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Research Thesis Topic

Super-high Mobility Dirac Cd3As2 Semimetal


Topic ID
135

Thesis Topic/Title
Super-high Mobility Dirac Cd3As2 Semimetal

Description

Three dimensional (3D) Dirac semimetals are 3D analogue of graphene, which display Dirac points with linear dispersion in k-space, stabilized by crystal symmetry. Cd3As2 and Na3Bi were predicted to be 3D Dirac semimetals and were 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. This project, a facile and scalable chemical vapor deposition method will be developed to fabricate high-quality Dirac semimetal Cd3As2 microbelts. Their ultrahigh mobility and pronounced Shubnikov-de Haas oscillations will be investigated. This research opens a new avenue for the scalable fabrication of Cd3As2 materials towards exciting electronic applications of 3D Dirac semimetals.


Principal Supervisor

Associate Supervisors

Research Affiliations
  • Centre for Future Materials
  • School of Mechanical and Electrical Engineering

Field of Research
  • Electrical and Electronic Engineering
  • Materials Engineering
  • Nanotechnology

Available Academic Programs

Application Open Date
13/05/2016

Application Close Date
31/12/2019

USQ Scholarship Applications

Other Scholarship Funding Details
www.usq.edu.au/scholarships

Pre-approved for Ethics
No

Admission Requirements

Please review the admission requirements for the academic program associated with this Thesis Topic




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