Long range chiral order in the antiferromagnetic S=1/2 XY model on the triangular lattice

摘要: Abstract The antiferromagnetic S = 1 2 xy model on finite triangular lattices with lattice sites N≦21 is studied by using a Monte Carlo method of random sampling states. peak height the specific heat shown to increase remarkably N and long range chirality rapidly below temperature. These results strongly suggest occurence phase transition related chiral order in model. temperature estimated be kTch/J 0.39±0.03.