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Unconventional charge order in a co-doped high-T(c) superconductor

Charge-stripe order has recently been established as an important aspect of cuprate high-T(c) superconductors. However, owing to the complex interplay between competing phases and the influence of disorder, it is unclear how it emerges from the parent high-temperature state. Here we report on the di...

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Detalles Bibliográficos
Autores principales: Pelc, D., Vučković, M., Grafe, H. -J., Baek, S. -H., Požek, M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025527/
https://www.ncbi.nlm.nih.gov/pubmed/27605152
http://dx.doi.org/10.1038/ncomms12775
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author Pelc, D.
Vučković, M.
Grafe, H. -J.
Baek, S. -H.
Požek, M.
author_facet Pelc, D.
Vučković, M.
Grafe, H. -J.
Baek, S. -H.
Požek, M.
author_sort Pelc, D.
collection PubMed
description Charge-stripe order has recently been established as an important aspect of cuprate high-T(c) superconductors. However, owing to the complex interplay between competing phases and the influence of disorder, it is unclear how it emerges from the parent high-temperature state. Here we report on the discovery of an unconventional ordered phase between charge-stripe order and (pseudogapped) metal in the cuprate La(1.8−x)Eu(0.2)Sr(x)CuO(4). We use three complementary experiments—nuclear quadrupole resonance, nonlinear conductivity and specific heat—to demonstrate that the order appears through a sharp phase transition and exists in a dome-shaped region of the phase diagram. Our results imply that the new phase is a state, which preserves translational symmetry: a charge nematic. We thus resolve the process of charge-stripe development in cuprates, show that this nematic phase is distinct from high-temperature pseudogap and establish a link with other strongly correlated electronic materials with prominent nematic order.
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spelling pubmed-50255272016-09-23 Unconventional charge order in a co-doped high-T(c) superconductor Pelc, D. Vučković, M. Grafe, H. -J. Baek, S. -H. Požek, M. Nat Commun Article Charge-stripe order has recently been established as an important aspect of cuprate high-T(c) superconductors. However, owing to the complex interplay between competing phases and the influence of disorder, it is unclear how it emerges from the parent high-temperature state. Here we report on the discovery of an unconventional ordered phase between charge-stripe order and (pseudogapped) metal in the cuprate La(1.8−x)Eu(0.2)Sr(x)CuO(4). We use three complementary experiments—nuclear quadrupole resonance, nonlinear conductivity and specific heat—to demonstrate that the order appears through a sharp phase transition and exists in a dome-shaped region of the phase diagram. Our results imply that the new phase is a state, which preserves translational symmetry: a charge nematic. We thus resolve the process of charge-stripe development in cuprates, show that this nematic phase is distinct from high-temperature pseudogap and establish a link with other strongly correlated electronic materials with prominent nematic order. Nature Publishing Group 2016-09-08 /pmc/articles/PMC5025527/ /pubmed/27605152 http://dx.doi.org/10.1038/ncomms12775 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Pelc, D.
Vučković, M.
Grafe, H. -J.
Baek, S. -H.
Požek, M.
Unconventional charge order in a co-doped high-T(c) superconductor
title Unconventional charge order in a co-doped high-T(c) superconductor
title_full Unconventional charge order in a co-doped high-T(c) superconductor
title_fullStr Unconventional charge order in a co-doped high-T(c) superconductor
title_full_unstemmed Unconventional charge order in a co-doped high-T(c) superconductor
title_short Unconventional charge order in a co-doped high-T(c) superconductor
title_sort unconventional charge order in a co-doped high-t(c) superconductor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025527/
https://www.ncbi.nlm.nih.gov/pubmed/27605152
http://dx.doi.org/10.1038/ncomms12775
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