Channeling of charge carrier plasmons in carbon nanotubes
نویسندگان
چکیده
C. Kramberger,1 F. Roth,2 R. Schuster,2 R. Kraus,2 M. Knupfer,2 E. Einarsson,1 S. Maruyama,1 D. J. Mowbray,3 A. Rubio,3,4 and T. Pichler5 1Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo JP-113-8656, Japan 2IFW Dresden, Helmholtzstraße 20, DE-01069 Dresden, Germany 3Nano-Bio Spectroscopy Group and ETSF Scientific Development Centre, Departamento de Fı́sica de Materiales, Universidad del Paı́s Vasco, Centro de Fı́sica de Materiales CSIC-UPV/EHU-MPC and DIPC, Avenida de Tolosa 72, ES-20018 San Sebastián, Spain 4Fritz-Haber-Institut der Max-Planck-Gesellschaft, DE-14195 Berlin, Germany 5University of Vienna, Faculty of Physics, Strudlhofgasse 4, AT-1090, Vienna, Austria (Received 24 August 2011; revised manuscript received 30 January 2012; published 16 February 2012)
منابع مشابه
Direct probe of linearly dispersing 2D interband plasmons in a free-standing graphene monolayer
In low-dimensional systems, a detailed understanding of plasmons and their dispersion relation is crucial for applying their optical response in the field of plasmonics. Electron energyloss spectroscopy is a direct probe of these excitations. Here we report on electron energy-loss spectroscopy results on the dispersion of the π plasmons in free-standing graphene monolayers at the momentum range...
متن کاملObservation of a Luttinger-liquid plasmon in metallic single-walled carbon nanotubes
Surface plasmons1, collective oscillations of conduction electrons, hold great promise for the nanoscale integration of photonics and electronics1–4. However, nanophotonic circuits based on plasmons have been significantly hampered by the difficulty in achieving broadband plasmonic waveguides that simultaneously exhibit strong spatial confinement, a high quality factor and low dispersion. Quant...
متن کاملStudy on interaction between carbon nanotubes (CNTs) as nano carrier for loading and delivery of Methotrexate
The Methotrexate delivery by carbon nanotubes (CNTs) and the structural changes of drugcombination upon the carbon nanotubes and bio thermodynamic of the drug have been studied by molecularcomputational methods. Computational molecular methods have been fulfilled by molecular mechanics methods with four force field, and semi empirical with all methods. We investigate different param...
متن کاملCollective excitations of multishell carbon microstructures: Multishell fullerenes and coaxial nanotubes.
s and p plasmons in coaxial carbon nanotubes and multishell fullerenes are modeled in analogy with coupled collective excitations in finite, layered, two-dimensional-electron-gas, planar semiconductor superlattices. The curvature of the surface of these complex carbon clusters plays an important role in shaping the dimensionality ~one dimensional, two dimensional, or three dimensional! of the p...
متن کاملNBO analysis and theoretical thermodynamic study of (5,5) & (6,6) armchair carbon nanotubes via DFT method
In the present work, the structural and electronic properties, and conductivity of (5,5) and (6,6) Single Walled Carbon Nanotubes in the ground state have done by using the Hartree-Fock and density functional theory DFT-B3LYP/6-31G* level. Delocalization of charge density between the bonding or lone pair and antibonding orbitals calculated by NBO (natural bond orbital) analysis. These methods a...
متن کامل