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Title: Two-Dimensional Superconducting Fluctuations Associated with Charge-Density-Wave Stripes in La 1.87 Sr 0.13 Cu 0.99 Fe 0.01 O 4

Abstract

The presence of a small concentration of in-plane Fe dopants in La1.87Sr0.13Cu0.99Fe0.01O4 is known to enhance stripelike spin and charge density wave (SDW and CDW) order and suppress the superconducting Tc. Here, we show that it also induces highly two-dimensional superconducting correlations that have been argued to be the signatures of a new form of superconducting order, the so-called pair density wave (PDW) order. In addition, using resonant soft x-ray scattering, we find that the two-dimensional superconducting fluctuation is strongly associated with the CDW stripe. In particular, the PDW signature first appears when the correlation length of the CDW stripe grows over eight times the lattice unit (~8 a). These results provide critical conditions for the formation of the PDW order.

Authors:
 [1]; ORCiD logo [1];  [2];  [2];  [2];  [3];  [2]; ORCiD logo [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  2. Tohoku Univ., Sendai (Japan). Inst. for Materials Research
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); SLAC
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1810115
Alternate Identifier(s):
OSTI ID: 1772226; OSTI ID: 1841568
Grant/Contract Number:  
AC02-76SF00515; 16H02125; 16K05460
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 126; Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Huang, H., Lee, S. -J., Ikeda, Y., Taniguchi, T., Takahama, M., Kao, C. -C., Fujita, M., and Lee, J. -S. Two-Dimensional Superconducting Fluctuations Associated with Charge-Density-Wave Stripes in La 1.87 Sr 0.13 Cu 0.99 Fe 0.01 O 4. United States: N. p., 2021. Web. doi:10.1103/physrevlett.126.167001.
Huang, H., Lee, S. -J., Ikeda, Y., Taniguchi, T., Takahama, M., Kao, C. -C., Fujita, M., & Lee, J. -S. Two-Dimensional Superconducting Fluctuations Associated with Charge-Density-Wave Stripes in La 1.87 Sr 0.13 Cu 0.99 Fe 0.01 O 4. United States. https://doi.org/10.1103/physrevlett.126.167001
Huang, H., Lee, S. -J., Ikeda, Y., Taniguchi, T., Takahama, M., Kao, C. -C., Fujita, M., and Lee, J. -S. Wed . "Two-Dimensional Superconducting Fluctuations Associated with Charge-Density-Wave Stripes in La 1.87 Sr 0.13 Cu 0.99 Fe 0.01 O 4". United States. https://doi.org/10.1103/physrevlett.126.167001. https://www.osti.gov/servlets/purl/1810115.
@article{osti_1810115,
title = {Two-Dimensional Superconducting Fluctuations Associated with Charge-Density-Wave Stripes in La 1.87 Sr 0.13 Cu 0.99 Fe 0.01 O 4},
author = {Huang, H. and Lee, S. -J. and Ikeda, Y. and Taniguchi, T. and Takahama, M. and Kao, C. -C. and Fujita, M. and Lee, J. -S.},
abstractNote = {The presence of a small concentration of in-plane Fe dopants in La1.87Sr0.13Cu0.99Fe0.01O4 is known to enhance stripelike spin and charge density wave (SDW and CDW) order and suppress the superconducting Tc. Here, we show that it also induces highly two-dimensional superconducting correlations that have been argued to be the signatures of a new form of superconducting order, the so-called pair density wave (PDW) order. In addition, using resonant soft x-ray scattering, we find that the two-dimensional superconducting fluctuation is strongly associated with the CDW stripe. In particular, the PDW signature first appears when the correlation length of the CDW stripe grows over eight times the lattice unit (~8 a). These results provide critical conditions for the formation of the PDW order.},
doi = {10.1103/physrevlett.126.167001},
journal = {Physical Review Letters},
number = 16,
volume = 126,
place = {United States},
year = {Wed Apr 21 00:00:00 EDT 2021},
month = {Wed Apr 21 00:00:00 EDT 2021}
}

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