Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Ivan Savenko"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-7 (2023)
Abstract In the case of structureless bosons, cooled down to low temperatures, the absorption of electromagnetic waves by their Bose-Einstein condensate is usually forbidden due to the momentum and energy conservation laws: the phase velocity of the
Externí odkaz:
https://doaj.org/article/aaa210652dc44e7a995cdf7ec2b4c994
Publikováno v:
Physical Review Research. 3
We develop a strong-coupling theory of Bose-Einstein condensate-mediated superconductivity in a hybrid system, which consists of a two-dimensional electron gas with either: (i) parabolic spectrum or (ii) relativistic Dirac spectrum in the vicinity of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f82184511681559441b02f7345df20d
https://doi.org/10.1103/physrevresearch.3.033166
https://doi.org/10.1103/physrevresearch.3.033166
Publikováno v:
Physical Review B. 103
We develop a theory of optical transitions in Coulomb impurity-doped two-dimensional transition metal dichalcogenide monolayers and study the transitions from the spin-resolved valence band to the (Coulomb) donor and acceptor impurities under the inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84b8d8af9e69dd0832e6d4eda71a5fd6
https://doi.org/10.1103/physrevb.103.245402
https://doi.org/10.1103/physrevb.103.245402
Publikováno v:
Physical Review B. 103
We analyze the valley selection rules for optical transitions from impurity states to the conduction band in two-dimensional Dirac materials, taking a monolayer of MoS2 as an example. We employ the analytical model of a shallow impurity potential whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7be6c83d498052ad5bdea4f5b7aebd1
https://doi.org/10.1103/physrevb.103.l161301
https://doi.org/10.1103/physrevb.103.l161301
We report on a novel mechanism of BCS-like superconductivity, mediated by a pair of Bogoliubov quasiparticles (bogolons). It takes place in hybrid systems consisting of a two-dimensional electron gas in a transition metal dichalcogenide monolayer in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::697aa87326919fc4583a2a74561c9a42
https://hdl.handle.net/10356/153873
https://hdl.handle.net/10356/153873
Acoustoelectric effect in two-dimensional Dirac materials exposed to Rayleigh surface acoustic waves
Publikováno v:
Physical Review B. 102
We study the acoustoelectric effect in two-dimensional materials like transition metal dichalcogenide monolayers located on a non-piezoelectric substrate and exposed to the Rayleigh surface acoustic waves. We investigate the behavior of the Hall comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32eccd58f0ef4880b74a8d75785ae492
https://doi.org/10.1103/physrevb.102.235405
https://doi.org/10.1103/physrevb.102.235405
Autor:
Ivan Savenko, V. M. Kovalev
Publikováno v:
Physical Review Letters. 124
We propose to employ an optical spectroscopy technique to monitor the superconductivity and properties of superconductors in the fluctuating regime. This technique is operational close to the plasmon resonance frequency of the material, and it intima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98ad8b16733c7660a2cf8695acf00a4e
https://doi.org/10.1103/physrevlett.124.207002
https://doi.org/10.1103/physrevlett.124.207002
We study electron transport in two-dimensional materials with parabolic and linear (graphene) dispersions of the carriers in the presence of surface acoustic waves and an external magnetic field using semiclassical Boltzmann equations approach. We ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5e6373f3e46fe1fb3f829ea493e3443
http://arxiv.org/abs/2004.13275
http://arxiv.org/abs/2004.13275
We study hybridization of collective plasmon and Carlson-Goldman-Artemenko-Volkov modes in a hybrid system, consisting of two-dimensional layers of electron gas in the normal state and superconductor, coupled by long-range Coulomb forces. The interac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbd2ef4ddaadc1d301b53776ab97fa27
http://arxiv.org/abs/2003.08084
http://arxiv.org/abs/2003.08084
We report on a peculiar propagation of bosons loaded by a short Laguerre-Gaussian pulse in a nearly flat band of a lattice potential. Taking a system of exciton-polaritons in a kagome lattice as an example, we show that an initially localized condens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2032a798d6f4da25880504034f7cc2b7
http://arxiv.org/abs/2001.03317
http://arxiv.org/abs/2001.03317