Driscoll, Joseph A.Cook, BrandonBubin, SergiyVarga, Kalman2016-01-292016-01-292011Joseph A. Driscoll, Brandon Cook, Sergiy Bubin, Ka´ lma´n Varga; 2011; First-principles study of field emission from carbon nanotubes and graphene nanoribbons; JOURNAL OF APPLIED PHYSICShttp://nur.nu.edu.kz/handle/123456789/1093A real-space, real-time implementation of time-dependent density functional theory is used to study electron field emission from nanostructures. Carbon nanotubes and graphene nanoribbons are used as model systems. The calculations show that carbon nanotubes with iron adsorbates have spin-polarized emission currents. Graphene nanoribbons are shown to be good field emitters with spatial variation of the emission current influenced by the presence of passivating hydrogenenAttribution-NonCommercial-ShareAlike 3.0 United StatesResearch Subject Categories::NATURAL SCIENCES::Physicscarbon nanotubesgraphene nanoribbonsArticle