Low Temperature Physics: 32, 1111 (2006); https://doi.org/10.1063/1.2389023 (4 pages)
Fizika Nizkikh Temperatur: Volume 32, Number 11 (November 2006), p. 1458-1462    ( to contents , go back )

On the possible reason for superconductivity strengthening in multiwall carbon nanotubes

Yu.B. Gaididei and V.M. Loktev

Bogolyubov Institute for Theoretical Physics, 14 B Metrologichna Str., Kiev 01413, Ukraine
E-mail: vloktev@bitp.kiev.ua
pos Анотація:

Received April 17, 2006

Abstract

Basing on the structural peculiarity of two-layer graphene which consists of translational and energetical nonequivalency of carbon atoms from different sublattices, it is shown that the density of long-wave electronic states at the Fermi level is finite (in contrast to the monolayer graphene). It is suggested that the same may be the reason why the critical temperature of superconducting transition in multiwall nanotubes more than ten times higher than in single-wall nanotubes.

PACS:
71.23.-k - Electronic structure of disordered solids
71.21.Ac -
81.05.Uw - Carbon, diamond, graphite

Key words: graphene, quantum Hall effect, unconventional Hall effect.

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