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Perspective on the phase diagram of cuprate high-temperature superconductors

Universal scaling laws can guide the understanding of new phenomena, and for cuprate high-temperature superconductivity the influential Uemura relation showed, early on, that the maximum critical temperature of superconductivity correlates with the density of the superfluid measured at low temperatu...

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Autores principales: Rybicki, Damian, Jurkutat, Michael, Reichardt, Steven, Kapusta, Czesław, Haase, Jürgen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4859060/
https://www.ncbi.nlm.nih.gov/pubmed/27150719
http://dx.doi.org/10.1038/ncomms11413
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author Rybicki, Damian
Jurkutat, Michael
Reichardt, Steven
Kapusta, Czesław
Haase, Jürgen
author_facet Rybicki, Damian
Jurkutat, Michael
Reichardt, Steven
Kapusta, Czesław
Haase, Jürgen
author_sort Rybicki, Damian
collection PubMed
description Universal scaling laws can guide the understanding of new phenomena, and for cuprate high-temperature superconductivity the influential Uemura relation showed, early on, that the maximum critical temperature of superconductivity correlates with the density of the superfluid measured at low temperatures. Here we show that the charge content of the bonding orbitals of copper and oxygen in the ubiquitous CuO(2) plane, measured with nuclear magnetic resonance, reproduces this scaling. The charge transfer of the nominal copper hole to planar oxygen sets the maximum critical temperature. A three-dimensional phase diagram in terms of the charge content at copper as well as oxygen is introduced, which has the different cuprate families sorted with respect to their maximum critical temperature. We suggest that the critical temperature could be raised substantially if one were able to synthesize materials that lead to an increased planar oxygen hole content at the expense of that of planar copper.
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spelling pubmed-48590602016-05-23 Perspective on the phase diagram of cuprate high-temperature superconductors Rybicki, Damian Jurkutat, Michael Reichardt, Steven Kapusta, Czesław Haase, Jürgen Nat Commun Article Universal scaling laws can guide the understanding of new phenomena, and for cuprate high-temperature superconductivity the influential Uemura relation showed, early on, that the maximum critical temperature of superconductivity correlates with the density of the superfluid measured at low temperatures. Here we show that the charge content of the bonding orbitals of copper and oxygen in the ubiquitous CuO(2) plane, measured with nuclear magnetic resonance, reproduces this scaling. The charge transfer of the nominal copper hole to planar oxygen sets the maximum critical temperature. A three-dimensional phase diagram in terms of the charge content at copper as well as oxygen is introduced, which has the different cuprate families sorted with respect to their maximum critical temperature. We suggest that the critical temperature could be raised substantially if one were able to synthesize materials that lead to an increased planar oxygen hole content at the expense of that of planar copper. Nature Publishing Group 2016-05-06 /pmc/articles/PMC4859060/ /pubmed/27150719 http://dx.doi.org/10.1038/ncomms11413 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. 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
Rybicki, Damian
Jurkutat, Michael
Reichardt, Steven
Kapusta, Czesław
Haase, Jürgen
Perspective on the phase diagram of cuprate high-temperature superconductors
title Perspective on the phase diagram of cuprate high-temperature superconductors
title_full Perspective on the phase diagram of cuprate high-temperature superconductors
title_fullStr Perspective on the phase diagram of cuprate high-temperature superconductors
title_full_unstemmed Perspective on the phase diagram of cuprate high-temperature superconductors
title_short Perspective on the phase diagram of cuprate high-temperature superconductors
title_sort perspective on the phase diagram of cuprate high-temperature superconductors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4859060/
https://www.ncbi.nlm.nih.gov/pubmed/27150719
http://dx.doi.org/10.1038/ncomms11413
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