Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Yu. A. Uspenskii"'
Publikováno v:
JETP Letters. 109:102-108
The electronic and optical spectra of the Bi3Se2 topological insulator digitally doped with V, Cr, Mn, Fe, and Co atoms are calculated using density functional theory. It is shown that the introduction of magnetic atoms into separate delta layers (on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49703c9b91157e06ec380ff8b6ba4997
https://doi.org/10.1134/s0021364019020097
https://doi.org/10.1134/s0021364019020097
Publikováno v:
Journal of Magnetism and Magnetic Materials. 459:272-275
The calculations of spin effects in 20 Si n O 2 n + m nanoclusters with 10 ⩾ m ⩾ 5 and m ⩾ 1 are presented. They include search for the equilibrium atomic structure, the calculations of electron spectra and the energy of different spin ordering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be22c994629f3ac106a784c81bd0a164
https://doi.org/10.1016/j.jmmm.2017.10.073
https://doi.org/10.1016/j.jmmm.2017.10.073
Autor:
A.B. Mekhiya, A. B. Davydov, Yu. A. Uspenskii, B.A. Aronzon, L.N. Oveshnikov, Erkin Kulatov, S.F. Marenkin, A. I. Ril
Publikováno v:
Acta Materialia. 219:117249
Doping by Mn breaks the time-reversal and crystal symmetry of Cd 3 As 2 , splits Dirac cones and changes band structure. We study these changes using both DFT calculations and magnetotransport measurements. Our band structure of Cd 3 As 2 is confirme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c15adb69c291891db63c10bc6670d02a
https://doi.org/10.1016/j.actamat.2021.117249
https://doi.org/10.1016/j.actamat.2021.117249
Publikováno v:
Journal of Magnetism and Magnetic Materials. 383:100-103
The Stoner criterion is known as a useful tool predicting the ferromagnetic state (FM) in metals. This criterion is not applied to nanoobjects, because of their discrete electron spectrum. In our paper we consider a generalization of this criterion,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d8526e20da149ab3bec55df5760b0d1
https://doi.org/10.1016/j.jmmm.2014.10.099
https://doi.org/10.1016/j.jmmm.2014.10.099
Publikováno v:
Journal of Experimental and Theoretical Physics. 120:1093-1100
A quasiparticle electronic spectrum belongs to the characteristics of nanoobjects that are most important for applications. The following methods of calculating the electronic spectrum are analyzed: the Kohn-Sham equations of the density functional t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dcf70ae53e269946d17c08296d9adc4
https://doi.org/10.1134/s1063776115050210
https://doi.org/10.1134/s1063776115050210
Publikováno v:
JETP Letters. 98:14-18
The role of many-electron effects in the formation of electronic quasiparticle spectra in organic molecular semiconductors (OMS) is analyzed. Many-body perturbation theory, ab initio calculations of metal phthalocyanines and PTCDA molecules, and expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bd12178b3df9f76dc73e913fbd87288
https://doi.org/10.1134/s0021364013140130
https://doi.org/10.1134/s0021364013140130
Autor:
Yu. A. Uspenskii, N. L. Matsko, P. I. Arseev, O. V. Ivanov, V. S. Baturin, Alexey N. Rubtsov, Erkin Kulatov
Publikováno v:
Bulletin of the Lebedev Physics Institute. 40:132-135
An interpolation scheme is proposed for determination of the spectrum of silicon quantum dots 2 to 10 nm in diameter involving the bulk silicon spectrum and the results of our first-principle calculations of silicon clusters 0.7 to 1.5 nm in diameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89724c70f95fc841aabe08fe6dce72a3
https://doi.org/10.3103/s1068335613050060
https://doi.org/10.3103/s1068335613050060
Autor:
Fabienne Michelini, Erkin Kulatov, A.A. Titov, E. V. Tikhonov, Yu. A. Uspenskii, Laurent Raymond
Publikováno v:
Journal of Magnetism and Magnetic Materials. 324:3597-3600
Spin properties of single-doped and single-electron charged nano-systems having an odd number of electrons are studied. Starting from an expression for quasiparticle energies in the GW approximation, a simple analytical expression for the spin-splitt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::080c030bb1c771b0f83a4babd7c22135
https://doi.org/10.1016/j.jmmm.2012.02.099
https://doi.org/10.1016/j.jmmm.2012.02.099
Autor:
Yu. A. Uspenskii, Andrey A. Knizhnik, Andrey Titov, I. Ya. Polischuk, S. Zalyubovsky, Boris Potapkin, Erkin Kulatov, I. A. Valuev, Maria V. Bogdanova, Alexei Deinega, S. L. Eiderman, Sergei Belousov, Yu. E. Lozovik, Badri Narayan Ramamurthi
Publikováno v:
Russian Physics Journal. 52:1135-1143
A method of predictive simulation of the optical properties of photonic crystals has been developed. Firstprinciple calculations of the optical properties have been performed for various materials over a wide temperature range. Absorption spectra hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5322d00b8b7137b7762ce0bb588f912b
https://doi.org/10.1007/s11182-010-9351-z
https://doi.org/10.1007/s11182-010-9351-z
Autor:
B. S. Ishkhanov, Yu. V. Shabalin, A. V. Vinogradov, V.I. Shvedunov, A. A. Postnov, I A Artyukov, A. V. Poseryaev, E. G. Bessonov, R. M. Feshchenko, Yu. A. Uspenskii, Yu. Ya. Maslova, Ya. V. Zubavichus, N. L. Popov, V. G. Tunkin, P V Kostryukov, Yu.L. Slovokhotov, Mikhail V Gorbunkov
Publikováno v:
Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. 1:435-442
The possibility of developing a laser-electron x-ray generator based on the Thomson scattering of laser radiation by relativistic electrons and prospects for its application are considered. In its specifications (brightness, average intensity, and di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a959f861e91dc8a61a0f3ab8b5570291
https://doi.org/10.1134/s1027451007040131
https://doi.org/10.1134/s1027451007040131