Orbital symmetries of charge density wave order in YBa 2 Cu 3 O 6+ x
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sciadv.aay0345.pdf
Description
Published version
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723.65 KB
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Checksum (MD5)
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Author(s)
McMahon, Christopher
Achkar, AJ
da Silva Neto, EH
Djianto, I
Menard, J
He, F
Sutarto, R
Comin, R
Liang, Ruixing
Bonn, DA
Date Issued
2020
Journal
Science Advances
Publisher
American Association for the Advancement of Science (AAAS)
Citation
McMahon, Christopher, Achkar, AJ, da Silva Neto, EH, Djianto, I, Menard, J et al. 2020. "Orbital symmetries of charge density wave order in YBa 2 Cu 3 O 6+ x." Science Advances, 6 (45).
Version
Final published version
Abstract
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). Charge density wave (CDW) order has been shown to compete and coexist with superconductivity in underdoped cuprates. Theoretical proposals for the CDW order include an unconventional d-symmetry form factor CDW, evidence for which has emerged from measurements, including resonant soft x-ray scattering (RSXS) in YBa2Cu3O6+x (YBCO). Here, we revisit RSXS measurements of the CDW symmetry in YBCO, using a variation in the measurement geometry to provide enhanced sensitivity to orbital symmetry. We show that the (0 0.31 L) CDW peak measured at the Cu L edge is dominated by an s form factor rather than a d form factor as was reported previously. In addition, by measuring both (0.31 0 L) and (0 0.31 L) peaks, we identify a pronounced difference in the orbital symmetry of the CDW order along the a and b axes, with the CDW along the a axis exhibiting orbital order in addition to charge order.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution NonCommercial License 4.0
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DOI of Published Version
https://doi.org/10.1126/SCIADV.AAY0345
