@article {132, title = {Giant nonlinearity in zero-gap semiconductor superlattices}, journal = {Physical Review B}, volume = {89}, year = {2014}, month = {02/2014}, issn = {1098-0121}, doi = {10.1103/PhysRevB.89.085205}, url = {http://link.aps.org/doi/10.1103/PhysRevB.89.085205}, author = {Silveirinha, M{\'a}rio G. and Engheta, Nader} }