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Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)

The cuprate high-temperature superconductors exhibit many unexplained electronic phases, but the superconductivity at high doping is often believed to be governed by conventional mean-field Bardeen–Cooper–Schrieffer theory(1). However, it was shown that the superfluid density vanishes when the trans...

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Autores principales: Tromp, Willem O., Benschop, Tjerk, Ge, Jian-Feng, Battisti, Irene, Bastiaans, Koen M., Chatzopoulos, Damianos, Vervloet, Amber H. M., Smit, Steef, van Heumen, Erik, Golden, Mark S., Huang, Yinkai, Kondo, Takeshi, Takeuchi, Tsunehiro, Yin, Yi, Hoffman, Jennifer E., Sulangi, Miguel Antonio, Zaanen, Jan, Allan, Milan P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10234808/
https://www.ncbi.nlm.nih.gov/pubmed/36879002
http://dx.doi.org/10.1038/s41563-023-01497-1
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author Tromp, Willem O.
Benschop, Tjerk
Ge, Jian-Feng
Battisti, Irene
Bastiaans, Koen M.
Chatzopoulos, Damianos
Vervloet, Amber H. M.
Smit, Steef
van Heumen, Erik
Golden, Mark S.
Huang, Yinkai
Kondo, Takeshi
Takeuchi, Tsunehiro
Yin, Yi
Hoffman, Jennifer E.
Sulangi, Miguel Antonio
Zaanen, Jan
Allan, Milan P.
author_facet Tromp, Willem O.
Benschop, Tjerk
Ge, Jian-Feng
Battisti, Irene
Bastiaans, Koen M.
Chatzopoulos, Damianos
Vervloet, Amber H. M.
Smit, Steef
van Heumen, Erik
Golden, Mark S.
Huang, Yinkai
Kondo, Takeshi
Takeuchi, Tsunehiro
Yin, Yi
Hoffman, Jennifer E.
Sulangi, Miguel Antonio
Zaanen, Jan
Allan, Milan P.
author_sort Tromp, Willem O.
collection PubMed
description The cuprate high-temperature superconductors exhibit many unexplained electronic phases, but the superconductivity at high doping is often believed to be governed by conventional mean-field Bardeen–Cooper–Schrieffer theory(1). However, it was shown that the superfluid density vanishes when the transition temperature goes to zero(2,3), in contradiction to expectations from Bardeen–Cooper–Schrieffer theory. Our scanning tunnelling spectroscopy measurements in the overdoped regime of the (Pb,Bi)(2)Sr(2)CuO(6+δ) high-temperature superconductor show that this is due to the emergence of nanoscale superconducting puddles in a metallic matrix(4,5). Our measurements further reveal that this puddling is driven by gap filling instead of gap closing. The important implication is that it is not a diminishing pairing interaction that causes the breakdown of superconductivity. Unexpectedly, the measured gap-to-filling correlation also reveals that pair breaking by disorder does not play a dominant role and that the mechanism of superconductivity in overdoped cuprate superconductors is qualitatively different from conventional mean-field theory.
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spelling pubmed-102348082023-06-03 Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ) Tromp, Willem O. Benschop, Tjerk Ge, Jian-Feng Battisti, Irene Bastiaans, Koen M. Chatzopoulos, Damianos Vervloet, Amber H. M. Smit, Steef van Heumen, Erik Golden, Mark S. Huang, Yinkai Kondo, Takeshi Takeuchi, Tsunehiro Yin, Yi Hoffman, Jennifer E. Sulangi, Miguel Antonio Zaanen, Jan Allan, Milan P. Nat Mater Letter The cuprate high-temperature superconductors exhibit many unexplained electronic phases, but the superconductivity at high doping is often believed to be governed by conventional mean-field Bardeen–Cooper–Schrieffer theory(1). However, it was shown that the superfluid density vanishes when the transition temperature goes to zero(2,3), in contradiction to expectations from Bardeen–Cooper–Schrieffer theory. Our scanning tunnelling spectroscopy measurements in the overdoped regime of the (Pb,Bi)(2)Sr(2)CuO(6+δ) high-temperature superconductor show that this is due to the emergence of nanoscale superconducting puddles in a metallic matrix(4,5). Our measurements further reveal that this puddling is driven by gap filling instead of gap closing. The important implication is that it is not a diminishing pairing interaction that causes the breakdown of superconductivity. Unexpectedly, the measured gap-to-filling correlation also reveals that pair breaking by disorder does not play a dominant role and that the mechanism of superconductivity in overdoped cuprate superconductors is qualitatively different from conventional mean-field theory. Nature Publishing Group UK 2023-03-06 2023 /pmc/articles/PMC10234808/ /pubmed/36879002 http://dx.doi.org/10.1038/s41563-023-01497-1 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Letter
Tromp, Willem O.
Benschop, Tjerk
Ge, Jian-Feng
Battisti, Irene
Bastiaans, Koen M.
Chatzopoulos, Damianos
Vervloet, Amber H. M.
Smit, Steef
van Heumen, Erik
Golden, Mark S.
Huang, Yinkai
Kondo, Takeshi
Takeuchi, Tsunehiro
Yin, Yi
Hoffman, Jennifer E.
Sulangi, Miguel Antonio
Zaanen, Jan
Allan, Milan P.
Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)
title Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)
title_full Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)
title_fullStr Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)
title_full_unstemmed Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)
title_short Puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (Pb,Bi)(2)Sr(2)CuO(6+δ)
title_sort puddle formation and persistent gaps across the non-mean-field breakdown of superconductivity in overdoped (pb,bi)(2)sr(2)cuo(6+δ)
topic Letter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10234808/
https://www.ncbi.nlm.nih.gov/pubmed/36879002
http://dx.doi.org/10.1038/s41563-023-01497-1
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