Scalable growth of high mobility dirac semimetal Cd3As2 microbelts
Article
Article Title | Scalable growth of high mobility dirac semimetal Cd3As2 microbelts |
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ERA Journal ID | 1369 |
Article Category | Article |
Authors | Chen, Zhi Gang (Author), Zhang, Cheng (Author), Zou, Yichao (Author), Zhang, Enze (Author), Yang, Lei (Author), Hong, Min (Author), Xiu, Faxian (Author) and Zou, Jin (Author) |
Journal Title | Nano Letters: a journal dedicated to nanoscience and nanotechnology |
Journal Citation | 15 (9), pp. 5830-5834 |
Number of Pages | 5 |
Year | 2015 |
Place of Publication | United States |
ISSN | 1530-6984 |
1530-6992 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acs.nanolett.5b01885 |
Web Address (URL) | http://pubs.acs.org/doi/10.1021/acs.nanolett.5b01885 |
Abstract | Three-dimensional (3D) Dirac semimetals are 3D analogues of graphene, which display Dirac points with linear dispersion in k-space, stabilized by crystal symmetry. Cd3As2 has been predicted to be 3D Dirac semimetals and was subsequently demonstrated by angle-resolved photoemission spectroscopy. As unveiled by transport measurements, several exotic phases, such as Weyl semimetals, topological insulators, and topological superconductors, can be deduced by breaking time reversal or inversion symmetry. Here, we reported a facile and scalable chemical vapor deposition method to fabricate high-quality Dirac semimetal Cd3As2 microbelts; they have shown ultrahigh mobility up to 1.15 × 105 cm2 V−1 s−1 and pronounced Shubnikov–de Haas oscillations. Such extraordinary features are attributed to the suppression of electron backscattering. This research opens a new avenue for the scalable fabrication of Cd3As2 materials toward exciting electronic applications of 3D Dirac semimetals. |
Keywords | Cd3As2; Dirac semimetals; Microbelts; Weyl Fermions; Angle resolved photoemission spectroscopy; Chemical vapor deposition methods; Electron backscattering; Electronic application; Shubnikov de-Haas oscillation; Threedimensional (3-d); Topological insulators; Electromagnetic Waves; |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Fudan University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4155/scalable-growth-of-high-mobility-dirac-semimetal-cd3as2-microbelts
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