Exact diagonalization study of the Hubbard-parametrized four-spin ring exchange model on a square lattice

Authors: Larsen, C. B., Rømer, A. T., Janas, S., Treue, F., Mønsted, B., Shaik, N. E., Rønnow, H. M., Lefmann, K.

Source: Phys. Rev. B 99, 054432 (2019)

Subject Terms: Condensed Matter - Strongly Correlated Electrons

Access URL: http://arxiv.org/abs/1812.04277