Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe0.914Co0.086)2As2 Crystals

In this study, we measure the in-plane transport properties of high-quality Ba(Fe0.914Co0.086)2As2 single crystals. Signatures of vortex unbinding Berezinskii–Kosterlitz–Thouless (BKT) transition are shown fr...

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Autores principales:	Wen-He Jiao, Xiao-Feng Xu, Hao Jiang, Zhu-An Xu, Qing-Hu Chen, Guang-Han Cao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Berezinskii–Kosterlitz–Thouless transition superconducting transition vortices Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/81dd857a02fd48f386c0228776c8ef09
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spelling	oai:doaj.org-article:81dd857a02fd48f386c0228776c8ef092021-11-11T17:52:00ZPossible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals10.3390/ma142162941996-1944https://doaj.org/article/81dd857a02fd48f386c0228776c8ef092021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6294https://doaj.org/toc/1996-1944In this study, we measure the in-plane transport properties of high-quality Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> single crystals. Signatures of vortex unbinding Berezinskii–Kosterlitz–Thouless (BKT) transition are shown from both the conventional approach and the Fisher–Fisher–Huse dynamic scaling analysis, in which a characteristic Nelson–Kosterlitz jump is demonstrated. We also observe a non-Hall transverse signal exactly at the superconducting transition, which is explained in terms of guided motion of unbound vortices.Wen-He JiaoXiao-Feng XuHao JiangZhu-An XuQing-Hu ChenGuang-Han CaoMDPI AGarticleBerezinskii–Kosterlitz–Thouless transitionsuperconducting transitionvorticesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6294, p 6294 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Berezinskii–Kosterlitz–Thouless transition superconducting transition vortices Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	Berezinskii–Kosterlitz–Thouless transition superconducting transition vortices Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Wen-He Jiao Xiao-Feng Xu Hao Jiang Zhu-An Xu Qing-Hu Chen Guang-Han Cao Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals
description	In this study, we measure the in-plane transport properties of high-quality Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> single crystals. Signatures of vortex unbinding Berezinskii–Kosterlitz–Thouless (BKT) transition are shown from both the conventional approach and the Fisher–Fisher–Huse dynamic scaling analysis, in which a characteristic Nelson–Kosterlitz jump is demonstrated. We also observe a non-Hall transverse signal exactly at the superconducting transition, which is explained in terms of guided motion of unbound vortices.
format	article
author	Wen-He Jiao Xiao-Feng Xu Hao Jiang Zhu-An Xu Qing-Hu Chen Guang-Han Cao
author_facet	Wen-He Jiao Xiao-Feng Xu Hao Jiang Zhu-An Xu Qing-Hu Chen Guang-Han Cao
author_sort	Wen-He Jiao
title	Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals
title_short	Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals
title_full	Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals
title_fullStr	Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals
title_full_unstemmed	Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals
title_sort	possible evidence for berezinskii–kosterlitz–thouless transition in ba(fe<sub>0.914</sub>co<sub>0.086</sub>)<sub>2</sub>as<sub>2</sub> crystals
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/81dd857a02fd48f386c0228776c8ef09
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Possible Evidence for Berezinskii–Kosterlitz–Thouless Transition in Ba(Fe<sub>0.914</sub>Co<sub>0.086</sub>)<sub>2</sub>As<sub>2</sub> Crystals

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