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cond-mat.mtrl-sci2012★ 1 cited
Three dimensional Dirac point at k=0 in photonic and phononic systems
Xueqin Huang, Fengming Liu, C. T. Chan
While "Dirac cone" dispersions can only be meaningfully defined in two dimensional (2D) systems, the notion of a Dirac point can be extended to three dimensional (3D) classical wav…
cond-mat.mtrl-sci2012★ 309 cited
Do Linear Dispersions of Classical Waves Mean Dirac Cones?
Jun Mei, Ying Wu, C. T. Chan +1
By using the \vec{k}\cdot\vec{p} method, we propose a first-principles theory to study the linear dispersions in phononic and photonic crystals. The theory reveals that only those…