The three dimensional Heisenberg spin glass under a weak random anisotropy

Details The three dimensional Heisenberg spin glass under a weak random anisotropy The three dimensional Heisenberg spin glass under a weak random anisotropy

2011-01-13

arxiv.org/abs/1101.2509v2

Phys. Rev. B 84, 024419 (2011)

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 4 postscript figures

Scientific paper

We perform a finite size scaling study of the three-dimensional Heisenberg spin glass in the presence of weak random anisotropic interactions, up to sizes L=32. Anisotropies have a major impact on the phase transition. The chiral-glass susceptibility does not diverge, due to a large anomalous dimension. It follows that the anisotropic spin-glass belongs to a Universality Class different from the isotropic model, which questions the applicability of the chirality scenario.

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