A novel non-linear σ-model for frustrated quantum antiferromagnets
- 16 October 1989
- journal article
- letter
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (41) , 7745-7750
- https://doi.org/10.1088/0953-8984/1/41/028
Abstract
A new continuum-limit effective action for the description of the low-temperature long-wavelength fluctuations about the classical Neel state is proposed for the triangular-net quantum Heisenberg antiferromagnet. It is found that the novel frustration field plays a dominant role in describing deviations from the classical state, which would appear to be unstable to quantum fluctuations.Keywords
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