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Title: Modification of structural disorder by hydrostatic pressure in the superconducting cuprate YBa 2 Cu 3 O 6.73

Abstract

Here, compelling efforts to improve the critical temperature (Tc) of superconductors have been made through high-pressure application. Understanding the underlying mechanism behind such improvements is critically important; however, much remains unclear. Here we studied ortho-III YBa2Cu3O6.73 (YBCO) using x-ray scattering under hydrostatic pressure (HP) up to ~6.0GPa. We found the reinforced oxygen order of YBCO under HP, revealing an oxygen rearrangement in the Cu-O layer, which evidently shows the charge-transfer phenomenon between the CuO2 plane and Cu-O layer. Concurrently, we also observed no disorder-pinned charge-density-wave signature in CuO2 plane under HP. This indicates that the oxygen rearrangement modifies the quenched disorder state in the CuO2 plane. Using these results, we appropriately explain why pressure condition can achieve higher Tc compared with the optimal Tc under ambient pressure in YBa2Cu3O6+x. As an implication of these results, finally we have discussed that the change in disorder could make it easier for YBa2Cu3O6+x to undergo a transition to the nematic order under an external magnetic field.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [7];  [7];  [7];  [8];  [5];  [5];  [5]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Chinese Academy of Sciences, Shanghai (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Pohang Accelerator Lab., Gyeongbuk (Republic of Korea)
  3. Tohoku Univ., Sendai (Japan)
  4. Kyushu Sangyo Univ., Fukuoka (Japan)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  6. Chinese Academy of Sciences, Shanghai (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  7. Carnegie Inst. of Washington, Argonne, IL (United States)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., Stanford, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1436751
Alternate Identifier(s):
OSTI ID: 1436539
Grant/Contract Number:  
AC02-76SF00515; FG02-99ER45775; NA0001974; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 17; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Huang, H., Jang, H., Fujita, M., Nishizaki, T., Lin, Y., Wang, J., Ying, J., Smith, J. S., Kenney-Benson, C., Shen, G., Mao, W. L., Kao, C. -C., Liu, Y. -J., and Lee, J. -S. Modification of structural disorder by hydrostatic pressure in the superconducting cuprate YBa2Cu3O6.73. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.174508.
Huang, H., Jang, H., Fujita, M., Nishizaki, T., Lin, Y., Wang, J., Ying, J., Smith, J. S., Kenney-Benson, C., Shen, G., Mao, W. L., Kao, C. -C., Liu, Y. -J., & Lee, J. -S. Modification of structural disorder by hydrostatic pressure in the superconducting cuprate YBa2Cu3O6.73. United States. https://doi.org/10.1103/PhysRevB.97.174508
Huang, H., Jang, H., Fujita, M., Nishizaki, T., Lin, Y., Wang, J., Ying, J., Smith, J. S., Kenney-Benson, C., Shen, G., Mao, W. L., Kao, C. -C., Liu, Y. -J., and Lee, J. -S. Wed . "Modification of structural disorder by hydrostatic pressure in the superconducting cuprate YBa2Cu3O6.73". United States. https://doi.org/10.1103/PhysRevB.97.174508. https://www.osti.gov/servlets/purl/1436751.
@article{osti_1436751,
title = {Modification of structural disorder by hydrostatic pressure in the superconducting cuprate YBa2Cu3O6.73},
author = {Huang, H. and Jang, H. and Fujita, M. and Nishizaki, T. and Lin, Y. and Wang, J. and Ying, J. and Smith, J. S. and Kenney-Benson, C. and Shen, G. and Mao, W. L. and Kao, C. -C. and Liu, Y. -J. and Lee, J. -S.},
abstractNote = {Here, compelling efforts to improve the critical temperature (Tc) of superconductors have been made through high-pressure application. Understanding the underlying mechanism behind such improvements is critically important; however, much remains unclear. Here we studied ortho-III YBa2Cu3O6.73 (YBCO) using x-ray scattering under hydrostatic pressure (HP) up to ~6.0GPa. We found the reinforced oxygen order of YBCO under HP, revealing an oxygen rearrangement in the Cu-O layer, which evidently shows the charge-transfer phenomenon between the CuO2 plane and Cu-O layer. Concurrently, we also observed no disorder-pinned charge-density-wave signature in CuO2 plane under HP. This indicates that the oxygen rearrangement modifies the quenched disorder state in the CuO2 plane. Using these results, we appropriately explain why pressure condition can achieve higher Tc compared with the optimal Tc under ambient pressure in YBa2Cu3O6+x. As an implication of these results, finally we have discussed that the change in disorder could make it easier for YBa2Cu3O6+x to undergo a transition to the nematic order under an external magnetic field.},
doi = {10.1103/PhysRevB.97.174508},
journal = {Physical Review B},
number = 17,
volume = 97,
place = {United States},
year = {Wed May 09 00:00:00 EDT 2018},
month = {Wed May 09 00:00:00 EDT 2018}
}

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Works referencing / citing this record:

Peculiarities of pseudogap in Y0.95Pr0.05Ba2Cu3O7−δ single crystals under pressure up to 1.7 GPa
journal, December 2019