27 citations · 126 across the 23 of their papers we have counts for
8 papers · 1 filter
Surface effects on the plasmons in two-dimemsional heterostructures: Application to tilted semi-Dirac materials
Teresa Lee, Godfrey Gumbs, Thi Nga Do +2
We derived closed-form analytic expressions for the plasmon dispersion equations for two and three monolayers embedded in a non-uniform dielectric medium with a surface. There is n…
Magnetoplasmons in magic-angle twisted bilayer graphene
Thi-Nga Do, Po-Hsin Shih, Godrey Gumbs
The magic-angle twisted bilayer graphene (MATBLG) has been demonstrated to exhibit exotic physical properties due to the special flat bands. However, exploiting the engineering of…
Quantized Hall current in topological nodal-line semimetal
Po-Hsin Shih, Thi-Nga Do, Godfrey Gumbs +3
Photocurrent acts as one of measurable responses of material to light, which has proved itself to be crucial for sensing and energy harvesting. Topological semimetals with gapless…
Generalized Peierls substitution for the tight-binding model of twisted multilayer graphene in a magnetic field
Thi-Nga Do, Po-Hsin Shih, Hsin Lin +3
We propose a generalized Peierls substitution method in conjunction with the tight-binding model to explore the magnetic quantization and quantum Hall effect in twisted multilayer…
Engineering plasmon modes and their loss in armchair graphene nanoribbons by selected edge-extended defects
Thi-Nga Do, Po-Hsin Shih, Godfrey Gumbs +1
The effect of edge modification of armchair graphene nanoribbons (AGNRs) on the collective excitations are theoretically investigated. The tight-binding method is employed in conju…
Influence of electric and magnetic fields and -edge bands on the electronic and optical spectra of graphene nanoribbons
Thi-Nga Do, Po-Hsin Shih, Godfrey Gumbs +1
The unusual electronic and optical properties of armchair and zigzag graphene nanoribbons (GNRs) subject to in-plane transverse electric and perpendicular magnetic fields have been…