[HTML][HTML] Ultrafast investigation and control of Dirac and Weyl semimetals

CP Weber - Journal of Applied Physics, 2021 - pubs.aip.org
Ultrafast experiments using sub-picosecond pulses of light are poised to play an important
role in the study and use of topological materials and, particularly, of the three-dimensional …

Peculiar electronic states, symmetries, and Berry phases in irradiated materials

A Iurov, G Gumbs, D Huang - Physical Review B, 2019 - APS
We have laid out the results of a rigorous theoretical investigation into the response of
electron dressed states, ie, interacting Floquet states arising from the off-resonant coupling …

Topological resonance and single-optical-cycle valley polarization in gapped graphene

SA Oliaei Motlagh, F Nematollahi, V Apalkov… - Physical Review B, 2019 - APS
For gapped graphene, we predict that an intense ultrashort (single-oscillation) circularly
polarized optical pulse can induce a large population of the conduction band and a large …

Quantum-statistical theory for laser-tuned transport and optical conductivities of dressed electrons in materials

A Iurov, L Zhemchuzhna, D Dahal, G Gumbs, D Huang - Physical Review B, 2020 - APS
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 …

Metal-insulator transition in borophene under normal incidence of electromagnetic radiation

AE Champo, GG Naumis - Physical Review B, 2019 - APS
The energy spectrum for the problem of 8− P mmn borophene's electronic carriers under
normal incidence of electromagnetic waves is studied without the use of any perturbative …

Effective Floquet Hamiltonians for periodically driven twisted bilayer graphene

M Vogl, M Rodriguez-Vega, GA Fiete - Physical Review B, 2020 - APS
We derive effective Floquet Hamiltonians for twisted bilayer graphene driven by circularly
polarized light in two different regimes beyond the weak-drive, high-frequency regime. First …

Floquet engineering of interlayer couplings: Tuning the magic angle of twisted bilayer graphene at the exit of a waveguide

M Vogl, M Rodriguez-Vega, GA Fiete - Physical Review B, 2020 - APS
We introduce an approach that allows one complete control over the modulation of the
effective twist angle change in few-layer van der Waals heterostructures by irradiating them …

Many-Body Effects and Optical Properties of Single- and Double Layer - Lattices

A Iurov, G Gumbs, D Huang - arxiv preprint arxiv:2004.05681, 2020 - arxiv.org
An extensive analytical and numerical investigation has been carried out to examine the role
played by many-body effects on various $\alpha $-$\mathcal {T} _3 $ materials under an off …

Floquet engineering of excitons in semiconductor quantum dots

IV Iorsh, DA Zezyulin, SA Kolodny, RE Sinitskiy… - Physical Review B, 2022 - APS
Within the Floquet theory of periodically driven quantum systems, we demonstrate that a
high-frequency electromagnetic field can be used as an effective tool to control excitonic …

Klein tunneling of optically tunable Dirac particles with elliptical dispersions

A Iurov, L Zhemchuzhna, P Fekete, G Gumbs… - Physical Review …, 2020 - APS
We have investigated electron tunneling through an atomically smooth square potential
barrier for both the dice lattice and graphene under a linearly polarized off-resonant and …