南方科技大学知识苑(SUSTech KC): Local Excitation of Kagome Spin Ice Magnetism Seen by Scanning Tunneling Microscopy

题名	Local Excitation of Kagome Spin Ice Magnetism Seen by Scanning Tunneling Microscopy
作者	Deng, Hanbin1 ; Yang, Tianyu1 ; Liu, Guowei 1 ; Liu, Lu1 ; Zhao, Lingxiao1,2 ; Wang, Wu1 ; Li, Tiantian1,3 ; Song, Wei 1 ; Neupert, Titus 4; Liu, Xiang-Rui1,5 ; Shao, Jifeng5 ; Zhao, Y.Y.2; Xu, Nan 6; Deng, Hao 7; Huang, Li1 ; Zhao, Yue1,5 ; Zhang, Liyuan1,2 ; Mei, Jia-Wei1,5 ; Wu, Liusuo1,8 ; He, Jiaqing1 ; Liu, Qihang1,5,8 ; Liu, Chang 1,5 ; Yin, Jia-Xin1,2
通讯作者	Liu, Qihang; Yin, Jia-Xin
发表日期	2024-07-26
DOI	10.1103/PhysRevLett.133.046503
发表期刊	Physical Review Letters 影响因子和分区
ISSN	0031-9007
EISSN	1079-7114
卷号	133 期号:4
摘要	The kagome spin ice can host frustrated magnetic excitations by flipping its local spin. Under an inelastic tunneling condition, the tip in a scanning tunneling microscope can flip the local spin, and we apply this technique to kagome metal HoAgGe with a long-range ordered spin ice ground state. Away from defects, we discover a pair of pronounced dips in the local tunneling spectrum at symmetrical bias voltages with negative intensity values, serving as a striking inelastic tunneling signal. This signal disappears above the spin ice formation temperature and has a dependence on the magnetic fields, demonstrating its intimate relation with the spin ice magnetism. We provide a two-level spin-flip model to explain the tunneling dips considering the spin ice magnetism under spin-orbit coupling. Our results uncover a local emergent excitation of spin ice magnetism in a kagome metal, suggesting that local electrical field induced spin flip climbs over a barrier caused by spin-orbital locking. © 2024 American Physical Society.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	Acknowledgments\u2014We are thankful for the insightful discussions with Kan Zhao, Xi Dai, Yifeng Yang, and Guangming Zhang. We thank R.\u2009J. Cava for sharing his experience of using \u201Ctitanic\u201D in describing the magnetoresistance in . We acknowledge the support from the National Key R&D Program of China (No. 2023YFA1407300, No. 2023YFF0718403, and No. 2022YFA1403700), National Science Foundation of China (No. 12374060, No. 11804402, No. 12004123, and No. 12334002), Shenzhen Fundamental Research Program (No. JCYJ20220818100405013 and No. JCYJ20230807093204010), the Outstanding Talents Training Fund in Shenzhen (No. 202108), Guangdong Basic and Applied Basic Research Foundation (No. 2024A1515030118), Innovative Team of General Higher Educational Institutes in Guangdong Province (No. 2020KCXTD001), Shenzhen Science and Technology Program (No. 20231117091158001), and Guangdong Provincial Quantum Science Strategic Initiative (No. GDZX2201001). T.\u2009N. acknowledges support from the Swiss National Science Foundation (Project No. 200021E_198011) as part of the FOR 5249 (QUAST) led by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation).
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:001281322000009
出版者	American Physical Society
EI入藏号	20243116792130
EI主题词	Ground state ; Ice
ESI学科分类	PHYSICS
来源库	EV Compendex
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/794436
专题	理学院_物理系南方科技大学量子科学与工程研究院
作者单位	1.Department of Physics, Southern University of Science and Technology, Shenzhen, China 2.Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area (Guangdong), Shenzhen, China 3.Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen, China 4.Department of Physics, University of Zurich, Winterthurerstrasse, Zurich, Switzerland 5.Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Guangdong, Shenzhen, China 6.Institute for Advanced Studies, Wuhan University, Wuhan; 430072, China 7.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China 8.Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, China
第一作者单位	物理系
通讯作者单位	物理系; 量子科学与工程研究院; 南方科技大学
第一作者的第一单位	物理系
推荐引用方式 GB/T 7714	Deng, Hanbin,Yang, Tianyu,Liu, Guowei,et al. Local Excitation of Kagome Spin Ice Magnetism Seen by Scanning Tunneling Microscopy[J]. Physical Review Letters,2024,133(4).
APA	Deng, Hanbin.,Yang, Tianyu.,Liu, Guowei.,Liu, Lu.,Zhao, Lingxiao.,...&Yin, Jia-Xin.(2024).Local Excitation of Kagome Spin Ice Magnetism Seen by Scanning Tunneling Microscopy.Physical Review Letters,133(4).
MLA	Deng, Hanbin,et al."Local Excitation of Kagome Spin Ice Magnetism Seen by Scanning Tunneling Microscopy".Physical Review Letters 133.4(2024).