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

Preprint English OPEN
Hukushima, K. ; Kawamura, H. (2000)
  • Related identifiers: doi: 10.1103/PhysRevE.61.R1008
  • Subject: Condensed Matter - Disordered Systems and Neural Networks
    arxiv: Condensed Matter::Strongly Correlated Electrons | Condensed Matter::Disordered Systems and Neural Networks | Condensed Matter::Soft Condensed Matter

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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