Kondo phase transitions of magnetic impurities in carbon nanotubes

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	Kondo phase transitions of magnetic impurities in carbon nanotubes
	Fang, TF ; Sun, QF
刊名	PHYSICAL REVIEW B
	2013
卷号	87 期号:7
ISSN号	1098-0121
通讯作者	Fang, TF (reprint author), Lanzhou Univ, Ctr Interdisciplinary Studies, Lanzhou 730000, Peoples R China.
中文摘要	We propose carbon nanotubes (CNTs) with magnetic impurities as a versatile platform to achieve exciting Kondo physics, where the CNT bath is gapped by the spin-orbit interaction and renormalized by interference effects. While the strong-coupling phase is inaccessible for the special case of half-filled impurities in neutral armchair CNTs, the system in general can undergo quantum phase transitions to the Kondo ground state. The resultant position-specific phase diagrams are investigated upon variation of the CNT radius, chirality, and carrier doping, revealing several striking features, e. g., the existence of a maximal radius for nonarmchair CNTs to realize phase transitions, and an interference-induced suppression of the Kondo screening. We show that by tuning the Fermi energy via electrostatic gating, the quantum critical region can be experimentally accessed. DOI: 10.1103/PhysRevB.87.075116
资助信息	NBRP of China [2012CB921303, 2009CB929100]; NSF-China
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57146]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Fang, TF,Sun, QF. Kondo phase transitions of magnetic impurities in carbon nanotubes[J]. PHYSICAL REVIEW B,2013,87(7).
APA	Fang, TF,&Sun, QF.(2013).Kondo phase transitions of magnetic impurities in carbon nanotubes.PHYSICAL REVIEW B,87(7).
MLA	Fang, TF,et al."Kondo phase transitions of magnetic impurities in carbon nanotubes".PHYSICAL REVIEW B 87.7(2013).