Dynamical simulation of spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses

Details Dynamical simulation of spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses Dynamical simulation of spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses

1998-05-11

arxiv.org/abs/cond-mat/9805117v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages including 5 figures, LaTex, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.80.5421

Spin-glass and chiral-glass orderings in three-dimensional Heisenberg spin glasses are studied with and without randaom magnetic anisotropy by dynamical Monte Carlo simulations. In isotropic case, clear evidence of a finite-temperature chiral-glass transition is presented. While the spin autocorrelation exhibits only an interrupted aging, the chirality autocorrelation persists to exhibit a pronounced aging effect reminisecnt of the one observed in the mean-field model. In anisotropic case, asymptotic mixing of the spin and the chirality is observed in the off-equilibrium dynamics.

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