Leading Temperature Corrections to FermiLiquid Theory in Two Dimensions
Abstract
We calculate the basic parameters of the Fermi liquid: the scattering vertex, the Landau interaction function, the effective mass, and physical susceptibilities for a model of twodimensional (2D) fermions with a shortranged interaction at nonzero temperature. The leading temperature dependences of the spin components of the scattering vertex, the Landau function, and the spin susceptibility are found to be linear. Tlinear terms in the effective mass and in the ``chargesector'' quantities are found to cancel to second order in the interaction, but the cancellation is argued not to be generic. The connection with previous studies of the 2D Fermiliquid parameters is discussed.
 Publication:

Physical Review Letters
 Pub Date:
 June 2001
 DOI:
 10.1103/PhysRevLett.86.5337
 arXiv:
 arXiv:condmat/0101399
 Bibcode:
 2001PhRvL..86.5337C
 Keywords:

 Condensed Matter  Strongly Correlated Electrons
 EPrint:
 4 pages, 1 figure