On the Relation between Optical Conductivity and Quasiparticle Dynamics: Boson Structures

Abstract

An extended Drude form is often used to analyze optical data in terms of an optical scattering rate and renormalized mass corresponding, respectively, to the real and imaginary part of the memory function. We study the relationship between memory function and quasiparticle self energy for an isotropic system. We emphasize particularly boson signatures. We find it useful to introduce a new auxiliary model scattering rate and its Kramers-Kronig transform determined solely from optics which are much closer to the self energy than is the memory function itself in the normal state. In the superconducting state the simplification fails because the quasiparticle density of states acquires an essential energy dependence.

13 Pages, 6 Figures accepted for publication by Phys. Rev. B

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Cited by in corpus (34)

• Doping dependent optical properties of Bi2Sr2CaCu2O8+d
• Bosons in high temperature superconductors: an experimental survey
• The a-axis optical conductivity of detwinned ortho-II YBa_2Cu_3O_6.50
• Inversion techniques for optical conductivity data
• Evidence for a pseudogap in underdoped $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ and $YB{a}_{2}C{u}_3{O}_{6.50}$ from in-plane optical conductivity measurements
• The unusual thickness dependence of superconductivity in $\alpha$-MoGe thin films
• Spin Dynamics in Cuprates: Optical Conductivity of HgBa2CuO4
• Signatures of Fermi surface reconstruction in Raman spectra of underdoped cuprates
• Optical self-energy of superconducting Pb in the THz region
• Non-BCS behavior of optical properties across the cuprate phase diagram
• Electromagnetic properties of impure superconductors with pair-breaking processes
• Dynamical optical conductivity for gapped $\alpha -{\mathcal{T}}_3$ materials with a curved "flat" band
• Signature of pseudogap formation in the density of states of underdoped cuprates
• Effect of electron-phonon coupling on energy and density of states renormalizations of dynamically screened graphene
• Characteristics of oxygen isotope substitutions in the quasiparticle spectrum of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• The electron-boson spectral density function of underdoped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ and YBa${}_2$Cu${}_3$O
• Electron-boson glue function derived from electronic Raman scattering
• Fermi surface arcs and the infrared conductivity of underdoped YBa${}_2$Cu${}_3$O${}_{6.50}$
• Optical Sum Rule in Finite Bands
• Impurity effects on optical response in a finite band electronic system coupled to phonons
• Density of States Modulations from Oxygen Phonons in d-wave Superconductors: Reconciling Angle-Resolved Photoemission Spectroscopy and Scanning Tunneling Microscopy
• Optical and dc conductivities of cuprates: Spin-fluctuation scattering in the t-J model
• Specific heat across the superconducting dome in the cuprates
• Manifestation of pseudogap in ab-plane optical characteristics
• Incoherent mid-infrared charge excitation and the high energy anomaly in the photoemission spectra of cuprates
• Reverse process of usual optical analysis of boson-exchange superconductors: impurity effects on $s$- and $d$-wave superconductors
• Revisiting optical properties of MgB${}_2$ with a high-quality sample prepared by a HPCVD method
• Analysis of optical data using extended Drude model and generalized Allen's formulas
• Correlation between $T_{\mathrm{c}}$ and the Pseudogap Observed in the Optical Spectra of High $T_{\mathrm{c}}$ Superconducting Cuprates
• Optical Properties of Bogoliubov Quasiparticles
• Extended Drude model analysis of superconducting optical spectra of correlated electron systems
• Signatures of superconducting gap inhomogeneities in optical properties
• Electronic structure in underdoped cuprates due to the emergence of a pseudogap
• Local Limit Disorder Characteristics of Superconducting Radio Frequency Cavities