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Title: Disorder raises the critical temperature of a cuprate superconductor

Abstract

With the discovery of charge density waves (CDW) in most members of the cuprate high temperature superconductors, the interplay between superconductivity and CDW has become a key point in the debate on the origin of high temperature superconductivity. Some experiments in cuprates point toward a CDW state competing with superconductivity, but others raise the possibility of a CDW-superconductivity intertwined order, or more elusive pair-density wave (PDW). Here we have used proton irradiation to induce disorder in crystals of La 1.875Ba 0.125CuO 4 and observed a striking 50% increase of T c accompanied by a suppression of the CDW. This is in sharp contrast with the behavior expected of a d-wave superconductor for which both magnetic and non-magnetic defects should suppress T c. Our results thus make an unambiguous case for the strong detrimental effect of the CDW on bulk superconductivity in La 1.875Ba 0.125CuO 4. Using tunnel diode oscillator (TDO) measurements, we find indications for potential dynamic layer decoupling in a PDW phase. Our results establish irradiation-induced disorder as a particularly relevant tuning parameter for the many families of super-conductors with coexisting density waves, which we demonstrate on superconductors such as the dichalcogenides and Lu 5Ir 4Si 10.

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [3];  [3];  [5];  [5];  [6];  [2];  [3];  [3];  [3]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Cornell Univ., Ithaca, NY (United States)
  5. Univ. Grenoble Alpes, Grenoble (France)
  6. Western Michigan Univ., Kalamazoo MI (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1506638
Alternate Identifier(s):
OSTI ID: 1514980
Report Number(s):
BNL-211525-2019-JAAM; LA-UR-18-27690
Journal ID: ISSN 0027-8424
Grant/Contract Number:  
SC0012704; 89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; disorder; superconductivity; charge order; pair-density wave; cuprates; Material Science

Citation Formats

Leroux, Maxime, Tranquada, John M., Mishra, Vivek, Ruff, Jacob P. C., Claus, Helmut, Smylie, Matthew P., Opagiste, Christine, Rodiere, Pierre, Kayani, Asghar, Gu, G. D., Kwok, Wai -Kwong, Islam, Zahirul, and Welp, Ulrich. Disorder raises the critical temperature of a cuprate superconductor. United States: N. p., 2019. Web. doi:10.1073/pnas.1817134116.
Leroux, Maxime, Tranquada, John M., Mishra, Vivek, Ruff, Jacob P. C., Claus, Helmut, Smylie, Matthew P., Opagiste, Christine, Rodiere, Pierre, Kayani, Asghar, Gu, G. D., Kwok, Wai -Kwong, Islam, Zahirul, & Welp, Ulrich. Disorder raises the critical temperature of a cuprate superconductor. United States. doi:10.1073/pnas.1817134116.
Leroux, Maxime, Tranquada, John M., Mishra, Vivek, Ruff, Jacob P. C., Claus, Helmut, Smylie, Matthew P., Opagiste, Christine, Rodiere, Pierre, Kayani, Asghar, Gu, G. D., Kwok, Wai -Kwong, Islam, Zahirul, and Welp, Ulrich. Mon . "Disorder raises the critical temperature of a cuprate superconductor". United States. doi:10.1073/pnas.1817134116.
@article{osti_1506638,
title = {Disorder raises the critical temperature of a cuprate superconductor},
author = {Leroux, Maxime and Tranquada, John M. and Mishra, Vivek and Ruff, Jacob P. C. and Claus, Helmut and Smylie, Matthew P. and Opagiste, Christine and Rodiere, Pierre and Kayani, Asghar and Gu, G. D. and Kwok, Wai -Kwong and Islam, Zahirul and Welp, Ulrich},
abstractNote = {With the discovery of charge density waves (CDW) in most members of the cuprate high temperature superconductors, the interplay between superconductivity and CDW has become a key point in the debate on the origin of high temperature superconductivity. Some experiments in cuprates point toward a CDW state competing with superconductivity, but others raise the possibility of a CDW-superconductivity intertwined order, or more elusive pair-density wave (PDW). Here we have used proton irradiation to induce disorder in crystals of La1.875Ba0.125CuO4 and observed a striking 50% increase of Tc accompanied by a suppression of the CDW. This is in sharp contrast with the behavior expected of a d-wave superconductor for which both magnetic and non-magnetic defects should suppress Tc. Our results thus make an unambiguous case for the strong detrimental effect of the CDW on bulk superconductivity in La1.875Ba0.125CuO4. Using tunnel diode oscillator (TDO) measurements, we find indications for potential dynamic layer decoupling in a PDW phase. Our results establish irradiation-induced disorder as a particularly relevant tuning parameter for the many families of super-conductors with coexisting density waves, which we demonstrate on superconductors such as the dichalcogenides and Lu5Ir4Si10.},
doi = {10.1073/pnas.1817134116},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {5}
}

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Works referenced in this record:

Doubling the critical current density of high temperature superconducting coated conductors through proton irradiation
journal, September 2013

  • Jia, Y.; LeRoux, M.; Miller, D. J.
  • Applied Physics Letters, Vol. 103, Issue 12, Article No. 122601
  • DOI: 10.1063/1.4821440