120 citations · 1.6k across the 149 of their papers we have counts for
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Tunneling conductivity fast modulated by optically-dressed electrons in graphene and a dice lattice
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +2
Based on the transmission coefficient of tunneling electrons, we have presented tunneling current and conductivity across a square-potential barrier for both graphene and -$\mat…
Quantum entanglement between excitons in two-dimensional materials
Gabriel P. Martins, Oleg L. Berman, Godfrey Gumbs +1
The quantum entanglement between two excitons in two-dimensional materials, embedded in an optical microcavity, was investigated. The energy eigenstates of a Jaynes-Cummings like H…
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…
Adjustable propagating plasmons in lattice-based armchair nanoribbons
Andrii Iurov, Liubov Zhemchuzhna, Paula Fekete +5
We have obtained and analyzed the electronic states, polarization function and the plasmon excitations for -based nanoribbons with armchair termination. The calcu…
Coherent-scatterer enhancement and Klein-tunneling suppression by potential barriers in gapped graphene with chirality-time-reversal symmetry
Farhana Anwar, Andrii Iurov, Danhong Huang +2
We have utilized the finite-difference approach to explore electron-tunneling properties in gapped graphene through various electrostatic-potential barriers changing from Gaussian…
Defect capturing and charging dynamics and their effects on magneto-transport of electrons in quantum wells
Andrii Iurov, Danhong Huang, Godfrey Gumbs +2
The defect corrections to polarization and dielectric functions of Bloch electrons in quantum wells are first calculated. Following this, we derive the first two moment equations f…