29 citations · 32 across the 6 of their papers we have counts for
6 papers
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…
Coulomb Excitations for a Short Linear Chain of Metallic Shells
Liubov Zhemchuzhna, Godfrey Gumbs, Andrii Iurov +2
A self-consistent-field theory is given for the electronic collective modes of a chain containing a finite number, , of Coulomb-coupled spherical two-dimensional electron gases…
Engineering semiconductor hybrids for sensing
Godfrey Gumbs, Andrii Iurov, Danhong Huang
The effect of screening of the coulomb interaction between two layers of two-dimensional electrons, such as in graphene, by a highly doped semiconducting substrate is investigated.…
Role Played by Surface Plasmons on Plasma Instability in Composite Layered Structures
Godfrey Gumbs, Andrii Iurov, Danhong Huang
We demonstrate the engineering of a source of radiation from growing surface plasmons (charge density oscillations) in a composite nano-system. The considered hybrid nano-structure…
Novel properties of graphene in the presence of energy gap: optics, transport and mobility studies
Godfrey Gumbs, Danhong Huang, Andrii Iurov +1
We review the transmission of Dirac electrons through a potential barrier in the presence of circularly polarized light. A different type of transmission is demonstrated and explai…
Revealing Hofstadter Spectrum for Graphene in a Periodic Potential
Godfrey Gumbs, Andrii Iurov, Danhong Huang +1
We calculate the energy bands for graphene monolayers when electrons move through a periodic electrostatic potential in the presence of a uniform perpendicular magnetic field. We c…