Doping dependent optical properties of Bi2201

Abstract

An experimental study of the in-plane optical conductivity of (Pb${}_x$,Bi${}_{2-x}$)(La${}_y$Sr${}_{2-y}$)CuO${}_{6+\delta }$ (Bi2201) is presented for a broad doping and temperature range. The in-plane conductivity is analyzed within a strong coupling formalism. We address the interrelationship between the optical conductivity ($\sigma (\omega )$), the single particle self energy, and the electron-boson spectral function. We find that the frequency and temperature dependence can be well described within this formalism. We present a universal description of optical, ARPES and tunneling spectra. The full frequency and temperature dependence of the optical spectra and single particle self-energy is shown to result from an electron-boson spectral function, which shows a strong doping dependence and weak temperature dependence.

20 pages, 9 figures. To appear in special focus issue "Superconductors with Exotic Symmetries", New Journal of Physics

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Cited by in corpus (15)

• Electrodynamics of Correlated Electron Materials
• Evidence for a Fermi liquid in the pseudogap phase of high-Tc cuprates
• Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering
• Cuprate superconductors as viewed through a striped lens
• Strong-coupling analysis of scanning tunneling spectra in Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• A unified theory of spin and charge excitations in high-$T_c$ cuprates: Quantitative comparison with experiment and interpretation
• Doping evolution of the optical scattering rate and effective mass of Bi(2)Sr(2-x)La(x)CuO(6)
• The spectral weight of hole doped cuprates across the pseudogap critical point
• Superconducting coherence lengths of hole-doped cuprates obtained from electron-boson spectral density functions
• An extended infrared study of the (p,T) phase diagram of the p-doped Cu-O plane
• Intrinsic temperature-dependent evolutions in the electron-boson spectral density obtained from optical data
• Evolution of electron-boson spectral density in the underdoped region of Bi_2Sr_{2-x}La_xCuO_6
• Electron-boson spectral density functions of cuprates obtained from optical spectra via machine learning
• Correlation between $T_{\mathrm{c}}$ and the Pseudogap Observed in the Optical Spectra of High $T_{\mathrm{c}}$ Superconducting Cuprates
• On properly integrating the electronic Raman and optical infra-red spectra of HTSC cuprate materials