Magnetic properties of undoped C60.

  title={Magnetic properties of undoped C60.},
  author={Coffey and Trugman},
  journal={Physical review letters},
  volume={69 1},
  • Coffey, Trugman
  • Published 26 June 1992
  • Physics, Medicine
  • Physical review letters
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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  • N. Konstantinidis
  • Physics, Medicine
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2015
The importance of the connectivity of the icosahedron for the appearance of a magnetization discontinuity as a function of an external field which separates two families of lowest energy configurations is examined and the transition from the classical to the quantum limit is investigated.


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