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Updated: Oct 7, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Anisotropic domain growth of the axial next-nearest-neighbor Ising model at low temperatures
Abstract:
We investigate the ordering kinetics for the axial next-nearest-neighbor Ising (ANNNI) model in one and two dimensions by the multispin heat bath dynamical simulation. This dynamics enables us to overcome the pinning effect and to observe the dynamical scaling law for domain growth in the ANNNI model at zero temperature. The domain growth exponent is 1/2 isotropically both in the ferromagnetic and the dry (commensurate) antiphase. In the wet (commensurate) antiphase, however, it is approximately 1/3 in the modulated direction, whereas it remains 1/2 in the nonmodulated direction. We suggest that these exponent values are dictated by 3- and 4-body diffusion-reaction processes of domain walls.
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