55ca0ecaf4c84b0b10181a558f4022020-11-24T21:53:02ZengMDPI AGCondensed Matter2410-38962018-03-0131810.3390/condmat3010008condmat3010008The BKT Universality Class in the Presence of Correlated DisorderIlaria Maccari0Lara Benfatto1Claudio Castellani2ISC-CNR, Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, ItalyISC-CNR, Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, ItalyISC-CNR, Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, ItalyThe correct detection of the Berezinskii-Kosterlitz-Thouless (BKT) transition in quasi-two-dimensional superconductors still remains a controversial issue. Its main signatures, indeed, are often at odds with the theoretical expectations. In a recent work (Maccari, I.; Benfatto, L.; Castellani, C. Phys. Rev. B 2017, 96, 060508), we have shown that the presence of spatially correlated disorder plays a key role in this sense because it is the reason underlying the experimentally-observed smearing of the universal superfluid-density jump. In the present paper we closely investigate the effects of correlated disorder on the BKT transition, specifically addressing the issue of whether or not it changes the BKT universality class.http://www.mdpi.com/2410-3896/3/1/8BKT transitiondisordered XY model2D superconductors
collection DOAJ
language English
format Article
sources DOAJ
author Ilaria Maccari
Lara Benfatto
Claudio Castellani
spellingShingle Ilaria Maccari
Lara Benfatto
Claudio Castellani
The BKT Universality Class in the Presence of Correlated Disorder
Condensed Matter
BKT transition
disordered XY model
2D superconductors
author_facet Ilaria Maccari
Lara Benfatto
Claudio Castellani
author_sort Ilaria Maccari
title The BKT Universality Class in the Presence of Correlated Disorder
title_short The BKT Universality Class in the Presence of Correlated Disorder
title_full The BKT Universality Class in the Presence of Correlated Disorder
title_fullStr The BKT Universality Class in the Presence of Correlated Disorder
title_full_unstemmed The BKT Universality Class in the Presence of Correlated Disorder
title_sort bkt universality class in the presence of correlated disorder
publisher MDPI AG
series Condensed Matter
issn 2410-3896
publishDate 2018-03-01
description The correct detection of the Berezinskii-Kosterlitz-Thouless (BKT) transition in quasi-two-dimensional superconductors still remains a controversial issue. Its main signatures, indeed, are often at odds with the theoretical expectations. In a recent work (Maccari, I.; Benfatto, L.; Castellani, C. Phys. Rev. B 2017, 96, 060508), we have shown that the presence of spatially correlated disorder plays a key role in this sense because it is the reason underlying the experimentally-observed smearing of the universal superfluid-density jump. In the present paper we closely investigate the effects of correlated disorder on the BKT transition, specifically addressing the issue of whether or not it changes the BKT universality class.
topic BKT transition
disordered XY model
2D superconductors
url http://www.mdpi.com/2410-3896/3/1/8
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