Optical and dc conductivities of cuprates: Spin-fluctuation scattering in the t-J model

Abstract

A microscopic theory of the electrical conductivity $\sigma (\omega )$ within the t-J model is developed. An exact representation for $\sigma (\omega )$ is obtained using the memory-function technique for the relaxation function in terms of the Hubbard operators, and the generalized Drude law is derived. The relaxation rate due to the decay of charge excitations into particle-hole pairs assisted by antiferromagnetic spin fluctuations is calculated in the mode-coupling approximation. Using results for the spectral function of spin excitations calculated previously, the relaxation rate and the optical and dc conductivities are calculated in a broad region of doping and temperatures. The reasonable agreement of the theory with experimental data for cuprates proves the important role of spin-fluctuation scattering in the charge dynamics.

arXiv comment13 pages,15 figures, v.2, publication reference

References in corpus (41)

• Correlated Electrons in High Temperature Superconductors
• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• Electrodynamics of Correlated Electron Materials
• Intense paramagnon excitations in a large family of high-temperature superconductors
• Two Gaps Make a High Temperature Superconductor?
• Electronic Phase Diagram of High-T_c Cuprate Superconductors from a Mapping of the In-Plane Resistivity Curvature
• Strongly Correlated Superconductivity: a plaquette Dynamical mean field theory study
• Strength of Correlations in electron and hole doped cuprates
• Constant effective mass across the phase diagram of high-T${}_c$ cuprates
• Self-consistent self-energy analysis of photoemission data
• Bare electron dispersion from photoemission experiments
• Electrodynamics of the Nodal Metal in Weakly Doped High-$T_c$ Cuprates
• Optical determination of the relation between the electron-boson coupling function and the critical temperature in high T${}_c$ cuprates
• Optical conductivity and the correlation strength of high temperature copper-oxide superconductors
• Charge dynamics of doped holes in high Tc cuprates - A clue from optical conductivity
• On the Relation between Optical Conductivity and Quasiparticle Dynamics: Boson Structures
• The a-axis optical conductivity of detwinned ortho-II YBa_2Cu_3O_6.50
• Doping Dependence of the Redistribution of Optical Spectral Weight in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Optical Weights and Waterfalls in Doped Charge Transfer Insulators: an LDA+DMFTStudy of LSCO
• Temperature dependence of the optical spectral weight in the cuprates: Role of electron correlations
• Inversion techniques for optical conductivity data
• Optical conductivity of the infinite-dimensional Hubbard model
• Effects of energy dependence in the quasiparticle density of states on far-infrared absorption in the pseudogap state
• Electronic spectrum in high-temperature cuprate superconductors
• Optical Conductivity of the t-J model within Cluster Dynamical Mean Field Theory
• Anomalous Spin and Charge Dynamics of the 2D t-J Model at low doping
• Theory of the Optical Conductivity in the Cuprate Superconductors
• Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates
• Optical model-solution to the competition between a pseudogap phase and a Mott-gap phase in high-temperature cuprate superconductors
• Dynamic spin susceptibility in the t-J model
• Spin Dynamics in Cuprates: Optical Conductivity of HgBa2CuO4
• An ARPES view on the high-Tc problem: phonons vs spin-fluctuations
• Spectral functions, Fermi surface and pseudogap in the t-J model
• Dynamic spin susceptibility of superconducting cuprates: A microscopic theory of the magnetic resonance mode
• Polaronic features in the optical properties of the Holstein-t-J model
• Charge dynamics and optical conductivity of the t-J model
• Infrared scattering rate of overdoped Tl${}_2$Ba${}_2$CuO${}_{6+\delta }$
• Optical conductivity in the t-J-Holstein Model
• Temperature dependence of the spectral weight in p- and n-type cuprates: a study of normal state partial gaps and electronic kinetic energy
• Small-q electron-phonon scattering and linear dc resistivity in high-T_c oxides
• Charge correlations in the weakly doped t-J model calculated by projection technique

Cited by in corpus (9)

• Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach
• On the theory of superconductivity in the extended Hubbard model: Spin-fluctuation pairing
• Generalized Drude Scattering rate from the memory function formalism: an independent verification of the Sharapov-Carbotte result
• Spin fluctuations and high-temperature superconductivity in cuprates
• Moment Expansion to the Memory Function for Generalized Drude Scattering rate
• Electrical conductivity of charged particle systems and the Zubarev NSO method
• Memory Function Approach to Correlated Electron Transport: A Comprehensive Review
• Hot electron relaxation in metals within the Götze-Wölfle memory function formalism
• Calculation of generalized spin stiffness constant of strongly correlated doped quantum antiferromagnet on two-dimensional lattice and it's application to effective exchange constant for semi-itinerant systems