Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals

We have recently reported that the superconducting transition temperature of FeTe0.5Se0.5 flakes attached onto commercial Scotch tape can be enhanced by about 1-2 K due to a thermal-mismatch induced compressive strain. In this work, we further investigated the Scotch tape effect on structural variat...

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Main Authors: Weike Wang, Xuefei Wang, Lei Zhang, Jiyong Yang, Xuliang Chen, Zhitao Zhang, Mingliang Tian, Zhaorong Yang, Yuheng Zhang
Format: Article
Language:English
Published: AIP Publishing LLC 2016-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4942042
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author Weike Wang
Xuefei Wang
Lei Zhang
Jiyong Yang
Xuliang Chen
Zhitao Zhang
Mingliang Tian
Zhaorong Yang
Yuheng Zhang
author_facet Weike Wang
Xuefei Wang
Lei Zhang
Jiyong Yang
Xuliang Chen
Zhitao Zhang
Mingliang Tian
Zhaorong Yang
Yuheng Zhang
author_sort Weike Wang
collection DOAJ
description We have recently reported that the superconducting transition temperature of FeTe0.5Se0.5 flakes attached onto commercial Scotch tape can be enhanced by about 1-2 K due to a thermal-mismatch induced compressive strain. In this work, we further investigated the Scotch tape effect on structural variation of FeTe0.5Se0.5 and Fe1.05Te flakes by X-ray diffraction measurements. We show that for FeTe0.5Se0.5, the lattice constant c of taped flakes is elongated by about 0.5% at 15 K as compared with bulk crystal. Upon warming from 15 K, the lattice constant c of the taped flakes first levels off then displays negative thermal expansion followed by monotonic increase at temperatures above 100 K. For antiferromagnetic Fe1.05Te, the structural transition around 70 K is remarkably broadened by about 2 K. The present results demonstrate that the Scotch tape is a simple and effective tool to probe structure sensitive physical properties of layered materials.
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spelling doaj.art-3aa42018b9154dddb4476fa389b3b76e2022-12-21T20:04:53ZengAIP Publishing LLCAIP Advances2158-32262016-02-0162025207025207-510.1063/1.4942042029602ADVScotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystalsWeike Wang0Xuefei Wang1Lei Zhang2Jiyong Yang3Xuliang Chen4Zhitao Zhang5Mingliang Tian6Zhaorong Yang7Yuheng Zhang8High Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaKey Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaHigh Magnetic Field Laboratory,Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of ChinaWe have recently reported that the superconducting transition temperature of FeTe0.5Se0.5 flakes attached onto commercial Scotch tape can be enhanced by about 1-2 K due to a thermal-mismatch induced compressive strain. In this work, we further investigated the Scotch tape effect on structural variation of FeTe0.5Se0.5 and Fe1.05Te flakes by X-ray diffraction measurements. We show that for FeTe0.5Se0.5, the lattice constant c of taped flakes is elongated by about 0.5% at 15 K as compared with bulk crystal. Upon warming from 15 K, the lattice constant c of the taped flakes first levels off then displays negative thermal expansion followed by monotonic increase at temperatures above 100 K. For antiferromagnetic Fe1.05Te, the structural transition around 70 K is remarkably broadened by about 2 K. The present results demonstrate that the Scotch tape is a simple and effective tool to probe structure sensitive physical properties of layered materials.http://dx.doi.org/10.1063/1.4942042
spellingShingle Weike Wang
Xuefei Wang
Lei Zhang
Jiyong Yang
Xuliang Chen
Zhitao Zhang
Mingliang Tian
Zhaorong Yang
Yuheng Zhang
Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals
AIP Advances
title Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals
title_full Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals
title_fullStr Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals
title_full_unstemmed Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals
title_short Scotch tape induced strains for structural variation of FeTe0.5Se0.5 and Fe1.05Te single crystals
title_sort scotch tape induced strains for structural variation of fete0 5se0 5 and fe1 05te single crystals
url http://dx.doi.org/10.1063/1.4942042
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