A De Martino et al 2004 J. Phys.: Condens. Matter 16 S1437 doi:10.1088/0953-8984/16/17/002
A De Martino1, R Egger1,3, F Murphy-Armando2 and K Hallberg2
Show affiliationsWe review the theoretical description of spin–orbit (SO) scattering and electron spin resonance (ESR) in carbon nanotubes. Particular emphasis is laid on the effects of electron–electron interactions. The SO coupling is derived and the resulting ESR spectrum is analysed using both the effective low-energy field theory and numerical studies of finite-size Hubbard chains and two-leg Hubbard ladders. For single-wall tubes, the field theoretical description predicts a double-peak spectrum linked to the existence of spin–charge separation. The numerical analysis basically confirms this picture, but also predicts additional features in finite-size samples.
71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect
Issue 17 (5 May 2004)
Received 16 May 2003, in final form 24 September 2003
Published 16 April 2004
A De Martino et al 2004 J. Phys.: Condens. Matter 16 S1437
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