Thermodynamics of an Extended Hubbard Model Chain. I. Atomic Limit for the Half-Filled Band.

摘要

For an infinite linear chain the authors consider the atomic limit of an extended Hubbard model which takes into account the nearest neighbor interatomic electron-electro repulsion. The specific heat,static magnetic susceptibility,and density-density correlation function are studied exactly at any temperature for the half-filled band case. The authors discuss also the quarter-filled band in the limit of infinite intra-atomic Coulomb repulsion. (Author)