Polaronic Heat Capacity in The Anderson - Hasegawa Model
arXiv:cond-mat/0301285 · doi:10.1103/PhysRevB.67.132406
Abstract
An exact treatment of the Anderson - Hasegawa two - site model, incorporating the presence of superexchange and polarons, is used to compute the heat capacity. The calculated results point to the dominance of the lattice contribution, especially in the ferromagnetic regime. This behavior is in qualitative agreement with experimental findings.
9 pages, Revtex, 4 postscript figures