13 citations · 23 across the 3 of their papers we have counts for
3 papers
cond-mat.mes-hall2023
Stark effect tunable terahertz transitions in finite carbon chains
R. A. Ng, M. E. Portnoi, R. R. Hartmann
We employ a tight-binding model to calculate the optical selection rules of gold-terminated carbyne chains in the presence of an applied electric field. We show that both the magni…
cond-mat.mes-hall2022★ 13 cited
Tuning terahertz transitions in cyclo[n]carbon rings
R. A. Ng, M. E. Portnoi, R. R. Hartmann
We develop an analytic model for an ideal polyyne ring which describes the induced THz gap in the molecular spectrum due to the Stark effect. This simple model can also be used to…
cond-mat.mes-hall2021★ 10 cited
Mapping borophene onto graphene: Quasi-exact solutions for guiding potentials in tilted Dirac cones
R. A. Ng, A. Wild, M. E. Portnoi +1
We show that if the solutions to the (2+1)-dimensional massless Dirac equation for a given 1D potential are known, then they can be used to obtain the eigenvalues and eigenfunction…