Critical behavior of spin S antiferromagnetic ising model on triangular lattice

Authors:

• Adam Antoni Lipowski,
• Tsuyoshi Horiguchi,
• Dorota Lipowska

Abstract

We have shown that the ground-state problem of the spin S antiferromagnetic Ising model on the triangular lattice maps to a certain solid-on-solid (SOS) model. For SSc it enters a flat phase. The rough phase, whose stability is examined, corresponds to the critical ground state of the Ising model. We suggest that the flat phase corresponds to the ground state with hidden long-range order. © 1995 The American Physical Society.