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题名: Kondo Effect in Carbon Nanotube Quantum Dots with Spin-Orbit Coupling
作者: Fang, Tie-Feng ;  Zuo, Wei ;  Luo, Hong-Gang
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2008
卷号: 101, 期号:24, 页码:-
关键词: ANDERSON MODEL ;  STATES ;  MOTION
学科分类: Physics
通讯作者: Fang, TF , Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
部门归属: [Fang, TF; Zuo, W] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China; [Luo, HG] Lanzhou Univ, Ctr Interdisciplinary Studies, Lanzhou 730000, Peoples R China; [Luo, HG] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China; [Luo, HG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Motivated 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.
资助者: NSFC[10575119, 20433070]; Major State Basic Research Developing Program[2007CB815004]; NCET of China
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000261704100046
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5417
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Fang, Tie-Feng,Zuo, Wei,Luo, Hong-Gang. Kondo Effect in Carbon Nanotube Quantum Dots with Spin-Orbit Coupling[J]. PHYSICAL REVIEW LETTERS,2008,101(24):-.
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