54 citations · 233 across the 20 of their papers we have counts for
20 papers
Suppressed plasmon excitations, enhanced damping and static screening in Kek-Y strained model
Jean Marseille, Teresa Lee, Andrii Iurov +3
We performed a rigorous theoretical and numerical investigation into the polarization function, plasmon excitations, and plasmon damping in the Kek- model, a two-dimensional mat…
Exploring non-trivial band structure and spin polarizations in -wave altermagnets tailored by anisotropic optical fields
Andrii Iurov, Liubov Zhemchuzhna, Tiyhearah Danner-Jackson
The subject of the present paper is a detailed theoretical investigation of the energy spectrum and bandgaps, as well as topological and collective properties and linear response,…
Exploring stable long-lifetime plasmon excitations in the Lieb lattice
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +1
The subject of the present paper is a thorough numerical investigation of plasmon expectations, their dispersions and damping within a Lieb lattice. The Lieb lattice is known for i…
Polarizability and plasmons in pseudospin-1 gapped materials with a flat band
Liubov Zhemchuzhna, Andrii Iurov, Godfrey Gumbs +1
The collective electronic properties of various types of pseudospin- Dirac-cone materials with a flat band and finite bangaps in their energy spectra are the subject of our repo…
Dynamical polarization function, plasmons, their damping and collective effects in semi-Dirac bands
Gabrielle Ross-Harvey, Andrii Iurov, Liubov Zhemchuzhna +2
We have calculated the dynamical polarization, plasmons and damping rates in semi-Dirac bands (SDB's) with zero band gap and half-linear, half-parabolic low-energy spectrum. The ob…
Dynamical optical conductivity for gapped materials with a curved "flat" band
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +1
We have calculated the dynamical optical conductivity for materials in the presence of a finite bandgap in their energy bandstructure. This is a special type of e…
Floquet engineering of titled and gapped Dirac materials
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +3
We have established a rigorous theoretical formalism for Floquet engineering, or investigating and eventually tailoring most crucial electronic properties of tetragonal molybdenum…
Developing a semiclassical Wentzel-Kramers-Brillouin theory for model
Kathy Blaise, Chinedu Ejiogu, Andrii Iurov +3
We have developed a complete semiclassical Wentzel-Kramers-Brillouin (WKB) theory for model which describes a wide class of existing pseudospin-1 Dirac cone mater…
Finite-temperature plasmons, damping and collective behavior for model
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +3
We have conducted a thorough theoretical and numerical investigation of the electronic susceptibility, polarizability, plasmons, their damping rates, as well as the static screenin…
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…
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…
Generalized WKB theory for electron tunneling in gapped lattices
Nicholas Weekes, Andrii Iurov, Liubov Zhemchuzhna +2
We generalize Wentzel-Kramers-Brillouin (WKB) semi-classical equations for pseudospin-1 materials with arbitrary hopping parameter , which includes the…
Anomalous Klein paradox due to misalignment of optically-tunable elliptical dispersion for Dirac-cone dressed states and direction of incoming particles
Andrii Iurov, Liubov Zhemchuzhna, Paula Fekete +2
After having derived boundary conditions for dressed-state electrons in a dice lattice, we investigate the electron tunneling through a square electrostatic potential barrier in bo…
Quantum-statistical theory for laser-tuned transport and optical conductivities of dressed electrons in $α-\mc{T}_3$ materials
Andrii Iurov, Liubov Zhemchuzhna, Dipendra Dahal +2
In the presence of external off-resonance and circularly-polarized irradiation, we have derived a many-body formalism and performed a detailed numerical analysis for both the condu…
Effects of site asymmetry and valley mixing on Hofstadter-type spectra of bilayer graphene in a square-scatter array potential
Danhong Huang, Andrii Iurov, Godfrey Gumbs +1
Under a magnetic field perpendicular to an monolayer graphene, the existence of a two-dimensional periodic scatter array can not only mix Landau levels of the same valley for displ…
Exploring the Optical States for Black Phosphorus: Anisotropy and Bandgap Tuning
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +1
The dressed states arising from the interaction between electrons and holes, and off-resonant electromagnetic radiation have been investigated for recently fabricated gapped and an…
Controlling plasmon modes and damping in buckled two-dimensional material open systems
Andrii Iurov, Godfrey Gumbs, Danhong Huang +1
Full ranges of both hybrid plasmon-mode dispersions and their damping are studied systematically by our recently developed mean-field theory in open systems involving a conducting…
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…
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…
Effects of periodic scattering potential on Landau quantization and ballistic transport of electrons in graphene
Godfrey Gumbs, Andrii Iurov, Danhong Huang +2
A two-dimensional periodic array of scatterers has been introduced to a single layer of graphene in the presence of an external magnetic field perpendicular to the graphene layer.…