Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2

R. Sankar; M. Neupane; S. Y. Xu; C. J. Butler; I. Zeljkovic; I. Panneer Muthuselvam; F. T. Huang; S. T. Guo; Sunil K. Karna; M. W. Chu; W. L. Lee; M. T. Lin; R. Jayavel; V. Madhavan; M. Z. Hasan; F. C. Chou

doi:10.1038/srep12966

Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2

R. Sankar, M. Neupane, S. Y. Xu, C. J. Butler, I. Zeljkovic, I. Panneer Muthuselvam, F. T. Huang, S. T. Guo, Sunil K. Karna, M. W. Chu, W. L. Lee, M. T. Lin, R. Jayavel, V. Madhavan, M. Z. Hasan, F. C. Chou

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Abstract

The three dimensional (3D) Dirac semimetal is a new quantum state of matter that has attracted much attention recently in physics and material science. Here, we report on the growth of large plate-like single crystals of Cd₃As₂ in two major orientations by a self-selecting vapor growth (SSVG) method, and the optimum growth conditions have been experimentally determined. The crystalline imperfections and electrical properties of the crystals were examined with transmission electron microscopy (TEM), scanning tunneling microscopy (STM), and transport property measurements. This SSVG method makes it possible to control the as-grown crystal compositions with excess Cd or As leading to mobilities near 5^-105 cm²V^-1s^-1. Zn-doping can effectively reduce the carrier density to reach the maximum residual resistivity ratio (RRR≡_ρ300K/ρ5K) of 7.6. A vacuum-cleaved single crystal has been investigated using angle-resolved photoemission spectroscopy (ARPES) to reveal a single Dirac cone near the center of the surface Brillouin zone with a binding energy of approximately 200 meV.

Original language	English (US)
Article number	12966
Journal	Scientific reports
Volume	5
DOIs	https://doi.org/10.1038/srep12966
State	Published - Aug 14 2015

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Sankar, R., Neupane, M., Xu, S. Y., Butler, C. J., Zeljkovic, I., Panneer Muthuselvam, I., Huang, F. T., Guo, S. T., Karna, S. K., Chu, M. W., Lee, W. L., Lin, M. T., Jayavel, R., Madhavan, V., Hasan, M. Z., & Chou, F. C. (2015). Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2. Scientific reports, 5, Article 12966. https://doi.org/10.1038/srep12966

@article{f9bcd93c0f8747eab57324982a40479c,

title = "Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2",

abstract = "The three dimensional (3D) Dirac semimetal is a new quantum state of matter that has attracted much attention recently in physics and material science. Here, we report on the growth of large plate-like single crystals of Cd3As2 in two major orientations by a self-selecting vapor growth (SSVG) method, and the optimum growth conditions have been experimentally determined. The crystalline imperfections and electrical properties of the crystals were examined with transmission electron microscopy (TEM), scanning tunneling microscopy (STM), and transport property measurements. This SSVG method makes it possible to control the as-grown crystal compositions with excess Cd or As leading to mobilities near 5-105 cm2V-1s-1. Zn-doping can effectively reduce the carrier density to reach the maximum residual resistivity ratio (RRR≡ρ300K/ρ5K) of 7.6. A vacuum-cleaved single crystal has been investigated using angle-resolved photoemission spectroscopy (ARPES) to reveal a single Dirac cone near the center of the surface Brillouin zone with a binding energy of approximately 200 meV.",

author = "R. Sankar and M. Neupane and Xu, {S. Y.} and Butler, {C. J.} and I. Zeljkovic and {Panneer Muthuselvam}, I. and Huang, {F. T.} and Guo, {S. T.} and Karna, {Sunil K.} and Chu, {M. W.} and Lee, {W. L.} and Lin, {M. T.} and R. Jayavel and V. Madhavan and Hasan, {M. Z.} and Chou, {F. C.}",

note = "Funding Information: FCC acknowledges the support provided by the Ministry of Science and Technology in Taiwan under project number MOST-102-2119-M-002-004. RS and F.C.C acknowledges the support provided by the Academia Sinica research program on nanoscience and nanotechnology project number NM004. V. M. gratefully acknowledges funding from the US Department of Energy, Scanned Probe Division under Award Number DE-FG02-12ER46880.",

year = "2015",

month = aug,

day = "14",

doi = "10.1038/srep12966",

language = "English (US)",

volume = "5",

journal = "Scientific reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

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Sankar, R, Neupane, M, Xu, SY, Butler, CJ, Zeljkovic, I, Panneer Muthuselvam, I, Huang, FT, Guo, ST, Karna, SK, Chu, MW, Lee, WL, Lin, MT, Jayavel, R, Madhavan, V, Hasan, MZ & Chou, FC 2015, 'Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2', Scientific reports, vol. 5, 12966. https://doi.org/10.1038/srep12966

TY - JOUR

T1 - Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2

AU - Sankar, R.

AU - Neupane, M.

AU - Xu, S. Y.

AU - Butler, C. J.

AU - Zeljkovic, I.

AU - Panneer Muthuselvam, I.

AU - Huang, F. T.

AU - Guo, S. T.

AU - Karna, Sunil K.

AU - Chu, M. W.

AU - Lee, W. L.

AU - Lin, M. T.

AU - Jayavel, R.

AU - Madhavan, V.

AU - Hasan, M. Z.

AU - Chou, F. C.

N1 - Funding Information: FCC acknowledges the support provided by the Ministry of Science and Technology in Taiwan under project number MOST-102-2119-M-002-004. RS and F.C.C acknowledges the support provided by the Academia Sinica research program on nanoscience and nanotechnology project number NM004. V. M. gratefully acknowledges funding from the US Department of Energy, Scanned Probe Division under Award Number DE-FG02-12ER46880.

PY - 2015/8/14

Y1 - 2015/8/14

N2 - The three dimensional (3D) Dirac semimetal is a new quantum state of matter that has attracted much attention recently in physics and material science. Here, we report on the growth of large plate-like single crystals of Cd3As2 in two major orientations by a self-selecting vapor growth (SSVG) method, and the optimum growth conditions have been experimentally determined. The crystalline imperfections and electrical properties of the crystals were examined with transmission electron microscopy (TEM), scanning tunneling microscopy (STM), and transport property measurements. This SSVG method makes it possible to control the as-grown crystal compositions with excess Cd or As leading to mobilities near 5-105 cm2V-1s-1. Zn-doping can effectively reduce the carrier density to reach the maximum residual resistivity ratio (RRR≡ρ300K/ρ5K) of 7.6. A vacuum-cleaved single crystal has been investigated using angle-resolved photoemission spectroscopy (ARPES) to reveal a single Dirac cone near the center of the surface Brillouin zone with a binding energy of approximately 200 meV.

AB - The three dimensional (3D) Dirac semimetal is a new quantum state of matter that has attracted much attention recently in physics and material science. Here, we report on the growth of large plate-like single crystals of Cd3As2 in two major orientations by a self-selecting vapor growth (SSVG) method, and the optimum growth conditions have been experimentally determined. The crystalline imperfections and electrical properties of the crystals were examined with transmission electron microscopy (TEM), scanning tunneling microscopy (STM), and transport property measurements. This SSVG method makes it possible to control the as-grown crystal compositions with excess Cd or As leading to mobilities near 5-105 cm2V-1s-1. Zn-doping can effectively reduce the carrier density to reach the maximum residual resistivity ratio (RRR≡ρ300K/ρ5K) of 7.6. A vacuum-cleaved single crystal has been investigated using angle-resolved photoemission spectroscopy (ARPES) to reveal a single Dirac cone near the center of the surface Brillouin zone with a binding energy of approximately 200 meV.

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U2 - 10.1038/srep12966

DO - 10.1038/srep12966

M3 - Article

C2 - 26272041

AN - SCOPUS:84939446690

SN - 2045-2322

VL - 5

JO - Scientific reports

JF - Scientific reports

M1 - 12966

ER -

Large single crystal growth, transport property, and spectroscopic characterizations of three-dimensional Dirac semimetal Cd 3 As 2

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