https://doi.org/10.1140/epjb/e2014-50076-6
Regular Article
Spin-orbit effects in carbon nanotubes – Analytical results
1
Kirensky Institute of Physics, 660036
Krasnoyarsk,
Russia
2
Institute of Experimental Physics, Watsonova 47, 04001
Košice, Slovak
Republic
3
Departament de Física, Universitat de les Illes
Balears, 07122
Palma de Mallorca,
Spain
4
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for
Nuclear Research, 141980
Dubna,
Russia
a
e-mail: rashid@theor.jinr.ru
Received: 3 February 2014
Received in final form: 26 March 2014
Published online: 2 June 2014
Energy spectra and transport properties of armchair nanotubes with curvature induced spin-orbit interaction are investigated thoroughly. The spin-orbit interaction consists of two terms: the first one preserves the spin symmetry in rotating frame, while the second one breaks it. It is found that the both terms are equally important: (i) at scattering on the potential step which mimics a long-range potential in the nanotubes; (ii) at transport via nanotube quantum dots. It is shown that an armchair nanotube with the first spin-orbit term works as an ideal spin-filter, while the second term produces a parasitic inductance.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2014