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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; Guo, J; Zhou, YZ; Wu, DS; Gao, PW; Gu, DC; Zhang, C; Jiang, S; Yang, K; Li, AG; Li, YC; Li, XD; Liu, J; Dai, X; Fang, Z; Cava, RJ; Sun, LL; Zhao, ZX
2015
Source PublicationPHYSICAL REVIEW B
Volume91Issue:16Pages:
Subtype期刊文献
AbstractWe 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.
KeywordTopological Insulators Low-temperatures Phase Mobility Surface Heat
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24405
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
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):—.
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