Quasiparticles in high-temperature superconductors: Consistency of angle-resolved photoemission and optical conductivity

Article

关键词: T-C SUPERCONDUCTORS;    BI2SR2CACU2O8+DELTA;    STATE;    ANISOTROPY;    SCATTERING;    LIQUID;   

DOI  :  10.1103/PhysRevB.67.214517

来源: SCIE

【 摘 要 】

The consistency of angle-resolved photoemission and optical conductivity experiments on high-temperature superconductors is examined. In the limit (apparently consistent with angle-resolved photoemission data) of an electron self-energy with a weak momentum dependence and a strong frequency dependence formulas are derived which directly related quantities measured in the two experiments. Application of the formuals to optimally and overdoped Bi2Ca2SrCu2O8+delta shows that the total self-energy inferred from photoemission measurements cannot be interpreted as a transport scattering rate (in agreement with work of Varma and Abrahams), but that the inelastic part may be so interpreted, if Landau parameter effects are non-negligible.

【 授权许可】

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