Hydrodynamic approach to two-dimensional electron systems

BN Narozhny - La Rivista del Nuovo Cimento, 2022 - Springer
The last few years have seen an explosion of interest in hydrodynamic effects in interacting
electron systems in ultra-pure materials. One such material, graphene, is not only an …

Coherent emission in the vicinity of 10 THz due to Auger-suppressed recombination of Dirac fermions in HgCdTe quantum wells

SV Morozov, VV Rumyantsev, MS Zholudev… - ACS …, 2021 - ACS Publications
The discovery of Dirac fermions in a number of 2D and 3D materials boosted the solid-state
research in an unprecedented way. Among the many hopes of using their exceptional …

Real-Time : Toward an Ab Initio Description of the Ultrafast Carrier and Exciton Dynamics in Two-Dimensional Materials

E Perfetto, Y Pavlyukh, G Stefanucci - Physical Review Letters, 2022 - APS
We demonstrate the feasibility of the time-linear scaling formulation of the GW method [Phys.
Rev. Lett. 124, 076601 (2020) PRLTAO 0031-9007 10.1103/PhysRevLett. 124.076601] for …

Ultra-long carrier lifetime in neutral graphene-hBN van der Waals heterostructures under mid-infrared illumination

P Huang, E Riccardi, S Messelot, H Graef… - Nature …, 2020 - nature.com
Graphene/hBN heterostructures are promising active materials for devices in the THz
domain, such as emitters and photodetectors based on interband transitions. Their …

Tunable terahertz amplification based on photoexcited active graphene hyperbolic metamaterials

T Guo, L Zhu, PY Chen, C Argyropoulos - Optical Materials Express, 2018 - opg.optica.org
The efficient amplification and lasing of electromagnetic radiation at terahertz (THz)
frequencies is a non-trivial task achieved mainly by quantum cascade laser configurations …

Theory of the strongly nonlinear electrodynamic response of graphene: A hot electron model

SA Mikhailov - Physical Review B, 2019 - APS
An electrodynamic response of graphene to a strong electromagnetic radiation is
considered. A hot electron model (HEM) is introduced and a corresponding system of …

Self-assembled electron-rich interface in defected ZnO: rGO-Cu: Cu2O, and effective visible light-induced carbon dioxide photoreduction

JN Heo, J Kim, JY Do, NK Park, M Kang - Applied Catalysis B …, 2020 - Elsevier
As an ecological mimicry system, carbon dioxide (CO 2)-to-fuel conversion in artificial
photosynthesis is quite attractive as a method to simultaneously solve the global energy …

Fundamental limits to far-infrared lasing in Auger-suppressed HgCdTe quantum wells

G Alymov, V Rumyantsev, S Morozov… - ACS …, 2019 - ACS Publications
The challenge of bridging the terahertz gap with semiconductor lasers faces an inevitable
problem of enhanced nonradiative Auger recombination with reduction of photon energy …

Negative terahertz conductivity and amplification of surface plasmons in graphene–black phosphorus injection laser heterostructures

V Ryzhii, T Otsuji, M Ryzhii, AA Dubinov, VY Aleshkin… - Physical Review B, 2019 - APS
We propose and evaluate the heterostructure based on the graphene layer (GL) with the
lateral electron injection from the side contacts and the hole vertical injection via the black …

Negative and positive terahertz and infrared photoconductivity in uncooled graphene

V Ryzhii, DS Ponomarev, M Ryzhii, V Mitin… - Optical Materials …, 2019 - opg.optica.org
We develop the model for the terahertz (THz) and infrared (IR) photoconductivity of
graphene layers (GLs) at room temperature. The model accounts for the linear GL energy …