Breakdown of three-dimensional Dirac semimetal state in pressurized Cd3As2

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	Breakdown of three-dimensional Dirac semimetal state in pressurized Cd3As2
	Zhang, S; Wu, Q; Schoop, L; Ali, MN; Shi, YG; Ni, N; Gibson, Q; Jiang, S; Sidorov, V; Yi, W
刊名	PHYSICAL REVIEW B
	2015
卷号	91 期号:16 页码:—
关键词	TOPOLOGICAL INSULATORS LOW-TEMPERATURES PHASE MOBILITY SURFACE HEAT
英文摘要	We report an observation of a pressure-induced breakdown of the three-dimensional Dirac semimetal (3DDSM) state in Cd3As2, evidenced by a series of in situ high-pressure synchrotron x-ray diffraction and single-crystal transport measurements. We find that Cd3As2 undergoes a structural phase transition from a metallic tetragonal phase in space group I4(1)/acd to a semiconducting monoclinic phase in space group P2(1)/c at critical pressure 2.57 GPa; above this pressure, an activation energy gap appears, accompanied by distinct switches in Hall resistivity slope and electron mobility. These changes of crystal symmetry and corresponding transport properties manifest the breakdown of the 3DDSM state in pressurized Cd3As2.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24405]
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
推荐引用方式 GB/T 7714	Zhang, S,Wu, Q,Schoop, L,et al. Breakdown of three-dimensional Dirac semimetal state in pressurized Cd3As2[J]. PHYSICAL REVIEW B,2015,91(16):—.
APA	Zhang, S.,Wu, Q.,Schoop, L.,Ali, MN.,Shi, YG.,...&Zhao, ZX.(2015).Breakdown of three-dimensional Dirac semimetal state in pressurized Cd3As2.PHYSICAL REVIEW B,91(16),—.
MLA	Zhang, S,et al."Breakdown of three-dimensional Dirac semimetal state in pressurized Cd3As2".PHYSICAL REVIEW B 91.16(2015):—.