This article is cited in 5 papers

Magnetism

Electron spin waves of the surface of a nanotube

A. M. Ermolaev, G. I. Rashba, M. A. Solyanik

V. N. Karazin Kharkiv National University

Abstract: The spin-wave spectrum of a non-ferromagnetic electron gas on the surface of a nanotube in a magnetic field has been considered. The electron-electron interaction has been taken into account in the Hartree–Fock approximation. The dynamic spin susceptibility tensor of the electron gas has been calculated in the random-phase approximation. The spectra of intrasubband and intersubband magnons have been calculated in the quantum and semi-classical cases. It has been shown that, for a large number of occupied subbands, the spin-wave frequencies exhibit de Haas–van Alphen and Aharonov–Bohm oscillations with a change in the electron density and the magnetic flux through the cross section of the nanotube.

Received: 08.02.2011

 English version: Physics of the Solid State, 2011, 53:8, 1594–1598

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