Features of ElectronPhonon Interaction in Nanotubes
with Chiral Symmetry Placed in a Magnetic Field

O. V. Kibis

Novosibirsk State Technical University, Novosibirsk, 630092 Russia

e-mail: oleg.kibis@nstu.ru

Received April 16, 2001

Abstract—The interaction of electrons with acoustic phonons is considered in a nanotube with chiral symme-
try placed in a magnetic field parallel to the nanotube axis. It is shown that in such a system, the electronic
energy spectrum is not invariant under electron wavevector reversal and, therefore, the electron–phonon inter-
action is different for identical phonons with oppositely directed wavevectors. This phenomenon leads to the
occurrence of an electromotive force during spatially homogeneous heating of an electron gas and to the pres-
ence of a term quadratic in current in the current–voltage characteristic of a nanotube. © 2001 MAIK
“Nauka/Interperiodica”.

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