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Article

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2005

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10921

Dynamical ac study of the critical behavior in Heisenberg spin glasses

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http://doi.org/10.1103/PhysRevB.71.100406

Abstract

We present some numerical results for the Heisenberg spin-glass model with Gaussian interactions, in a three dimensional cubic lattice. We measure the AC susceptibility as a function of temperature and determine an apparent finite temperature transition which is compatible with the chiral-glass temperature transition for this model. The relaxation time diverges like a power law $\tau\sim (T-T_c)^{-z\nu}$ with $T_c=0.19(4)$ and $z\nu=5.0(5)$. Although our data indicates that the spin-glass transition occurs at the same temperature as the chiral glass transition, we cannot exclude the possibility of a chiral-spin coupling scenario for the lowest frequencies investigated.

Subject

Vidres de spin, Propietats magnètiques

Subject (English)

Magnetic properties, Spin glasses

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Articles publicats en revistes (Física de la Matèria Condensada)

Citation

PICCO, Marco and RITORT FARRAN, Fèlix. Dynamical ac study of the critical behavior in Heisenberg spin glasses. Physical Review B. 2005. Vol. 71, num. 10, pags. 100406-1-100406-4. ISSN 0163-1829. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/10921

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