Chiral-glass transition and replica symmetry breaking of a three-dimensional Heisenberg spin glass

Details Chiral-glass transition and replica symmetry breaking of a three-dimensional Heisenberg spin glass Chiral-glass transition and replica symmetry breaking of a three-dimensional Heisenberg spin glass

2000-01-11

arxiv.org/abs/cond-mat/0001127v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 4 figures, to appear in Phys.Rev.E

Scientific paper

10.1103/PhysRevE.61.R1008

Extensive equilibrium Monte Carlo simulations are performed for a three-dimensional Heisenberg spin glass with the nearest-neighbor Gaussian coupling to investigate its spin-glass and chiral-glass orderings. The occurrence of a finite-temperature chiral-glass transition without the conventional spin-glass order is established. Critical exponents characterizing the transition are different from those of the standard Ising spin glass. The calculated overlap distribution suggests the appearance of a peculiar type of replica-symmetry breaking in the chiral-glass ordered state.

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