Observation of open-orbit Fermi surface topology in the extremely large magnetoresistance semimetal MoAs2

doi:10.1103/PhysRevB.96.241106

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Observation of open-orbit Fermi surface topology in the extremely large magnetoresistance semimetal MoAs2
	Lou, R ; Xu, YF ; Zhao, LX ; Han, ZQ ; Guo, PJ ; Li, M ; Wang, JC ; Fu, BB ; Liu, ZH ; Huang, YB
刊名	PHYSICAL REVIEW B
	2017
卷号	96 期号:24 页码:-
关键词	GIANT MAGNETORESISTANCE NONSATURATING MAGNETORESISTANCE ANOMALOUS MAGNETORESISTANCE ELECTRONIC-STRUCTURE ULTRAHIGH MOBILITY PHASE-TRANSITION DIRAC SEMIMETAL DISCOVERY INSULATOR BISMUTH
ISSN号	2469-9950
DOI	10.1103/PhysRevB.96.241106
文献子类	期刊论文
英文摘要	While recent advances in band theory and sample growth have expanded the series of extremely large magnetoresistance (XMR) semimetals in transition-metal dipnictides TmPn(2) (Tm = Ta, Nb; Pn = P, As, Sb), the experimental study on their electronic structure and the origin of XMR is still absent. Here, using angle-resolved photoemission spectroscopy combined with first-principles calculations and magnetotransport measurements, we performed a comprehensive investigation on MoAs2, which is isostructural to the TmPn(2) family and also exhibits quadratic XMR. We resolve a clear band structure well agreeing with the predictions. Intriguingly, the unambiguously observed Fermi surfaces (FSs) are dominated by an open-orbit topology extending along both the [100] and [001] directions in the three-dimensional Brillouin zone. We further reveal the trivial topological nature of MoAs2 by bulk parity analysis. Based on these results, we examine the proposed XMR mechanisms in other semimetals, and conclusively ascribe the origin of quadratic XMR in MoAs2 to the carriers motion on the FSs with dominant open-orbit topology, innovating in the understanding of quadratic XMR in semimetals.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31048]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China 2.Chinese Acad Sci, State Key Lab Funct Mat Informat, SIMIT, Shanghai 200050, Peoples R China 3.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China 4.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China 5.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 6.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 7.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China 8.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Lou, R,Xu, YF,Zhao, LX,et al. Observation of open-orbit Fermi surface topology in the extremely large magnetoresistance semimetal MoAs2[J]. PHYSICAL REVIEW B,2017,96(24):-.
APA	Lou, R.,Xu, YF.,Zhao, LX.,Han, ZQ.,Guo, PJ.,...&Wang, SC.(2017).Observation of open-orbit Fermi surface topology in the extremely large magnetoresistance semimetal MoAs2.PHYSICAL REVIEW B,96(24),-.
MLA	Lou, R,et al."Observation of open-orbit Fermi surface topology in the extremely large magnetoresistance semimetal MoAs2".PHYSICAL REVIEW B 96.24(2017):-.