Spin-orbit coupling and electron spin resonance for interacting electrons in carbon nanotubes

被引:10
作者
De Martino, A [1 ]
Egger, R
Murphy-Armando, F
Hallberg, K
机构
[1] Univ Dusseldorf, Inst Theoret Phys, D-40225 Dusseldorf, Germany
[2] Comis Nacl Energia Atom, Ctr Atom Bariloche, Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
关键词
D O I
10.1088/0953-8984/16/17/002
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We 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.
引用
收藏
页码:S1437 / S1452
页数:16
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