A model dielectric response function for metallic nanotube ropes |
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| Authors: | JV Alvarez GGN Angilella |
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| Institution: | a Department of Physics, Randall Laboratory 500 E. University, University of Michigan, Ann Arbor, MI 48109, USA
b Dipartimento di Fisica e Astronomia, Università di Catania and Istituto Nazionale per la Fisica della Materia, UdR Catania, Via S. Sofia, 64, I-95123 Catania, Italy |
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| Abstract: | We propose a model dielectric function for ropes of single-walled nanotubes distributed in a glassy graphite host medium. We study the significance of the bosonic charge excitations arising in interacting quasi-one-dimensional systems in the screening processes. We also pay special attention to the role of the intertube Coulomb interactions. In order to compare with experiments, weak relaxation processes are also considered in the relaxation-time approximation. |
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| Keywords: | 71 10 &minus pm 72 22 &minus f |
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