Search Results - "Orlov, S. Yu"

Photoinduced Nonlinear Dynamics of Strongly Correlated Systems with Spin Crossover: Autocatalytic Spin Transition by Orlov, Yu. S., Nikolaev, S. V., Paklin, N. N.

“…Nonlinear phenomena similar to the Belousov–Zhabotinsky reaction (autocatalytic oscillations of the population of high-spin and low-spin multielectron states…”
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Excitonic Order in Strongly Correlated Systems with the Spin Crossover by Orlov, Yu. S., Nikolaev, S. V., Ovchinnikov, S. G.

“…Features of the formation of the magnetic structure and the exciton Bose–Einstein condensate phase of magnetic excitons in strongly correlated systems near the…”
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Photoinduced Enhancement of the Excitonic Order in Strongly Correlated Electron Systems with the Spin Crossover by Orlov, Yu. S., Nikolaev, S. V., Ovchinnikov, S. G.

“…A new mechanism of the photoinduced enhancement of the excitonic order in strongly correlated electron systems with the spin crossover through the generation…”
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Mechanisms of the Insulator—Metal Transition and Spin Crossover in CoO at High Pressure by Gavrichkov, V. A., Orlov, Yu. S., Ovchinnikova, T. M., Ovchinnikov, S. G.

“…The effect of high pressure on the electronic characteristics of CoO is analyzed in the framework of the multielectron model of transition metal oxides. The…”
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Ultrafast Quantum Relaxation Dynamics of Magnetically Ordered Systems with Spin Crossover in an Excited State under a Sudden Perturbation by Orlov, Yu. S., Nikolaev, S. V., Ovchinnikov, S. G., Nesterov, A. I.

“…A theoretical model based on the relaxation equation for the density matrix has been proposed to describe the ultrafast time dynamics of magnetically ordered…”
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Fluctuations of the Multiplicity of Co3+ Ions and Softening of the Phonon Spectrum of Rare-Earth Cobalt Oxides by Orlov, Yu. S., Dudnikov, V. A., Sokolov, A. E., Ovchinnikova, T. M., Shestakov, N. P., Ovchinnikov, S. G.

“…An unconventional temperature dependence of infrared absorption spectra of rare-earth cobalt oxides LaCoO 3 and GdCoO 3 has been studied experimentally and…”
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Effect of Crystal Field on the Electronic Structure of the Two-Band Hubbard Model with Spin Crossover by Orlov, Yu. S., Nikolaev, S. V., Dudnikov, V. A.

“…We consider the change in the electronic structure of the two-band Hubbard model in the regime of strong electron correlations with spin crossover upon the…”
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Light-Induced Ultrafast Dynamics of Spin Crossovers under High Pressure by Orlov, Yu. S., Nikolaev, S. V., Nesterov, A. I., Ovchinnikov, S. G.

“…Within the multielectron model of magnetic insulator with two different spin terms at each cation and spin crossover under high pressure we have studied…”
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Effect of Gd and Sr Ordering in A Sites of Doped Gd0.2Sr0.8CoO3−δ Perovskite on Its Structural, Magnetic, and Thermodynamic Properties by Dudnikov, V. A, Orlov, Yu. S, Gavrilkin, S. Yu, Gorev, M. V, Vereshchagin, S. N, Solovyov, L. A, Perov, N. S, Ovchinnikov, S. G

“…Magnetic and thermodynamic properties of perovskite Gd0.2Sr0.8CoO3−δ, with ordered and disordered states of Gd and Sr in the A-sites of the crystal lattice…”
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Erratum to: Magnetic Properties and Spin Crossover in Transition Metal Oxides with d5 Ions at High Pressures by Orlov, Yu. S., Nikolaev, S. V., Ovchinnikov, S. G.

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Polaron model of a pseudogap state in quasi-one-dimensional systems by Orlov, Yu. S., Dudnikov, V. A.

“…A brief overview of the basic concepts and problems of the physics of quasi-one-dimensional (q1D) compounds is given. A consistent theoretical description of…”
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Structure of Metastable Sr0.8Dy0.2Co3 – δ Phases and Their Electrical and Magnetic Properties by Dudnikov, V. A., Vereshchagin, S. N., Solov’ev, L. A., Gavrilkin, S. Yu, Tsvetkov, A. Yu, Sitnikov, M. V., Orlov, Yu. S.

“…Polycrystalline Sr 0.8 Dy 0.2 Co 3 – δ complex cobalt oxides with a different amount of oxygen (δ = 0.26, 0.44, 0.46) have been prepared by solid-state…”
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Magnetic and structural phase transitions in systems with spin crossover under pressure by Orlov, Yu. S., Nikolaev, S. V., Nesterov, A. I., Ovchinnikov, S. G.

“…The effect of the exchange interaction between excited high-spin terms of transition metal ions in magnetic Mott–Hubbard insulators on the thermodynamics of…”
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Anomalies of the electronic structure and physical properties of rare-earth cobaltites near spin crossover by Dudnikov, V. A., Orlov, Yu. S., Kazak, N. V., Platunov, M. S., Ovchinnikov, S. G.

“…The features of the characteristics of LnCoO 3 cobaltites, where Ln is a rare-earth element, are discussed. Both experiment and theory demonstrate that their…”
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The radioisotope complex project "RIC-80" at the Petersburg Nuclear Physics Institute by Panteleev, V N, Barzakh, A E, Batist, L Kh, Fedorov, D V, Ivanov, V S, Moroz, F V, Molkanov, P L, Orlov, S Yu, Volkov, Yu M

“…The high current cyclotron C-80 capable of producing 40-80 MeV proton beams with a current of up to 200 μA has been constructed at Petersburg Nuclear Physics…”
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Structural, Magnetic, and Thermodynamic Properties of Ordered and Disordered Cobaltite Gd0.1Sr0.9CoO3 – δ by Dudnikov, V. A., Kazak, N. V., Orlov, Yu. S., Vereshchagin, S. N., Gavrilkin, S. Yu, Tsvetkov, A. Yu, Gorev, M. V., Veligzhanin, A. A., Trigub, A. L., Troyanchuk, I. O., Ovchinnikov, S. G.

“…The effect of cationic and anionic orderings on the crystal structure and magnetic properties of substituted rare-earth cobaltites Gd 0.1 Sr 0.9 CoO 3 – δ was…”
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Effect of the Interatomic Exchange Interaction on the Magnetic Phase Transitions in Spin Crossover Systems under High-Pressure by Ovchinnikov, S. G., Orlov, Yu. S., Nikolaev, S. V., Nesterov, A. I., Ovchinnikova, T. M.

“…The phase diagram of an antiferromagnet with the spin crossover from the high-spin to low-spin state with S = 0 with increasing external pressure has been…”
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Low-Temperature Schottky Anomalies and the Magnetic State of the p Electrons of Oxygen in Substituted Gd0.4Sr0.6CoO3 – δ Cobaltites by Orlov, Yu. S., Dudnikov, V. A., Platunov, M. S., Gorev, M. V., Velikanov, D. A., Kazak, N. V., Gavrilkin, S. Yu, Solov’ev, L. A., Veligzhanin, A. A., Vereshchagin, S. N., Ovchinnikov, S. G.

“…The XANES spectra (X-ray absorption near-edge spectra) at the K edge of Co and the L 3 edge of Gd in polycrystalline Gd 0.4 Sr 0.6 CoO 3 – δ rare-earth oxides…”
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Mineralogy, petro-, and geochemistry of the composite dikes of the Takalkan ore-magmatic cluster (Polousny synclinorium of the Verkhoyansk–Kolyma orogenic area) by Trunilina, V. A., Roev, S. P., Orlov, Yu. S.

“…For the first time for the region, the composition of the composite dikes is studied on the example of the Takalkan ore–magmatic cluster in the Polousny Range…”
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Electronic Structure and Conductivity of a Disordered A1 –xBx Binary Alloy in the Cluster Approach for the Hubbard Model by Nikolaev, S. V., Orlov, Yu. S., Dudnikov, V. A.

“…We propose a method for calculating the electronic band structure of disordered systems with strong electron correlations. Various approaches to the…”
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