Phys. Rev. B 56, 6555–6558 (1997)Finite-temperature spectral functions of strongly correlated one-dimensional electron systemsReceived 28 April 1997; published in the issue dated 15 September 1997 The spectral functions of tJ and tJXY models in the limit of J/t→0 and at finite temperatures T≪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≲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. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.56.6555
DOI:
10.1103/PhysRevB.56.6555
PACS:
71.10.Fd, 79.60.-i, 78.20.Bh
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