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Title: Crossover from two-dimensional to three-dimensional superconducting states in bismuth-based cuprate superconductor

Abstract

To decipher the mechanism of high-temperature superconductivity, it is important to know how the superconducting pairing emerges from the unusual normal states of cuprate superconductors, including the pseudogap, strange metal and anomalous Fermi liquid phases. A long-standing issue is how the superconducting pairing is formed and condensed in the strange metal phase, because this is where the superconducting transition temperature is highest. In this work, we use state-of-the-art high-pressure measurements to report the experimental observation of a pressure-induced crossover from two- to three-dimensional (2D to 3D) superconducting states in optimally doped Bi 2Sr 2CaCu 2O 8+δ bulk superconductor. By analysing the temperature dependence of the resistance, we find that the 2D superconducting transition exhibits a Berezinskii–Kosterlitz–Thouless-like behaviour. The emergence of this 2D superconducting transition provides direct evidence that the strange metal state is predominantly 2D-like. Lastly, this is important for a thorough understanding of the phase diagram of cuprate superconductors.

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [2]; ORCiD logo [3];  [1];  [2];  [4];  [4];  [1];  [5]; ORCiD logo [5]
  1. Chinese Academy of Sciences (CAS), Beijing (China). Institute of Physics, National Laboratory for Condensed Matter Physics
  2. Chinese Academy of Sciences (CAS), Beijing (China). Institute of Physics, National Laboratory for Condensed Matter Physics; Univ. of Chinese Academy of Sciences, Beijing (China)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Shanghai Synchrotron Radiation Facilities (China)
  5. Chinese Academy of Sciences (CAS), Beijing (China). Institute of Physics, National Laboratory for Condensed Matter Physics; Univ. of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Lab., Dongguan, Guangdong (China)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1580248
Report Number(s):
BNL-212484-2019-JAAM
Journal ID: ISSN 1745-2473
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Nature Physics
Additional Journal Information:
Journal Name: Nature Physics; Journal ID: ISSN 1745-2473
Publisher:
Nature Publishing Group (NPG)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Guo, Jing, Zhou, Yazhou, Huang, Cheng, Cai, Shu, Sheng, Yutao, Gu, Genda, Yang, Chongli, Lin, Gongchang, Yang, Ke, Li, Aiguo, Wu, Qi, Xiang, Tao, and Sun, Liling. Crossover from two-dimensional to three-dimensional superconducting states in bismuth-based cuprate superconductor. United States: N. p., 2019. Web. doi:10.1038/s41567-019-0740-0.
Guo, Jing, Zhou, Yazhou, Huang, Cheng, Cai, Shu, Sheng, Yutao, Gu, Genda, Yang, Chongli, Lin, Gongchang, Yang, Ke, Li, Aiguo, Wu, Qi, Xiang, Tao, & Sun, Liling. Crossover from two-dimensional to three-dimensional superconducting states in bismuth-based cuprate superconductor. United States. doi:10.1038/s41567-019-0740-0.
Guo, Jing, Zhou, Yazhou, Huang, Cheng, Cai, Shu, Sheng, Yutao, Gu, Genda, Yang, Chongli, Lin, Gongchang, Yang, Ke, Li, Aiguo, Wu, Qi, Xiang, Tao, and Sun, Liling. Mon . "Crossover from two-dimensional to three-dimensional superconducting states in bismuth-based cuprate superconductor". United States. doi:10.1038/s41567-019-0740-0.
@article{osti_1580248,
title = {Crossover from two-dimensional to three-dimensional superconducting states in bismuth-based cuprate superconductor},
author = {Guo, Jing and Zhou, Yazhou and Huang, Cheng and Cai, Shu and Sheng, Yutao and Gu, Genda and Yang, Chongli and Lin, Gongchang and Yang, Ke and Li, Aiguo and Wu, Qi and Xiang, Tao and Sun, Liling},
abstractNote = {To decipher the mechanism of high-temperature superconductivity, it is important to know how the superconducting pairing emerges from the unusual normal states of cuprate superconductors, including the pseudogap, strange metal and anomalous Fermi liquid phases. A long-standing issue is how the superconducting pairing is formed and condensed in the strange metal phase, because this is where the superconducting transition temperature is highest. In this work, we use state-of-the-art high-pressure measurements to report the experimental observation of a pressure-induced crossover from two- to three-dimensional (2D to 3D) superconducting states in optimally doped Bi2Sr2CaCu2O8+δ bulk superconductor. By analysing the temperature dependence of the resistance, we find that the 2D superconducting transition exhibits a Berezinskii–Kosterlitz–Thouless-like behaviour. The emergence of this 2D superconducting transition provides direct evidence that the strange metal state is predominantly 2D-like. Lastly, this is important for a thorough understanding of the phase diagram of cuprate superconductors.},
doi = {10.1038/s41567-019-0740-0},
journal = {Nature Physics},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

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