Thickness Dependence of Superconductivity in Layered Topological Superconductor β-PdBi2

We report a systematic study on the thickness-dependent superconductivity and transport properties in exfoliated layered topological superconductor β-PdBi2. The superconducting transition temperature Tc is found to d...

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Autores principales:	Huijie Li, Huanhuan Wang, Wenshuai Gao, Zheng Chen, Yuyan Han, Xiangde Zhu, Mingliang Tian
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	topological superconductor nanoflakes PdBi<sub>2</sub> transport property Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/fbe54e69736641268fdcb73cb1475a23
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spelling	oai:doaj.org-article:fbe54e69736641268fdcb73cb1475a232021-11-25T18:30:06ZThickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>10.3390/nano111128262079-4991https://doaj.org/article/fbe54e69736641268fdcb73cb1475a232021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2826https://doaj.org/toc/2079-4991We report a systematic study on the thickness-dependent superconductivity and transport properties in exfoliated layered topological superconductor <i>β</i>-PdBi<sub>2</sub>. The superconducting transition temperature <i>T</i><sub>c</sub> is found to decrease with the decreasing thickness. Below a critical thickness of 45 nm, the superconductivity is suppressed, but followed by an abrupt resistance jump near <i>T</i><sub>c</sub>, which is in opposite to the behavior in a superconductor. We attribute suppressed <i>T</i><sub>c</sub> to the enhanced disorder as the thickness decreases. The possible physical mechanisms were discussed for the origination of sharply increased resistance in thinner <i>β</i>-PdBi<sub>2</sub> samples.Huijie LiHuanhuan WangWenshuai GaoZheng ChenYuyan HanXiangde ZhuMingliang TianMDPI AGarticletopological superconductornanoflakesPdBi<sub>2</sub>transport propertyChemistryQD1-999ENNanomaterials, Vol 11, Iss 2826, p 2826 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	topological superconductor nanoflakes PdBi<sub>2</sub> transport property Chemistry QD1-999
spellingShingle	topological superconductor nanoflakes PdBi<sub>2</sub> transport property Chemistry QD1-999 Huijie Li Huanhuan Wang Wenshuai Gao Zheng Chen Yuyan Han Xiangde Zhu Mingliang Tian Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>
description	We report a systematic study on the thickness-dependent superconductivity and transport properties in exfoliated layered topological superconductor <i>β</i>-PdBi<sub>2</sub>. The superconducting transition temperature <i>T</i><sub>c</sub> is found to decrease with the decreasing thickness. Below a critical thickness of 45 nm, the superconductivity is suppressed, but followed by an abrupt resistance jump near <i>T</i><sub>c</sub>, which is in opposite to the behavior in a superconductor. We attribute suppressed <i>T</i><sub>c</sub> to the enhanced disorder as the thickness decreases. The possible physical mechanisms were discussed for the origination of sharply increased resistance in thinner <i>β</i>-PdBi<sub>2</sub> samples.
format	article
author	Huijie Li Huanhuan Wang Wenshuai Gao Zheng Chen Yuyan Han Xiangde Zhu Mingliang Tian
author_facet	Huijie Li Huanhuan Wang Wenshuai Gao Zheng Chen Yuyan Han Xiangde Zhu Mingliang Tian
author_sort	Huijie Li
title	Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>
title_short	Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>
title_full	Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>
title_fullStr	Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>
title_full_unstemmed	Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>
title_sort	thickness dependence of superconductivity in layered topological superconductor <i>β</i>-pdbi<sub>2</sub>
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/fbe54e69736641268fdcb73cb1475a23
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Thickness Dependence of Superconductivity in Layered Topological Superconductor <i>β</i>-PdBi<sub>2</sub>

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