Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2004-09-21
Physical Review Letters 93, 257206 (2004)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 5 figures
Scientific paper
10.1103/PhysRevLett.93.257206
We study Heisenberg antiferromagnets with nearest- (J1) and third- (J3) neighbor exchange on the square lattice. In the limit of large spin S, there is a zero temperature (T) Lifshitz point at J3 = (1/4) J1, with long-range spiral spin order at T=0 for J3 > (1/4) J1. We present classical Monte Carlo simulations and a theory for T>0 crossovers near the Lifshitz point: spin rotation symmetry is restored at any T>0, but there is a broken lattice reflection symmetry for 0 <= T < Tc ~ (J3-(1/4) J1) S^2. The transition at T=Tc is consistent with Ising universality. We also discuss the quantum phase diagram for finite S.
Capriotti Luca
Sachdev Subir
No associations
LandOfFree
Low temperature broken symmetry phases of spiral antiferromagnets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Low temperature broken symmetry phases of spiral antiferromagnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low temperature broken symmetry phases of spiral antiferromagnets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-327126