Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)

The emergence of nematic electronic states accompanied by a structural phase transition is a recurring theme in many correlated electron materials, including the high-temperature copper oxide– and iron-based superconductors. We provide evidence for nematic electronic states in the iron-chalcogenide...

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Autores principales: Singh, Udai R., White, Seth C., Schmaus, Stefan, Tsurkan, Vladimir, Loidl, Alois, Deisenhofer, Joachim, Wahl, Peter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2015
Materias:
Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646791/
https://www.ncbi.nlm.nih.gov/pubmed/26601277
http://dx.doi.org/10.1126/sciadv.1500206
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author Singh, Udai R.
White, Seth C.
Schmaus, Stefan
Tsurkan, Vladimir
Loidl, Alois
Deisenhofer, Joachim
Wahl, Peter
author_facet Singh, Udai R.
White, Seth C.
Schmaus, Stefan
Tsurkan, Vladimir
Loidl, Alois
Deisenhofer, Joachim
Wahl, Peter
author_sort Singh, Udai R.
collection PubMed
description The emergence of nematic electronic states accompanied by a structural phase transition is a recurring theme in many correlated electron materials, including the high-temperature copper oxide– and iron-based superconductors. We provide evidence for nematic electronic states in the iron-chalcogenide superconductor FeSe(0.4)Te(0.6) from quasi-particle scattering detected in spectroscopic maps. The symmetry-breaking states persist above T(c) into the normal state. We interpret the scattering patterns by comparison with quasi-particle interference patterns obtained from a tight-binding model, accounting for orbital ordering. The relation to superconductivity and the influence on the coherence length are discussed.
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spelling pubmed-46467912015-11-23 Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6) Singh, Udai R. White, Seth C. Schmaus, Stefan Tsurkan, Vladimir Loidl, Alois Deisenhofer, Joachim Wahl, Peter Sci Adv Research Articles The emergence of nematic electronic states accompanied by a structural phase transition is a recurring theme in many correlated electron materials, including the high-temperature copper oxide– and iron-based superconductors. We provide evidence for nematic electronic states in the iron-chalcogenide superconductor FeSe(0.4)Te(0.6) from quasi-particle scattering detected in spectroscopic maps. The symmetry-breaking states persist above T(c) into the normal state. We interpret the scattering patterns by comparison with quasi-particle interference patterns obtained from a tight-binding model, accounting for orbital ordering. The relation to superconductivity and the influence on the coherence length are discussed. American Association for the Advancement of Science 2015-10-16 /pmc/articles/PMC4646791/ /pubmed/26601277 http://dx.doi.org/10.1126/sciadv.1500206 Text en Copyright © 2015, The Authors http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Singh, Udai R.
White, Seth C.
Schmaus, Stefan
Tsurkan, Vladimir
Loidl, Alois
Deisenhofer, Joachim
Wahl, Peter
Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)
title Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)
title_full Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)
title_fullStr Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)
title_full_unstemmed Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)
title_short Evidence for orbital order and its relation to superconductivity in FeSe(0.4)Te(0.6)
title_sort evidence for orbital order and its relation to superconductivity in fese(0.4)te(0.6)
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646791/
https://www.ncbi.nlm.nih.gov/pubmed/26601277
http://dx.doi.org/10.1126/sciadv.1500206
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