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Spin-orbit coupling and electron spin resonance for interacting electrons in carbon nanotubes | | A. De Martino
; R. Egger
; F. Murphy-Armando
; K. Hallberg
; | | Date: |
16 May 2003 | | Journal: | J. Phys.: Condens. Matter 16 (2004) S1437-S1452 | | Subject: | Strongly Correlated Electrons; Mesoscopic Systems and Quantum Hall Effect | cond-mat.str-el cond-mat.mes-hall | | Abstract: | We review the theoretical description of spin-orbit scattering and electron spin resonance in carbon nanotubes. Particular emphasis is laid on the effects of electron-electron interactions. The spin-orbit coupling is derived, and the resulting ESR spectrum is analyzed both using 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. | | Source: | arXiv, cond-mat/0305388 | | Services: | Forum | Review | PDF | Favorites | |
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