# Magnetic properties of undoped C60.

@article{Coffey1992MagneticPO, title={Magnetic properties of undoped C60.}, author={Coffey and Trugman}, journal={Physical review letters}, year={1992}, volume={69 1}, pages={ 176-179 } }

The Heisenberg antiferromagnet, which arises from the large-{ital U} Hubbard model, is investigated on the C{sub 60} molecule and other fullerenes. The connectivity of C{sub 60} leads to an exotic classical ground state with nontrivial topology. We argue that there is no phase transition in the Hubbard model as a function of {ital U}/{ital t}, and thus the large-{ital U} solution is relevant for the physical case of intermediate coupling. The system undergoes a first-order metamagnetic phase…

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