期刊
PHYSICAL REVIEW B
卷 88, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.88.125403
关键词
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资金
- projects CINECA-ISCRA IscrC_TUN1DFEW
- IscrC_TRAP-DIP
- Fondazione Cassa di Risparmio di Modena COLDandFEW
- EU-FP7 Marie Curie Initial Training Network INDEX
We develop a theory of intervalley Coulomb scattering in semiconducting carbon-nanotube quantum dots, taking into account the effects of curvature and chirality. Starting from the effective mass description of single-particle states, we study the two-electron system by fully including Coulomb interaction, spin-orbit coupling, and short-range disorder. We find that the energy level splittings associated with intervalley scattering are nearly independent of the chiral angle and, while smaller than those due to spin-orbit interaction, large enough to be measurable.
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