Abstract
In this paper, the magnetic interactions for one-dimensional (1D), two-dimensional (2D) and ladder cuprates are systematically examined. By a comparison of eigenstates between Cu-O clusters and the corresponding Heisenberg models, we evaluate magnitudes of these interactions. As a result, it is found that (1) superexchange interaction J between nearest neighbor Cu spins for 1D cuprate is larger than that of 2D one, (2) for ladder an anisotropy of J between leg and rung is small, and (3) a cyclic four-spin interaction J cyc in a plaquette exists with magnitude of ~10% of J for ladder and 2D cuprates. The effect of J cyc on the magnetic properties of ladder and 2D cuprates is briefly discussed.
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References
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© 2000 Springer Japan
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Mizuno, Y., Tohyama, T., Maekawa, S. (2000). Magnetic Interaction in 1D, 2D and Ladder Cuprates. In: Yamashita, T., Tanabe, Ki. (eds) Advances in Superconductivity XII. Springer, Tokyo. https://doi.org/10.1007/978-4-431-66877-0_52
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DOI: https://doi.org/10.1007/978-4-431-66877-0_52
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-70270-2
Online ISBN: 978-4-431-66877-0
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