Charge dynamics of Ca_{2-x}Na_{x}CuO_{2}Cl_{2} as a correlated electron system with the ideal tetragonal lattice

Abstract

We report the reflectivity and the resistivity measurement of Ca_{2-x}Na_{x}CuO_{2}Cl_{2} (CNCOC), which has a single-CuO2-plane lattice with no orthorhombic distortion. The doping dependence of the in-plane optical conductivity spectra for CNCOC is qualitatively the same to those of other cuprates, but a slight difference between CNCOC and LSCO, i.e., the absence of the 1.5 eV peak in CNCOC, can be attributed to the smaller charge-stripe instability in CNCOC. The temperature dependence of the optical onductivity spectra of CNCOC has been analyzed both by the two-component model (Drude+Lorentzian) and by the one-component model (extended-Drude analysis). The latter analysis gives a universal trend of the scattering rate Gamma(omega) with doping. It was also found that Gamma(omega) shows a saturation behavior at high frequencies, whose origin is the same as that of resistivity saturation at high temperatures.

arXiv comment8 pages, 11 figures, to be published in Phys. Rev. B

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Cited by in corpus (21)

• Phenomenology of the normal state in-plane transport properties of high-$T_c$ cuprates
• Visualizing the emergence of the pseudogap state and the evolution to superconductivity in a lightly hole-doped Mott insulator
• Visualizing the atomic scale electronic structure of the Ca2CuO2Cl2 Mott insulator
• Exact diagonalization study of optical conductivity in two-dimensional Hubbard model
• Cofermion Theory for Pseudogap Phenomena and Superconducting Mechanism of Underdoped Cuprate Superconductors
• Momentum-Resolved Visualization of Electronic Evolution in Doping a Mott Insulator
• Revealing the Coulomb interaction strength in a cuprate superconductor
• Optical conductivity of doped Mott insulator: the interplay between correlation and electron-phonon interaction
• Surface pinning of fluctuating charge order: an "extraordinary" surface phase transition
• Absence of long-ranged charge order in $\mathrm{N}{\mathrm{a}}_{\mathrm{x}}\mathrm{C}{\mathrm{a}}_{2-\mathrm{x}}\mathrm{Cu}{\mathrm{O}}_2\mathrm{C}{\mathrm{l}}_2$ at x=0.08
• Evidence for Multiple Underlying Fermi Surface and Isotropic Energy Gap in the Cuprate Parent Compound Ca${}_2$CuO${}_2$Cl${}_2$
• Optical response of high-$T_c$ cuprates: possible role of scattering rate saturation and in-plane anisotropy
• Electronic Structure of Doped Lanthanum Cuprates Studied with Resonant Inelastic X-Ray Scattering
• Spin-resolved crossed Andreev reflection in ballistic heterostructures
• On the cuprates' universal waterfall feature: evidence of a momentum-driven crossover
• Universal scaling of c-axis dc conductivity for the underdoped hightemperature cuprate superconductors
• Bulk charge density wave and electron-phonon coupling in superconducting copper oxychlorides
• Energy-Dependent Enhancement of the Electron-Coupling Spectrum of the Underdoped Bi2Sr2CaCu2O8+d Superconductor
• Angular Dependent Spectral-Weight Transfer and Evidence for Symmetry Broken In-Plane Charge Response in Ca${}_{1.9}$Na${}_{0.1}$CuO${}_2$Cl${}_2$
• Universal intrinsic doping behavior of in-plane dc conductivity for hole-doped high-temperature cuprate superconductors
• Ultrafast charge-transfer dynamics in Ca${}_2$CuO${}_2$Cl${}_2$ from time-resolved optical reflectivity