Pauli susceptibility of A3C60 (A=K,Rb).

Aryasetiawan F., Gunnarsson O., Koch E., Martin R. M.

Max-Planck-Inst. Festkorperforschung, Stuttgart, D-70506, Germany; Department of Physics, University of Illinois, Urbana-Champaign.}, abstract = {The Pauli paramagnetic susceptibility of A3C60 (A=K,Rb) compds. is calcd. A lattice quantum-Monte Carlo method is applied to a multi-band Hubbard model, including the on-site Coulomb interaction U. The many-body enhancement of the susceptibility is of the order of a factor of 3. This reconciles ests. of the d. of states from the susceptibility with other ests. The enhancement is an example of a substantial many-body effect in the doped fullerenes.

A reprint of this paper can be obtained from cond-mat in Germany or in the US.

Physical Review B, 55 R10165-R10168, 1997.

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