Extremely large magnetoresistance in an unfilled skutterudite quadratic contact point semimetal CoP3

doi:10.1063/5.0154847

	Extremely large magnetoresistance in an unfilled skutterudite quadratic contact point semimetal CoP3
	Fan, Chenxin1 ; Yuan, Jian1 ; Shi, Xianbiao 2; Yang, Yichen 3; Xi, Chuanying 4; Pi, Li 4; Wang, Xia1,5 ; Yu, Na5 ; Zou, Zhiqiang5 ; Wang, Baotian 2; Shen, Dawei 3,6; Guo, Yanfeng1,7
	2023-06-19
发表期刊	APPLIED PHYSICS LETTERS (IF:3.5[JCR-2023],3.5[5-Year])
ISSN	0003-6951
EISSN	1077-3118
卷号	122 期号:25
发表状态	已发表
DOI	10.1063/5.0154847
摘要	Extremely large magnetoresistance (EXMR) and high mobility are always desired for use in spintronic devices. Herein, we report the observation of EXMR and very large hole mobility reaching similar to 2 x 10(4)% (30 T) and similar to 2 x 10(4) cm(2) V-1 s(-1), respectively, at 2 K in an unfilled skutterudite CoP3 crystal. The magnetotransport measurements unveil remarkable Shubnikov-de Haas quantum oscillations hosting nontrivial Berry phase induced by strong Zeeman splitting. First-principles calculations suggest band inversion between Co-d(xy)/(yz) and P-p(z) orbitals, which forms fourfold quadratic contact point at the C point above the Fermi level of similar to 0.146 eV. The angle-resolved photoelectron spectroscopy measurements verify the calculated surface state. The results provide a quadratic contact point semimetal, which has potential applications in topological devices.
关键词	Cobalt compounds Hole mobility Photoelectron spectroscopy Skutterudites Band inversion Berry's phase Contact points First principle calculations High mobility Magneto-transport measurement Quantum oscillations Shubnikov-de Haas Spintronics device Zeeman splittings
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收录类别	SCI ; EI
语种	英语
资助项目	State Key Laboratory of Functional Materials for Informatics[SKL2022] ; Analytical Instrumentation Center, SPST, ShanghaiTech University[SPST-AIC10112914] ; ShanghaiTech University[U2032208] ; National Science Foundation of China[11227902]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:001018500000002
出版者	AIP Publishing
EI入藏号	20232714341091
EI主题词	Magnetoresistance
EI分类号	482.2 Minerals ; 701.2 Magnetism: Basic Concepts and Phenomena ; 712.1 Semiconducting Materials
原始文献类型	Journal article (JA)
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/321439
专题	物质科学与技术学院物质科学与技术学院_PI研究组_郭艳峰组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
通讯作者	Shen, Dawei; Guo, Yanfeng
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 4.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme C, High Magnet Field Lab, Hefei 230031, Peoples R China 5.ShanghaiTech Univ, Analyt Instrumentat Ctr, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 6.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, 42 South Hezuohua Rd, Hefei 230029, Anhui, Peoples R China 7.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, 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	Fan, Chenxin,Yuan, Jian,Shi, Xianbiao,et al. Extremely large magnetoresistance in an unfilled skutterudite quadratic contact point semimetal CoP3[J]. APPLIED PHYSICS LETTERS,2023,122(25).
APA	Fan, Chenxin.,Yuan, Jian.,Shi, Xianbiao.,Yang, Yichen.,Xi, Chuanying.,...&Guo, Yanfeng.(2023).Extremely large magnetoresistance in an unfilled skutterudite quadratic contact point semimetal CoP3.APPLIED PHYSICS LETTERS,122(25).
MLA	Fan, Chenxin,et al."Extremely large magnetoresistance in an unfilled skutterudite quadratic contact point semimetal CoP3".APPLIED PHYSICS LETTERS 122.25(2023).