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Magnetic susceptibility of multilayered carbon nanotubes

Author:
A. A. Ovchinnikov   V. V. Atrazhev  


Journal:
Physics of the Solid State


Issue Date:
1998


Abstract(summary):

A theoretical study of the magnetic susceptibility of multilayered carbon nanotubes in fields both parallel, Hpar, and perpendicular, Hperp, to the tube axis has been carried out disregarding electron-electron interaction. The temperature dependences of the magnetic susceptibility obtained exhibit a nontrivial form for Hpar, which is related to the quasi-one-dimensionality of such a system as the nanotube. The dependences of the magnetic susceptibility on chemical potential chi(mu) have also been derived. At low temperatures, chi(mu) has sharp peaks in fields Hpar, which is connected with the presence of 1/radicE-type singularities in the density of states of nanotubes. The effect of interlayer coupling on magnetic susceptibility of small-radius tubes has been investigated numerically


Page:
1769-1773


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