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The vortex state of FeSe1-xTex superconducting thin films

Chang, H. H.; Luo, J. Y.; Wu, C. T.; Hsu, F. C.; Huang, T. W.; Wu, Phillip LU ; Wu, M. K. and Wang, M. J. (2011) In Superconductor Science & Technology 24(10).
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Superconductor Science & Technology
volume
24
issue
10
publisher
IOP Publishing
external identifiers
  • wos:000295156700011
  • scopus:80053155725
ISSN
0953-2048
DOI
10.1088/0953-2048/24/10/105011
language
English
LU publication?
yes
id
9726b7ac-be1d-47b3-be71-8d584eec91e6 (old id 2179754)
date added to LUP
2011-10-25 11:39:43
date last changed
2017-01-15 03:47:51
@article{9726b7ac-be1d-47b3-be71-8d584eec91e6,
  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 Wu, Phillip and Wu, M. K. and Wang, M. J.},
  issn         = {0953-2048},
  language     = {eng},
  number       = {10},
  publisher    = {IOP Publishing},
  series       = {Superconductor Science & Technology},
  title        = {The vortex state of FeSe1-xTex superconducting thin films},
  url          = {http://dx.doi.org/10.1088/0953-2048/24/10/105011},
  volume       = {24},
  year         = {2011},
}