Elastic stability criteria of seven crystal systems and their application under pressure: Taking carbon as an example
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DOI: 10.1063/5.0139232
Abstract: Elastic stability criteria are widely employed to prove the being of the lattice. Sin'ko and Smirnov have reported the applicable criteria under isotropic pressure and given the equations between the elastic constants [Formula: see text]… read more here.
Keywords: carbon; seven crystal; pressure; stability criteria ... See more keywords
On Elastic Stability and Positive Definiteness for One-Dimensional Quasicrystals
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DOI: 10.3390/cryst15030219
Abstract: In this work, a proper formulation of the elastic stability and positive definiteness of the elastic energy density of one-dimensional quasicrystals is provided. Based on an appropriate Voigt notation, the Sylvester criterion is applied and… read more here.
Keywords: dimensional quasicrystals; elastic stability; one dimensional; positive definiteness ... See more keywords