Abstract
This paper introduces improvements to the amplitude expansion of the phase-field crystal model that enable the simulation of grains within a full range of orientations. The unphysical grain boundary between grains, rotated by a crystal's symmetry rotation, is removed using a combination of the auxiliary rotation field described in our previous work and an algorithm that correctly matches the complex amplitudes according to the differences in local rotation.
- Received 7 November 2018
- Revised 26 March 2020
- Accepted 26 March 2020
DOI:https://doi.org/10.1103/PhysRevE.101.043309
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