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Dynamic critical behavior of disordered 3D Heisenberg ferromagnets

M. Alba·S. Pouget
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Abstract

The influence of a strong disorder on the critical dynamics of 3D Heisenberg ferromagnet was investigated by high-resolution quasielastic neutron scattering. A new disorder-induced dynamical critical behavior was found, characterized by its critical exponent z=2.3. The dynamical scaling function appeared mainly unaffected by disorder but its description led to a new parameterization of the Renormalization Group theory, as in the case of pure Nickel.

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M. Alba, S. Pouget. 2000-08-18. Dynamic critical behavior of disordered 3D Heisenberg ferromagnets. https://doi.org/10.1016/s0304-8853(00)00769-1

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