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Graphene plasmonics has the potential to revolutionize terahertz technology — the last great underdeveloped frequency band of electromagnetic waves. We describe here recent research on large-area tunable graphene plasmonic materials and devices for use in terahertz detectors, modulators, and filters.
Coulomb interaction effects have pronounced consequences in carbon nanotubes due to their 1D nature. In particular, correlations imply the breakdown of Fermi liquid theory and typically lead to Luttinger liquid behavior characterized by pronounced power-law suppression of the transport current and the density of states, and spin-charge separation. This paper provides a review of the current understanding...
We study vacuum deposition of molecular MoO3 as an acceptor surface transfer dopant for topological insulator Bi2Se3. We perform high-resolution photoelectron spectroscopy on in-situ cleaved Bi2Se3 single crystals and in-situ transport measurements on Bi2Se3 films grown by molecular beam epitaxy. MoO3 is an efficient acceptor, lowering the surface Fermi energy to within −100 meV of the Dirac point,...
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