Two-Dimensional Ising Model with Competing Interactions as a Model for Interacting pi-Rings

Citation

O'Hare A, Kusmartsev FV & Kugel KI (2009) Two-Dimensional Ising Model with Competing Interactions as a Model for Interacting pi-Rings. Acta Physica Polonica A, 115 (1), pp. 150-152. http://przyrbwn.icm.edu.pl/APP/ABSTR/115/a115-1-37.html

Abstract
We investigate the Ising model on a square lattice with antiferromagnetic exchange between nearest and next-nearest neighbors and show that at low temperatures stripe-like and droplet-like superstructures appear. We show that the competing interactions introduce a strong frustration that could plausibly describe the systems with dipole{dipole type interactions and pay particular attention to arrays of interacting Josephson ¼-rings.

Journal
Acta Physica Polonica A: Volume 115, Issue 1