Anisotropic Dirac Fermions in BaMnBi2 and BaZnBi2

doi:10.1038/s41598-018-33512-w

CORC > 金属研究所 > 中国科学院金属研究所

	Anisotropic Dirac Fermions in BaMnBi2 and BaZnBi2
	Ryu, Hyejin 1,2,3; Park, Se Young 4; Li, Lijun 5; Ren, Weijun 5,6; Neaton, Jeffrey B.4,7,8; Petrovic, Cedomir 5; Hwang, Choongyu 9; Mo, Sung-Kwan 1
刊名	SCIENTIFIC REPORTS
	2018-10-17
卷号	8 页码:7
ISSN号	2045-2322
DOI	10.1038/s41598-018-33512-w
通讯作者	Ryu, Hyejin(HRyu@lbl.gov) ; Mo, Sung-Kwan(SKMo@lbl.gov)
英文摘要	We investigate the electronic structure of BaMnBi2 and BaZnBi2 using angle-resolved photoemission spectroscopy and first-principles calculations. Although they share similar structural properties, we show that their electronic structure exhibit dramatic differences. A strong anisotropic Dirac dispersion is revealed in BaMnBi2 with a decreased asymmetry factor compared with other members of AMnBi(2) (A = alkali earth or rare earth elements) family. In addition to the Dirac cones, multiple bands crossing the Fermi energy give rise to a complex Fermi surface topology for BaZnBi2. We further show that the strength of hybridization between Bi-p and Mn-dZn-s states is the main driver of the differences in electronic structure for these two related compounds.
资助项目	US DOE, Office of Basic Energy Sciences[DE-AC02-05CH11231] ; NRF of Korea[2016K1A4A4A01922028] ; NRF of Korea[2017K1A3A7A09016384] ; NRF of Korea[2018R1A2B6004538] ; US Department of Energy, Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division through the Theory of Materials FWP at Lawrence Berkeley National Laboratory (LBNL)[DE-AC02-05CH11231] ; US Department of Energy, Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division through the Theory of Materials FWP at Lawrence Berkeley National Laboratory (LBNL)[KC2301] ; Molecular Foundry through the US Department of Energy, Office of Basic Energy Sciences ; U.S. DOE-BES, Division of Materials Science and Engineering[DE-SC0012704] ; National Natural Science Foundation of China[51671192] ; National Natural Science Foundation of China[51531008] ; KIST Institutional Program[2E28190]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000447511100029
资助机构	US DOE, Office of Basic Energy Sciences ; NRF of Korea ; US Department of Energy, Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division through the Theory of Materials FWP at Lawrence Berkeley National Laboratory (LBNL) ; Molecular Foundry through the US Department of Energy, Office of Basic Energy Sciences ; U.S. DOE-BES, Division of Materials Science and Engineering ; National Natural Science Foundation of China ; KIST Institutional Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/129917]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ryu, Hyejin; Mo, Sung-Kwan
作者单位	1.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA 2.Pohang Univ Sci & Technol, Max Planck POSTECH Ctr Complex Phase Mat, Pohang 37673, South Korea 3.Korea Inst Sci & Technol, Ctr Spintron, Seoul 02792, South Korea 4.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA 5.Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA 6.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 7.Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA 8.Kavli Energy Nanosci Inst Berkeley, Berkeley, CA 94720 USA 9.Pusan Natl Univ, Dept Phys, Busan 46241, South Korea
推荐引用方式 GB/T 7714	Ryu, Hyejin,Park, Se Young,Li, Lijun,et al. Anisotropic Dirac Fermions in BaMnBi2 and BaZnBi2[J]. SCIENTIFIC REPORTS,2018,8:7.
APA	Ryu, Hyejin.,Park, Se Young.,Li, Lijun.,Ren, Weijun.,Neaton, Jeffrey B..,...&Mo, Sung-Kwan.(2018).Anisotropic Dirac Fermions in BaMnBi2 and BaZnBi2.SCIENTIFIC REPORTS,8,7.
MLA	Ryu, Hyejin,et al."Anisotropic Dirac Fermions in BaMnBi2 and BaZnBi2".SCIENTIFIC REPORTS 8(2018):7.