Phys. Rev. Lett. 50, 1153 - 1156 (1983)Nonlinear Field Theory of Large-Spin Heisenberg Antiferromagnets: Semiclassically Quantized Solitons of the One-Dimensional Easy-Axis Néel State
F. D. M. Haldane Received 31 January 1983 The continuum field theory describing the low-energy dynamics of the large-spin one-dimensional Heisenberg antiferromagnet is found to be the O(3) nonlinear sigma model. When weak easy-axis anisotropy is present, soliton solutions of the equations of motion are obtained and semiclassically quantized. Integer and half-integer spin systems are distinguished. ©1983 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevLett.50.1153 [ Abstract | Previous article | Next article | Issue 15 ] |
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