The vortex state of FeSe1-xTex superconducting thin films

H. H. Chang; J. Y. Luo; C. T. Wu; F. C. Hsu; T. W. Huang; Phillip Wu; M. K. Wu; M. J. Wang

doi:10.1088/0953-2048/24/10/105011

The vortex state of FeSe1-xTex superconducting thin films

H. H. Chang, J. Y. Luo, C. T. Wu, F. C. Hsu, T. W. Huang, Phillip Wu, M. K. Wu, M. J. Wang

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10 Citations (SciVal)

Abstract

We report the vortex dynamics of tellurium substituted FeSe1-xTex superconducting thin films. The electric field versus current density (E-J) curve for films with low Te substitution is still governed by the thermally activated flux flow model at temperatures as low as 0.5T(C)(offset). In contrast, we clearly observed a vortex liquid-glass transition in films with high Te substitution. The E-J curves of these samples fit nicely to the scaling relations based on the 3D vortex glass theory. Our results reveal an enhancement of the vortex pinning as more Te content is introduced, which probably originates from the excess Fe at the interstitial site.

Original language	English
Journal	Superconductor Science & Technology
Volume	24
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/24/10/105011
Publication status	Published - 2011

Subject classification (UKÄ)

Condensed Matter Physics

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10.1088/0953-2048/24/10/105011

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title = "The vortex state of FeSe1-xTex superconducting thin films",

abstract = "We report the vortex dynamics of tellurium substituted FeSe1-xTex superconducting thin films. The electric field versus current density (E-J) curve for films with low Te substitution is still governed by the thermally activated flux flow model at temperatures as low as 0.5T(C)(offset). In contrast, we clearly observed a vortex liquid-glass transition in films with high Te substitution. The E-J curves of these samples fit nicely to the scaling relations based on the 3D vortex glass theory. Our results reveal an enhancement of the vortex pinning as more Te content is introduced, which probably originates from the excess Fe at the interstitial site.",

author = "Chang, {H. H.} and Luo, {J. Y.} and Wu, {C. T.} and Hsu, {F. C.} and Huang, {T. W.} and Phillip Wu and Wu, {M. K.} and Wang, {M. J.}",

year = "2011",

doi = "10.1088/0953-2048/24/10/105011",

language = "English",

volume = "24",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "IOP Publishing",

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TY - JOUR

T1 - The vortex state of FeSe1-xTex superconducting thin films

AU - Chang, H. H.

AU - Luo, J. Y.

AU - Wu, C. T.

AU - Hsu, F. C.

AU - Huang, T. W.

AU - Wu, Phillip

AU - Wu, M. K.

AU - Wang, M. J.

PY - 2011

Y1 - 2011

N2 - We report the vortex dynamics of tellurium substituted FeSe1-xTex superconducting thin films. The electric field versus current density (E-J) curve for films with low Te substitution is still governed by the thermally activated flux flow model at temperatures as low as 0.5T(C)(offset). In contrast, we clearly observed a vortex liquid-glass transition in films with high Te substitution. The E-J curves of these samples fit nicely to the scaling relations based on the 3D vortex glass theory. Our results reveal an enhancement of the vortex pinning as more Te content is introduced, which probably originates from the excess Fe at the interstitial site.

AB - We report the vortex dynamics of tellurium substituted FeSe1-xTex superconducting thin films. The electric field versus current density (E-J) curve for films with low Te substitution is still governed by the thermally activated flux flow model at temperatures as low as 0.5T(C)(offset). In contrast, we clearly observed a vortex liquid-glass transition in films with high Te substitution. The E-J curves of these samples fit nicely to the scaling relations based on the 3D vortex glass theory. Our results reveal an enhancement of the vortex pinning as more Te content is introduced, which probably originates from the excess Fe at the interstitial site.

U2 - 10.1088/0953-2048/24/10/105011

DO - 10.1088/0953-2048/24/10/105011

M3 - Article

VL - 24

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 10

ER -

The vortex state of FeSe1-xTex superconducting thin films

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