@article {461001,
	title = {Epsilon-Near-Zero behavior from Plasmonic Dirac Point: theory and realization using two-dimensional materials},
	journal = {Physical Review B},
	volume = {94},
	number = {20},
	year = {2016},
	month = {2016},
	pages = {201404(R)},
	abstract = {The electromagnetic response of a two-dimensional metal embedded in a periodic array of a dielectric host can give rise to a plasmonic Dirac point that emulates Epsilon-Near-Zero (ENZ) behavior. This theoretical result is extremely sensitive to structural features like periodicity of the dielectric medium and thickness imperfections. We propose that such a device can actually be realized by using graphene as the 2D metal and materials like the layered semiconducting transition-metal dichalcogenides or hexagonal boron nitride as the dielectric host. We propose a systematic approach, in terms of design characteristics, for constructing metamaterials with linear, elliptical and hyperbolic dispersion relations which produce ENZ behavior, normal or negative diffraction.},
	url = {http://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.201404},
	author = {M.Mattheakis and C. A. Valagiannopoulos and E. Kaxiras}
}
