Realization of a Spin liquid in a Two Dimensional Quantum Antiferromagnet
arXiv:cond-mat/9308002 · doi:10.1103/PhysRevLett.71.4393
Abstract
The ground state properties of the two dimensional spatially anisotropic Heisenberg model are investigated by use of field theory mappings, spin-wave expansion and Lanczos technique. Evidence for a disorder transition induced by anisotropy at about is shown. We argue that the disordered phase is gapless and its long wavelength properties can be interpreted in terms of decoupled one dimensional chains.
10 pages + 5 pictures appended, RevTex 3.0, SISSA 128/93/CM/MB