Pauli susceptibility of A3C60 (A=K, Rb)
Strongly Correlated Electrons
2009-10-30 v1
Abstract
The Pauli paramagnetic susceptibility of A3C60 (A= K, Rb) compounds is calculated. A lattice quantum Monte Carlo method is applied to a multi-band Hubbard model, including the on-site Coulomb interaction U. It is found that the many-body enhancement of the susceptibility is of the order of a factor of three. This reconciles estimates of the density of states from the susceptibility with other estimates. The enhancement is an example of a substantial many-body effect in the doped fullerenes.
Keywords
Cite
@article{arxiv.cond-mat/9701131,
title = {Pauli susceptibility of A3C60 (A=K, Rb)},
author = {F. Aryasetiawan and O. Gunnarsson and E. Koch and R. M. Martin},
journal= {arXiv preprint arXiv:cond-mat/9701131},
year = {2009}
}
Comments
4 pages, revtex, 2 figures, submitted to Phys. Rev. B more information at http://www.mpi-stuttgart.mpg.de/dokumente/andersen/fullerene/