Identification of a nematic pair density wave state in Bi2Sr2CaCu2O8+x
Abstract
Electron-pair density wave (PDW) states are now an intense focus of research in the field of cuprate correlated superconductivity. PDWs exhibit periodically modulating superconductive electron pairing that can be visualized directly using scanned Josephson tunneling microscopy (SJTM). Although from theory, intertwining the d-wave superconducting (DSC) and PDW order parameters allows a plethora of global electron-pair orders to appear, which one actually occurs in the various cuprates is unknown. In this work, we use SJTM to visualize the interplay of PDW and DSC states in Bi2Sr2CaCu2O8+x at a carrier density where the charge density wave modulations are virtually nonexistent. Simultaneous visualization of their amplitudes reveals that the intertwined PDW and DSC are mutually attractive states. Then, by separately imaging the electron-pair density modulations of the two orthogonal PDWs, we discover a robust nematic PDW state. Its spatial arrangement entails Ising domains of opposite nematicity, each consisting primarily of unidirectional and lattice commensurate electron-pair density modulations. Further, we demonstrate by direct imaging that the scattering resonances identifying Zn impurity atom sites occur predominantly within boundaries between these domains. This implies that the nematic PDW state is pinned by Zn atoms, as was recently proposed [Lozano et al., Phys. Rev. B 103, L020502 (2021)].more »
- Authors:
-
- Univ. of Oxford (United Kingdom)
- Univ. of Oxford (United Kingdom); Univ. College Cork (Ireland)
- Cornell Univ., Ithaca, NY (United States)
- National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
- Univ. of Oxford (United Kingdom); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. College Cork (Ireland)
- Univ. of Oxford (United Kingdom); Univ. College Cork (Ireland); Cornell Univ., Ithaca, NY (United States); Max Planck Inst. for the Chemical Physics of Solids, Dresden (Germany)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1880771
- Report Number(s):
- BNL-223240-2022-JAAM
Journal ID: ISSN 0027-8424; TRN: US2307772
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Proceedings of the National Academy of Sciences of the United States of America
- Additional Journal Information:
- Journal Volume: 119; Journal Issue: 31; Journal ID: ISSN 0027-8424
- Publisher:
- National Academy of Sciences
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; cuprate; nematic; pair density wave; vestigial; zinc impurity atom
Citation Formats
Chen, Weijiong, Ren, Wangping, Kennedy, Niall, Hamidian, M. H., Uchida, S., Eisaki, H., Johnson, Peter D., O’Mahony, Shane M., and Davis, J. Séamus. Identification of a nematic pair density wave state in Bi2Sr2CaCu2O8+x. United States: N. p., 2022.
Web. doi:10.1073/pnas.2206481119.
Chen, Weijiong, Ren, Wangping, Kennedy, Niall, Hamidian, M. H., Uchida, S., Eisaki, H., Johnson, Peter D., O’Mahony, Shane M., & Davis, J. Séamus. Identification of a nematic pair density wave state in Bi2Sr2CaCu2O8+x. United States. https://doi.org/10.1073/pnas.2206481119
Chen, Weijiong, Ren, Wangping, Kennedy, Niall, Hamidian, M. H., Uchida, S., Eisaki, H., Johnson, Peter D., O’Mahony, Shane M., and Davis, J. Séamus. Wed .
"Identification of a nematic pair density wave state in Bi2Sr2CaCu2O8+x". United States. https://doi.org/10.1073/pnas.2206481119. https://www.osti.gov/servlets/purl/1880771.
@article{osti_1880771,
title = {Identification of a nematic pair density wave state in Bi2Sr2CaCu2O8+x},
author = {Chen, Weijiong and Ren, Wangping and Kennedy, Niall and Hamidian, M. H. and Uchida, S. and Eisaki, H. and Johnson, Peter D. and O’Mahony, Shane M. and Davis, J. Séamus},
abstractNote = {Electron-pair density wave (PDW) states are now an intense focus of research in the field of cuprate correlated superconductivity. PDWs exhibit periodically modulating superconductive electron pairing that can be visualized directly using scanned Josephson tunneling microscopy (SJTM). Although from theory, intertwining the d-wave superconducting (DSC) and PDW order parameters allows a plethora of global electron-pair orders to appear, which one actually occurs in the various cuprates is unknown. In this work, we use SJTM to visualize the interplay of PDW and DSC states in Bi2Sr2CaCu2O8+x at a carrier density where the charge density wave modulations are virtually nonexistent. Simultaneous visualization of their amplitudes reveals that the intertwined PDW and DSC are mutually attractive states. Then, by separately imaging the electron-pair density modulations of the two orthogonal PDWs, we discover a robust nematic PDW state. Its spatial arrangement entails Ising domains of opposite nematicity, each consisting primarily of unidirectional and lattice commensurate electron-pair density modulations. Further, we demonstrate by direct imaging that the scattering resonances identifying Zn impurity atom sites occur predominantly within boundaries between these domains. This implies that the nematic PDW state is pinned by Zn atoms, as was recently proposed [Lozano et al., Phys. Rev. B 103, L020502 (2021)]. Taken in combination, these data indicate that the PDW in Bi2Sr2CaCu2O8+x is a vestigial nematic pair density wave state [Agterberg et al. Phys. Rev. B 91, 054502 (2015); Wardh and Granath arXiv:2203.08250].},
doi = {10.1073/pnas.2206481119},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 31,
volume = 119,
place = {United States},
year = {Wed Jul 27 00:00:00 EDT 2022},
month = {Wed Jul 27 00:00:00 EDT 2022}
}
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