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Resonant of non-resonant conductivity of a commensurate topological insulator-graphene heterostructure in terahertz regime

Conference Paper


Abstract


  • The terahertz optical response of a commensurate topologically insulator(TI)-graphene heterostructure is investigated. The interplay of interlayer hopping and topological band structure leads to additional selection rules for the inter band optical transition. The optical conductivity of such a system exhibits interesting features that do not occur in the two constituent surfaces separately. The transitions between TI bands give rise to resonant peaks in conductivity and transitions between the TI bands and the graphene bands give rise to a non-resonant conductivity.

UOW Authors


  •   Sanderson, Matt (external author)
  •   Zhang, C

Publication Date


  • 2017

Citation


  • Sanderson, M. & Zhang, C. (2017). Resonant of non-resonant conductivity of a commensurate topological insulator-graphene heterostructure in terahertz regime. 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (pp. 1-2). United States: IEEE.

Scopus Eid


  • 2-s2.0-85033724769

Start Page


  • 1

End Page


  • 2

Place Of Publication


  • United States

Abstract


  • The terahertz optical response of a commensurate topologically insulator(TI)-graphene heterostructure is investigated. The interplay of interlayer hopping and topological band structure leads to additional selection rules for the inter band optical transition. The optical conductivity of such a system exhibits interesting features that do not occur in the two constituent surfaces separately. The transitions between TI bands give rise to resonant peaks in conductivity and transitions between the TI bands and the graphene bands give rise to a non-resonant conductivity.

UOW Authors


  •   Sanderson, Matt (external author)
  •   Zhang, C

Publication Date


  • 2017

Citation


  • Sanderson, M. & Zhang, C. (2017). Resonant of non-resonant conductivity of a commensurate topological insulator-graphene heterostructure in terahertz regime. 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (pp. 1-2). United States: IEEE.

Scopus Eid


  • 2-s2.0-85033724769

Start Page


  • 1

End Page


  • 2

Place Of Publication


  • United States