Doping dependence of d-wave bond-charge excitations in electron-doped cuprates

Abstract

Motivated by the recent experiments reporting the doping dependence of the short-range charge order (CO) in electron-doped cuprates, we study the resonant x-ray scattering spectrum from d-wave bond-charge fluctuations obtained in the two-dimensional t-J model. We find that (i) the CO is short-range, (ii) the CO peak is pronounced at low temperature, (iii) the peak intensity increases with decreasing carrier doping $\delta$ down to $\delta \approx$ 0.10 and is substantially suppressed below $\delta \approx$ 0.10 due to strong damping, and (iv) the momentum of the CO decreases monotonically down to $\delta \approx$ 0.10 and goes up below $\delta \approx$ 0.10. These results reasonably capture the major features of the experimental data, and the observed short-range CO can be consistently explained in terms of bond-charge fluctuations with an internal d-wave symmetry.

19 pages, 6 figures; some sections rewritten, appendix added, author name corrected; minor changes

References in corpus (25)

• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Electronic liquid crystal state in the high-temperature superconductor YBCO(6.45)
• Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Distinct Charge Orders in the Planes and Chains of Ortho-III-Ordered YBa${}_2$Cu${}_3$O${}_{6+\delta }$ Superconductors Identified by Resonant Elastic X-ray Scattering
• Thermodynamic evidence for nematic phase transition at the onset of pseudogap in YBa${}_2$Cu${}_3$O${}_y$
• X-ray diffraction observation of charge density wave order at zero magnetic field in ortho-II YBa${}_2$Cu${}_3$O${}_{6.54}$
• Charge ordering in the electron-doped superconductor Nd2-xCexCuO4
• Spin correlations in the electron-doped high-transition-temperature superconductor Nd{2-x}Ce{x}CuO{4+/-delta}
• Instability toward Formation of Quasi-One-Dimensional Fermi Surface in Two-Dimensional t-J Model
• Possible Quasi-One-Dimensional Fermi Surface in La_{2-x}Sr_{x}CuO_4
• Charge Order in the Pseudogap Phase of Cuprate Superconductors
• Synchrotron x-ray scattering study of charge-density-wave order in HgBa${}_2$CuO${}_{4+\delta }$
• Doping dependent charge order correlations in electron-doped cuprates
• Bond order instabilities in a correlated two-dimensional metal
• Direct observation of charge order in underdoped and optimally doped Bi${}_2$(Sr,La)${}_2$CuO${}_{6+\delta }$ by resonant inelastic x-ray scattering
• Plasmon excitations in layered high-Tc cuprates
• Coupling between dynamic magnetic and charge-order correlations in the cuprate superconductor Nd${}_{2-x}$Ce${}_x$CuO${}_4$
• Observation of a dispersive charge mode in hole-doped cuprates using resonant inelastic x-ray scattering at the oxygen K edge
• The nature of effective interaction in cuprate superconductors: a sign-problem-free quantum Monte-Carlo study
• Origin of the high-energy charge excitations observed by resonant inelastic x-ray scattering in cuprate superconductors
• Dual structure in the charge excitation spectrum of electron-doped cuprates
• Coincident onset of charge density wave order at a quantum critical point in underdoped YBCO
• Doping dependence of charge order in electron-doped cuprate superconductors
• Charge-Density-Excitation Spectrum in the t-t'-J-V Model
• Emergence of charge order in a staggered loop-current phase of cuprate high-temperature superconductors

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