Anisotropy of the optical conductivity of high-T-c cuprates

Article

关键词: HIGH-TEMPERATURE SUPERCONDUCTORS;    NORMAL-STATE;    CHARGE DYNAMICS;    ELECTRODYNAMICS;    CRYSTALS;    INPLANE;    GAP;   

DOI  :  10.1103/PhysRevB.60.R765

来源: SCIE

【 摘 要 】

The optical conductivity along (sigma(xx)) and perpendicular (sigma(zz)) to the planes is calculated assuming strong k(parallel to) dependence of the scattering rate and the c-axis hopping parameter. The closed analytical expressions for sigma(xx)(omega) and sigma(zz)(omega) are shown to be integrable at low and high frequencies. A large and qualitatively different frequency dependence for both polarizations follows directly from the model. The expression for sigma(xx)(omega) has an effective scattering rate proportional to frequency, and can be easily generalized to provide a simple analytical expression, which may replace the Drude formula in the case of non-Fermi liquids.

【 授权许可】

Free