An Upsilon Point in a Spin Model
arXiv:cond-mat/9504093 · doi:10.1103/PhysRevB.52.4353
Abstract
We present analytic evidence for the occurrence of an upsilon point, an infinite checkerboard structure of modulated phases, in the ground state of a spin model. The structure of the upsilon point is studied by calculating interface--interface interactions using an expansion in inverse spin anisotropy.
18 pages ReVTeX file, including 6 figures encoded with uufiles