Kondo Effect Mediated Topological Protection: Co on Sb(111)

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	Kondo Effect Mediated Topological Protection: Co on Sb(111)
	Yu, Yinghui 1; She, Limin 1; Fu, Huixia 2; Huang, Min 1; Li, Hui 2; Meng, Sheng 2; Cao, Gengyu 1
刊名	ACS NANO
	2014-11-01
卷号	8 期号:11 页码:11576-11582
关键词	topological surface states Sb(111) Kondo effect quasiparticle interference time reversal symmetry
英文摘要	We report on a Kondo effect on Co/Sb(111) mediating topological protection of the surface states against local magnetic perturbations. A sharp scanning tunneling spectroscopic peak near the Fermi energy is interpreted as a fingerprint of the Kondo resonance with a high Kondo temperature of about 200 K. Density function theory calculations reveal that the protruding Co adatoms are responsible for the Kondo peak, while the Co atoms underneath present as nonmagnetic impurities. By identifying the quasiparticle interference wavevectors, we demonstrate that only scattering channels related to backscattering confinements are observed for surfaces with and without the Co adsorption. It suggests that the Kondo effect suppresses the backscattering of the topological surface states and may help to expand the functionality of magnetically coupled topological materials for spintronics applications.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]	SURFACE-STATES ; INSULATORS ; PHASE ; IMPURITIES
收录类别	SCI
语种	英语
WOS记录号	WOS:000345553000062
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1312]
专题	武汉物理与数学研究所_原子分子光物理研究部
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yinghui,She, Limin,Fu, Huixia,et al. Kondo Effect Mediated Topological Protection: Co on Sb(111)[J]. ACS NANO,2014,8(11):11576-11582.
APA	Yu, Yinghui.,She, Limin.,Fu, Huixia.,Huang, Min.,Li, Hui.,...&Cao, Gengyu.(2014).Kondo Effect Mediated Topological Protection: Co on Sb(111).ACS NANO,8(11),11576-11582.
MLA	Yu, Yinghui,et al."Kondo Effect Mediated Topological Protection: Co on Sb(111)".ACS NANO 8.11(2014):11576-11582.