Abstract
We have developed series expansions about the Ising limit for the ground state energy, magnetization, susceptibility, and energy gap of the frustrated - antiferromagnet. We find that the Néel order vanishes at /≃0.4 and collinear order sets in around /≃0.6, in broad agreement with other recent work. We also explore the nature of the phase diagram for the spin-anisotropic case. © 1996 The American Physical Society.
- Received 3 May 1996
DOI:https://doi.org/10.1103/PhysRevB.54.3022
©1996 American Physical Society