Finite-temperature spectral functions of strongly correlated one-dimensional electron systems

Article

关键词: METAL-INSULATOR-TRANSITION;    LUTTINGER-LIQUID BEHAVIOR;    T-J MODEL;    HUBBARD-MODEL;    MOMENTUM DISTRIBUTION;    PHOTOEMISSION SPECTROSCOPY;    CRITICAL EXPONENTS;    FERMI GAS;    CONDUCTORS;    CHAIN;   

DOI  :  10.1103/PhysRevB.56.6555

来源: SCIE

【 摘 要 】

The spectral functions of tJ and tJ(XY) models in the limit of J/t-->0 and at finite temperatures T much less than t are calculated using the spin-charge factorized wave function. We find that the Luttinger-liquid-like scaling behavior for a finite system with L sites is restricted below temperatures of the order T less than or similar to J/L. We also observe a weight redistribution in the photoemission spectral function in the energy range t, which is much larger than the temperature.

【 授权许可】

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