%0 Journal Article
%T Giant nonlinearity in Zero-Gap Semiconductor Superlattices
%A M¨¢rio G. Silveirinha
%A Nader Engheta
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevB.89.085205
%X Using an effective medium approach, we describe how by combining mercury-cadmium-telluride semiconductor alloys with band gap energies of opposite signs it may be possible to design a superlattice where the electrons have isotropic zero-effective mass and a single valley linear energy-momentum dispersion. We demonstrate that because of the zero-mass property, the superlattice may have a strong nonlinear response under the action of an external electromagnetic field.
%U http://arxiv.org/abs/1310.2789v1