Nematic fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8+δ
Abstract
Establishing the presence and the nature of a quantum critical point in their phase diagram is a central enigma of the high-temperature superconducting cuprates. It could explain their pseudogap and strange metal phases, and ultimately their high superconducting temperatures. Yet, while solid evidences exist in several unconventional superconductors of ubiquitous critical fluctuations associated to a quantum critical point, in the cuprates they remain undetected until now. Here using symmetry-resolved electronic Raman scattering in the cuprate Bi2Sr2CaCu2O8+δ, we report the observation of enhanced electronic nematic fluctuations near the endpoint of the pseudogap phase. While our data hint at the possible presence of an incipient nematic quantum critical point, the doping dependence of the nematic fluctuations deviates significantly from a canonical quantum critical scenario. The observed nematic instability rather appears to be tied to the presence of a van Hove singularity in the band structure.
- Authors:
-
- Univ. de Paris (France)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Service de Physique de lÉtat Condensé, Gif-sur-Yvette cedex (France)
- 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:
- 1583110
- Report Number(s):
- BNL-213529-2020-JAAM
Journal ID: ISSN 2041-1723; TRN: US2101089
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Auvray, N., Loret, B., Benhabib, S., Cazayous, M., Zhong, R. D., Schneeloch, J., Gu, G. D., Forget, A., Colson, D., Paul, I., Sacuto, A., and Gallais, Y. Nematic fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8+δ. United States: N. p., 2019.
Web. doi:10.1038/s41467-019-12940-w.
Auvray, N., Loret, B., Benhabib, S., Cazayous, M., Zhong, R. D., Schneeloch, J., Gu, G. D., Forget, A., Colson, D., Paul, I., Sacuto, A., & Gallais, Y. Nematic fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8+δ. United States. https://doi.org/10.1038/s41467-019-12940-w
Auvray, N., Loret, B., Benhabib, S., Cazayous, M., Zhong, R. D., Schneeloch, J., Gu, G. D., Forget, A., Colson, D., Paul, I., Sacuto, A., and Gallais, Y. Fri .
"Nematic fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8+δ". United States. https://doi.org/10.1038/s41467-019-12940-w. https://www.osti.gov/servlets/purl/1583110.
@article{osti_1583110,
title = {Nematic fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8+δ},
author = {Auvray, N. and Loret, B. and Benhabib, S. and Cazayous, M. and Zhong, R. D. and Schneeloch, J. and Gu, G. D. and Forget, A. and Colson, D. and Paul, I. and Sacuto, A. and Gallais, Y.},
abstractNote = {Establishing the presence and the nature of a quantum critical point in their phase diagram is a central enigma of the high-temperature superconducting cuprates. It could explain their pseudogap and strange metal phases, and ultimately their high superconducting temperatures. Yet, while solid evidences exist in several unconventional superconductors of ubiquitous critical fluctuations associated to a quantum critical point, in the cuprates they remain undetected until now. Here using symmetry-resolved electronic Raman scattering in the cuprate Bi2Sr2CaCu2O8+δ, we report the observation of enhanced electronic nematic fluctuations near the endpoint of the pseudogap phase. While our data hint at the possible presence of an incipient nematic quantum critical point, the doping dependence of the nematic fluctuations deviates significantly from a canonical quantum critical scenario. The observed nematic instability rather appears to be tied to the presence of a van Hove singularity in the band structure.},
doi = {10.1038/s41467-019-12940-w},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {Fri Nov 15 00:00:00 EST 2019},
month = {Fri Nov 15 00:00:00 EST 2019}
}
Web of Science
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Charge Nematicity and Electronic Raman Scattering in Iron-based Superconductors
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Nematicity in stripe ordered cuprates probed via resonant x-ray scattering
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Nematic quantum critical point without magnetism in FeSe1-xSx superconductors
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