Spin-orbit coupling and ESR theory for carbon nanotubes
arXiv:cond-mat/0110352 · doi:10.1103/PhysRevLett.88.206402
Abstract
A theoretical description of ESR in 1D interacting metals is given, with primary emphasis on carbon nanotubes. The spin-orbit coupling is derived, and the resulting ESR spectrum is analyzed by field theory and exact diagonalization. Drastic differences in the ESR spectra of single-wall and multi-wall nanotubes are found. For single-wall tubes, the predicted double peak spectrum could reveal spin-charge separation.
4 pages, 1 figure, final version to appear in PRL