Low Temperature Physics: 32, 1111 (2006); https://doi.org/10.1063/1.2389023 (4 pages)
Физика Низких Температур: Том 32, Выпуск 11 (Ноябрь 2006), c. 1438-1462    ( к оглавлению , назад )

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

Received April 17, 2006

Аннотация

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

Ключевые слова: graphene, quantum Hall effect, unconventional Hall effect.