, Volume 96, Issue 6, pp 410-415
Date: 10 Jan 2013

Chiral spin liquid in a two-dimensional helical XY magnet with two chiral order parameters

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The critical properties of an XY helimagnet on a square lattice with two chiral order parameters are studied by Monte Carlo simulations. This model is a modification of the J 1-J 2-J 3 model with J 2 = 0. The case of different third range order interactions J 3 are considered, J 3 a J 3 b . A first order transition is found away from the Lifshitz points 4J 3 a = J 1 and 4 J 3 b = J 1. It is pointed out that a chiral spin liquid phase possibly exists near the Lifshitz points.