Inducing and tuning Kondo screening in a narrow-electronic-band system

doi:10.1038/s41467-022-29891-4

	Inducing and tuning Kondo screening in a narrow-electronic-band system
	Shen, Shiwei 1; Wen, Chenhaoping 1; Kong, Pengfei 1; Gao, Jingjing 2,3; Si, Jianguo 2; Luo, Xuan 2; Lu, Wenjian 2; Sun, Yuping 2,4,5; Chen, Gang 6,7; Yan, Shichao 1,8
刊名	NATURE COMMUNICATIONS
	2022-04-20
卷号	13
DOI	10.1038/s41467-022-29891-4
通讯作者	Yan, Shichao(yanshch@shanghaitech.edu.cn)
英文摘要	Although the single-impurity Kondo physics has already been well understood, the understanding of the Kondo lattice where a dense array of local moments couples to the conduction electrons is still far from complete. The ability of creating and tuning the Kondo lattice in non-f-electron systems will be great helpful for further understanding the Kondo lattice behavior. Here we show that the Pb intercalation in the charge-density-wave-driven narrow-electronic-band system 1T-TaS2 induces a transition from the insulating gap to a sharp Kondo resonance in the scanning tunneling microscopy measurements. It results from the Kondo screening of the localized moments in the 13-site Star-of-David clusters of 1T-TaS2. As increasing the Pb concentration, the narrow electronic band derived from the localized electrons shifts away from the Fermi level and the Kondo resonance peak is gradually suppressed. Our results pave the way for creating and tuning many-body electronic states in layered narrow-electronic-band materials. Non f-electron systems containing narrow electronic band and localized moments are a useful platform to study the Kondo lattice problem. Here, by using scanning tunneling microscopy, the authors show a transition from the insulating gap to a tuneable Kondo resonance in 1T-TaS2 by Pb intercalation.
资助项目	National Science Foundation of China[92065203] ; National Science Foundation of China[11874042] ; National Key R&D program of China[2020YFA0309602] ; ShanghaiTech University ; National Natural Science Foundation of China[12004250] ; Shanghai Sailing Program[20YF1430700] ; Ministry of Science and Technology of China[2018YFE0103200] ; Shanghai Municipal Science and Technology Major Project[2019SHZDZX04] ; Research Grants Council of Hong Kong with General Research Fund[17306520] ; National Key Research and Development Program[2016YFA0300404] ; National Nature Science Foundation of China[11674326] ; National Nature Science Foundation of China[11774351] ; Chinese Academy of Sciences' Large-Scale Scientific Facility[U1832141] ; Chinese Academy of Sciences' Large-Scale Scientific Facility[U1932217] ; Chinese Academy of Sciences' Large-Scale Scientific Facility[U2032215]
WOS关键词	CHARGE-DENSITY WAVES ; HEAVY FERMIONS ; SUPERCONDUCTIVITY
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000784989100010
资助机构	National Science Foundation of China ; National Key R&D program of China ; ShanghaiTech University ; National Natural Science Foundation of China ; Shanghai Sailing Program ; Ministry of Science and Technology of China ; Shanghai Municipal Science and Technology Major Project ; Research Grants Council of Hong Kong with General Research Fund ; National Key Research and Development Program ; National Nature Science Foundation of China ; Chinese Academy of Sciences' Large-Scale Scientific Facility
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131466]
专题	中国科学院合肥物质科学研究院
通讯作者	Yan, Shichao
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China 5.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 6.Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China 7.Univ Hong Kong, HKU UCAS Joint Inst Theoret & Computat Phys Hong, Hong Kong, Peoples R China 8.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Shen, Shiwei,Wen, Chenhaoping,Kong, Pengfei,et al. Inducing and tuning Kondo screening in a narrow-electronic-band system[J]. NATURE COMMUNICATIONS,2022,13.
APA	Shen, Shiwei.,Wen, Chenhaoping.,Kong, Pengfei.,Gao, Jingjing.,Si, Jianguo.,...&Yan, Shichao.(2022).Inducing and tuning Kondo screening in a narrow-electronic-band system.NATURE COMMUNICATIONS,13.
MLA	Shen, Shiwei,et al."Inducing and tuning Kondo screening in a narrow-electronic-band system".NATURE COMMUNICATIONS 13(2022).