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Fang, Tie-Feng; Zuo, Wei; Luo, Hong-Gang; Fang, TF , Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
Kondo Effect in Carbon Nanotube Quantum Dots with Spin-Orbit Coupling
Source PublicationPHYSICAL REVIEW LETTERS
KeywordAnderson Model States Motion
AbstractMotivated by recent experimental observation of spin-orbit coupling in carbon nanotube quantum dots [F. Kuemmeth , Nature (London) 452, 448 (2008)], we investigate in detail its influence on the Kondo effect. The spin-orbit coupling intrinsically lifts out the fourfold degeneracy of a single electron in the dot, thereby breaking the SU(4) symmetry and splitting the Kondo resonance even at zero magnetic field. When the field is applied, the Kondo resonance further splits and exhibits fine multipeak structures resulting from the interplay of spin-orbit coupling and the Zeeman effect. A microscopic cotunneling process for each peak can be uniquely identified. Finally, a purely orbital Kondo effect in the two-electron regime is also predicted.
2008
ISSN0031-9007
Volume101Issue:24Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNSFC[10575119, 20433070]; Major State Basic Research Developing Program[2007CB815004]; NCET of China ; NSFC[10575119, 20433070]; Major State Basic Research Developing Program[2007CB815004]; NCET of China ; NSFC[10575119, 20433070]; Major State Basic Research Developing Program[2007CB815004]; NCET of China ; NSFC[10575119, 20433070]; Major State Basic Research Developing Program[2007CB815004]; NCET of China
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5417
Collection理论物理所科研产出_SCI论文
Corresponding AuthorFang, TF , Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Fang, Tie-Feng,Zuo, Wei,Luo, Hong-Gang,et al. Kondo Effect in Carbon Nanotube Quantum Dots with Spin-Orbit Coupling[J]. PHYSICAL REVIEW LETTERS,2008,101(24):-.
APA Fang, Tie-Feng,Zuo, Wei,Luo, Hong-Gang,&Fang, TF , Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.(2008).Kondo Effect in Carbon Nanotube Quantum Dots with Spin-Orbit Coupling.PHYSICAL REVIEW LETTERS,101(24),-.
MLA Fang, Tie-Feng,et al."Kondo Effect in Carbon Nanotube Quantum Dots with Spin-Orbit Coupling".PHYSICAL REVIEW LETTERS 101.24(2008):-.
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