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Stability of three-dimensional icosahedral quasicrystals in multi-component systems
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The relative stability of three-dimensional icosahedral quasicrystals in multi-component systems has been investigated based on a coupled-mode Swift-Hohenberg model with two-length-scales. A recently developed projection method, which provides a unified numerical framework to study periodic crystals and quasicrystals, is used to compute free energies to high accuracy. Compared with traditional approaches, the advantage of the projection method has been also discussed detailedly. A rigorous and systematical computation demonstrates that three-dimensional icosahedral quasicrystal, two-dimensional decagonal quasicrystal are stable phases in such a simple multi-component coupled-mode Swift-Hohenberg model. The result extends the multiple length-scales interaction mechanism which can stabilize quasicrystals from single-component to multi-component systems.
Forward citations
Cited by 2 Pith papers
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The stability of 12-fold symmetry soft-matter quasicrystals
The stability of 12-fold soft-matter quasicrystals reduces to positive definiteness of an extended rigidity matrix built from phonon, phason, and density-coupling material constants.
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The spherical coordinate form of three-dimensional generalized dynamics of soft-matter quasicrystals with 12-fold symmetry
The authors list, without derivation, eleven coupled partial differential equations in spherical coordinates for 12-fold soft-matter quasicrystals and claim this coordinate form is reported for the first time.
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