@article{deng, title = {Retardation effects on plasma waves in graphene, topological insulators, and quantum wires}, author = {Hai-Yao Deng, Katsunori Wakabayashi}, publisher = {American Physical Society (APS)}, year = {2015}, keywords = {plasma waves, retardation effects, graphene, topological insulators, quantum wires, dispersion relation, terahertz plamonics} }