Replica symmetry breaking transition of the weakly anisotropic Heisenberg spin glass in magnetic fields

Details Replica symmetry breaking transition of the weakly anisotropic Heisenberg spin glass in magnetic fields Replica symmetry breaking transition of the weakly anisotropic Heisenberg spin glass in magnetic fields

2003-10-15

arxiv.org/abs/cond-mat/0310348v1

Phys. Rev. Lett., 92 077204 (2004)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.92.077204

The spin and the chirality orderings of the three-dimensional Heisenberg spin glass with the weak random anisotropy are studied under applied magnetic fields by equilibrium Monte Carlo simulations. A replica symmetry breaking transition occurs in the chiral sector accompanied by the simultaneous spin-glass order. The ordering behavior differs significantly from that of the Ising SG, despite the similarity in the global symmetry. Our observation is consistent with the spin-chirality decoupling-recoupling scenario of a spin-glass transition.

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