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Dielectric constant and polarizability in C64 carbon nanotube;A first-principles study

H.R.Sreepad

First-principles calculations have been carried out on a Carbon Nanotube C64. The Electronic density of states reveals that the material shows metallic nature. The value of dielectric constant in Carbon Nanotube C64 comes out to be 20.7, 16.5 and 14.6 along X, Y and Z axes respectively and its average value comes out to be 17.3. Polarizability of Carbon Nanotube C64 has been estimated and it comes out to be 87.3 (Å)3, 84.3 (Å)3 and 82.5 (Å)3 along X, Y and Z axes respectively.