Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi

doi:10.1088/0256-307X/39/4/047501

	Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi
	Cao, Weizheng1 ; Su, Yunlong1 ; Wang, Qi1,2 ; Pei, Cuiying1 ; Gao, Lingling1 ; Zhao, Yi1 ; Li, Changhua1 ; Yu, Na1 ; Wang, Jinghui1,2 ; Liu, Zhongkai1,2 ; Chen, Yulin1,2,3 ; Li, Gang1,2 ; Li, Jun1,2 ; Qi, Yanpeng1,2,4
	2022-03
发表期刊	CHINESE PHYSICS LETTERS
ISSN	0256-307X
EISSN	1741-3540
卷号	39 期号:4
发表状态	已发表
DOI	10.1088/0256-307X/39/4/047501
摘要	As a new type of quantum state of matter hosting low energy relativistic quasiparticles, Weyl semimetals (WSMs) have attracted significant attention for scientific community and potential quantum device applications. In this study, we present a comprehensive investigation of the structural, magnetic, and transport properties of noncentrosymmetric RAlSi (R = Sm, Ce), which have been predicted to be new magnetic WSM candidates. Both samples exhibit nonsaturated magnetoresistance, with about 900% and 80% for SmAlSi and CeAlSi, respectively, at temperature of 1.8 K and magnetic field of 9 T. The carrier densities of SmAlSi and CeAlSi exhibit remarkable change around magnetic transition temperatures, signifying that the electronic states are sensitive to the magnetic ordering of rare-earth elements. At low temperatures, SmAlSi reveals prominent Shubnikov-de Haas oscillations associated with the nontrivial Berry phase. High-pressure experiments demonstrate that the magnetic order is robust and survival under high pressure. Our results would yield valuable insights into WSM physics and potentials in applications to next-generation spintronic devices in the RAlSi (R = Sm, Ce) family.
URL	查看原文
收录类别	SCI ; EI ; SCIE
语种	英语
资助项目	National Key R&D Program of China["2018YFA0704300","2017YFB0503302"] ; National Natural Science Foundation of China["U1932217",11974246,12004252,61771234,12004251] ; Natural Science Foundation of Shanghai["19ZR1477300","20ZR1436100"] ; Science and Technology Commission of Shanghai Municipality["19JC1413900","YDZX20203100001438"] ; Shanghai Science and Technology Plan[21DZ2260400] ; Shanghai Sailing Program[21YF1429200] ; Interdisciplinary Program of Wuhan National High Magnetic Field Center[WHMFC202124] ; Analytical Instrumentation Center[SPST-AIC10112914] ; Centre for High-resolution Electron Microscopy (CEM)[EM02161943]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000773098800001
出版者	IOP Publishing Ltd
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/169247
专题	物质科学与技术学院_PI研究组_齐彦鹏组物质科学与技术学院_PI研究组_柳仲楷组物质科学与技术学院_PI研究组_李刚组物质科学与技术学院_特聘教授组_陈宇林物质科学与技术学院_公共科研平台_分析测试平台物质科学与技术学院_硕士生物质科学与技术学院_博士生物质科学与技术学院_PI研究组_李军组物质科学与技术学院_公共科研平台_拓扑物理实验室物质科学与技术学院_PI研究组_张石磊组
通讯作者	Wang, Jinghui; Li, Gang; Qi, Yanpeng
作者单位	1.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Shanghai Tech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China 3.Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England 4.Shanghai Tech Univ, Shanghai Key Lab High Resolut Electron Microscopy, Shanghai 201210, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院; 上海科技大学
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Cao, Weizheng,Su, Yunlong,Wang, Qi,et al. Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi[J]. CHINESE PHYSICS LETTERS,2022,39(4).
APA	Cao, Weizheng.,Su, Yunlong.,Wang, Qi.,Pei, Cuiying.,Gao, Lingling.,...&Qi, Yanpeng.(2022).Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi.CHINESE PHYSICS LETTERS,39(4).
MLA	Cao, Weizheng,et al."Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi".CHINESE PHYSICS LETTERS 39.4(2022).