NDLI: Controllable synthesis and magnetotransport properties of Cd<sub>3</sub>As<sub>2</sub> Dirac semimetal nanostructures

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Minhao Wang, Xuefeng Gao, Ming Song, Fengqi Zhang, Kang Wei, Zhongxia Pan, Haiyang Zhang, Rong
Copyright Year	2017
Abstract	Cd3As2, known as the three-dimensional (3D) analogue of graphene, is a Dirac semimetal with a linear dispersion relation along all three directions in momentum space. Here, Cd3As2 nanostructures with various morphologies, including nanowires, nanobelts, nanoplates and nano-octahedra, were synthesized by a facile chemical vapour deposition method. All these kinds of morphologies can be synthesised by carefully adjusting the pressure and argon flow rate. Further, we systematically investigated the magnetotransport properties of the as-grown nanostructures. The temperature dependences of resistance all displayed insulating behaviour, indicating the low carrier density and the Fermi level close to the Dirac point in our Cd3As2 nanostructures. All nanodevices hosted the unsaturated magnetoresistance even up to 14 T. The linear magnetoresistance was observed in nanodevices based on nanoribbons and nanowires. Our detailed study on the morphology regulation and magnetotransport properties of Cd3As2 nanostructures is valuable for the understanding of the growth process and the future nanoelectronic applications of 3D Dirac semimetals.
Starting Page	17689
Ending Page	17696
Page Count	8
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	29
Journal	RSC Advances
DOI	10.1039/c7ra02847d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Dirac Semimetal Fermi level Fermi Graphene Phonon Dirac fermion Argon Magnetoresistance Chemical vapor deposition Position and momentum space Three-dimensional space
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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