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    Паршин, Александр Михайлович.
    Отклик гибридно-упорядоченного нематика с поверхностной линией дисклинации на импульс магнитного поля / А. М. Паршин // Жидк. кристаллы и их практич. использ. - 2021. - Т. 21, № 3. - С. 60-67 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2021.3.60. - Библиогр.: 23 . - ISSN 1991-3966. - ISSN 2499-9644
   Перевод заглавия: Response of a hybrid-aligned nematic with a surface disclination line to a magnetic field pulse

РУБ Crystallography
Рубрики:
LIQUID-CRYSTAL
   DOMAIN-STRUCTURE
   INTERFERENCE
   DYNAMICS
   BEHAVIOR
   FILM
Кл.слова (ненормированные):
нематический жидкий кристалл -- поликарбонат -- гибридно-упорядоченный слой -- интерференция света -- рассеяние света -- импульсное магнитное поле -- nematic liquid crystal -- polycarbonate -- domain structure -- light interference -- light scattering -- magnetic field
Аннотация: Исследовано оптическое пропускание гибридно-упорядоченного нематического слоя с поверхностной линией дисклинации, деформированного импульсным магнитным полем. Получены выражения для времен реакции на полевое воздействие и релаксации жидкого кристалла к недеформированному состоянию. Время реакции оказалось существенно больше расчетного значения и сопоставимым с длительностью импульса магнитного поля. Выведены зависимости интенсивности света от разности фаз между обыкновенным и необыкновенным лучами с учетом рассеяния. Для процесса релаксации получено хорошее совпадение экспериментальной и расчетной временных зависимостей интенсивности лазерного излучения, прошедшего через весь слой жидкого кристалла, за исключением тонкого переходного приповерхностного слоя. Аномалия хода кривой релаксации в переходном слое рассмотрена в рамках известных модельных представлений.
The optical transmission of a hybrid-ordered nematic layer with a surface disclination line, strained by a pulsed magnetic field, is studied. The expressions for the reaction times to the field action and relaxation of a liquid crystal to an untrained state are obtained. The experimental reaction time turned out to be significantly longer than its calculated value and comparable to the magnetic field pulse duration. The light intensity dependences on the phase difference between the ordinary and extraordinary rays, taking into account scattering are derived. For the relaxation process, good agreement is obtained between the experimental and calculated time dependences of the laser radiation intensity transmitted through the entire liquid crystal layer, with the exception of a thin transitional near-surface layer. The anomaly in the course of the relaxation curve run in the transition layer is considered within the framework of the known model concepts.

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Держатели документа:
Институт физики им. Л. В. Киренского, ФИЦ «Красноярский научный центр Сибирского отделения РАН», Академгородок 50, 660036 Красноярск, Россия
Сибирский Федеральный университет, пр. Свободный, д. 79, 660041 Красноярск, Россия

Доп.точки доступа:
Parshin A.M.

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Zobov, V. E.
Second moment of multiple-quantum NMR and a time-dependent growth of the number of multispin correlations in solids / V. E. Zobov, A. A. Lundin // J. Exp. Theor. Phys. - 2006. - Vol. 103, Is. 6. - P. 904-916, DOI 10.1134/S1063776106120089. - Cited References: 39 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
NUCLEAR-MAGNETIC-RESONANCE
   LINE-SHAPE
   SPIN SYSTEMS
   DYNAMICS
   SPECTRA
   COHERENCES
   STATE
   BEHAVIOR
   CRYSTAL
   MODEL
Кл.слова (ненормированные):
Correlation methods -- Mathematical models -- Nuclear magnetic resonance spectroscopy -- Spectrum analysis -- Time series analysis -- Four-spin time correlation -- Multispin correlations -- Second moment -- Time power series -- Quantum theory
Аннотация: The time evolution of multispin correlations (the growth of the number of correlated spins as a function of time) can be observed directly using the multiple-quantum nuclear magnetic resonance spectroscopy of solids. A quantity related to this number, namely, the second moment of the intensity distribution of coherences of different orders in the multiple-quantum spectrum can be calculated using the theory proposed in this work. An approach to the calculation of the four-spin time correlation function through which this moment is expressed is developed. The main sequences of contributions in the expansion of this function into a time power series are summed using the approximation of a large number of neighbors both for systems with a secular dipole-dipole interaction and for systems with a nonsecular effective interaction. An exponential dependence of is obtained. The value of is additionally calculated using an expansion in terms of orthogonal operators for three model examples corresponding to different limiting realizations of spin systems. It is shown that the results of the microscopic theory at least qualitatively agree with both the results obtained for model examples and experimental results obtained recently for adamantane.

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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Semenov Inst Chem Phys, Moscow 117977, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 117977, Russian Federation

Доп.точки доступа:
Lundin, A. A.; Зобов, Владимир Евгеньевич
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    Zobov, V. E.
    Reversible and Irreversible propagation of quantum information and its manifestation in multiple-quantum NMR spectra in solids / V. E. Zobov, A. A. Lundin // J. Exp. Theor. Phys. - 2020. - Vol. 131, Is. 2. - P. 273-279, DOI 10.1134/S1063776120060096. - Cited References: 33. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the State Task 0082-2019-0001 (State Registration Number AAAA-A19-119012890064-7) . - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
DYNAMICS
   LOCALIZATION
   SIMULATIONS
   COHERENCES
Аннотация: On the basis of the earlier developed statistical theory of the growth of the effective size of correlated clusters (the number of correlated spins), an expression for the shape of the multiple-quantum (MQ) NMR spectrum is obtained that takes into account the loss of coherence in a spin system due, for example, to the controlled intervention of the experimenter. It is shown that the scrambling and decoherence processes in the MQ spectrum of the multiparticle system of a solid are not separated, unlike the corresponding spectra of some large isolated molecules [27] in a solution. The relations obtained allow one to extract the necessary information about the above processes (scrambling and decoherence) from the dependence of the MQ spectra on experimental parameters.

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Публикация на русском языке Зобов, Владимир Евгеньевич. Обратимое и необратимое распространение квантовой информации и проявление его в спектрах многоквантового ЯМР в твердом теле [Текст] / В. Е. Зобов, А. А. Лундин // Журн. эксперим. и теор. физ. - 2020. - Т. 158 Вып. 2. - С. 300-308

Держатели документа:
RAS, Fed Res Ctr, Kirensky Inst Phys, KSC,SB, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Semenov Inst Chem Phys, Moscow 117977, Russia.

Доп.точки доступа:
Lundin, A. A.; Зобов, Владимир Евгеньевич; Ministry of Science and Higher Education of the Russian Federation [0082-2019-0001, AAAA-A19-119012890064-7]
}
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Zobov, V. E.
On the short duration limit for the correlation-functions of 2 distant spins at high-temperatures / V. E. Zobov // Zhurnal Eksperimentalnoi Teor. Fiz. - 1991. - Vol. 99, Is. 3. - P. 809-815. - Cited References: 15 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
DYNAMICS
Аннотация: The first term in the expansion in powers of time is found for the correlation function of two spins separated by a large distance in the case of an anisotropic Heisenberg paramagnet.

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Доп.точки доступа:
Зобов, Владимир Евгеньевич
}
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Zobov, V. E.
On the Second Moment of the Multiquantum NMR Spectrum of a Solid / V. E. Zobov, A. A. Lundin // Russ. J. Phys. Chem. B. - 2008. - Vol. 2, Is. 5. - P. 676-683, DOI 10.1134/S1990793108050035. - Cited References: 39 . - ISSN 1990-7931

РУБ Physics, Atomic, Molecular & Chemical
Рубрики:
MULTIPLE-QUANTUM NMR
   DEPENDENT BEHAVIOR
   MAGNETIC-MOMENTS
   SPIN CLUSTERS
   LINE-SHAPE
   DYNAMICS
   COHERENCES
   SYSTEMS
   CRYSTAL
   GROWTH
Аннотация: New experimental data on the time dependence of an increase in the number of correlated spins under the conditions of the observation of the multiquantum NMR spectrum of a solid are processed on the basis of a microscopic theory for describing the growth of the second moment of multiquantum NMR developed by us earlier. As follows from the theory, the growth is an exponential function of time for crystals with quite diverse structures. The results are discussed on the basis of semiphenomenological models.

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Держатели документа:
[Zobov, V. E.] Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Lundin, A. A.] Russian Acad Sci, NN Semenov Chem Phys Inst, Moscow 117977, Russia
ИФ СО РАН

Доп.точки доступа:
Lundin, A. A.; Зобов, Владимир Евгеньевич
}
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Zobov, V. E.
On the radius of convergence of series in powers of time for spin correlation functions of the Heisenberg magnet at high temperature / V. E. Zobov, M. A. Popov // Theor. Math. Phys. - 1997. - Vol. 112, Is. 3. - P. 1182-1191, DOI 10.1007/BF02583049. - Cited References: 22 . - ISSN 0040-5779

РУБ Physics, Multidisciplinary + Physics, Mathematical
Рубрики:
AUTO-CORRELATION FUNCTION
   INFINITE-TEMPERATURE
   PARAMAGNET
   DYNAMICS
   MODEL
Аннотация: The convergence of series in powers of time for spin autocorrelation functions of the Heisenberg magnet are investigated at infinite temperatures on lattices of different dimensions d. The calculation data available at the present time for the coefficients of these series are used to estimate the corresponding radii of convergence, whose growth with decreasing d is revealed and explained in a self-consistent approximation. To this end, a simplified nonlinear equation corresponding to this approximation is suggested and solved for the autocorrelation function of a system with an arbitrary number Z of nearest neighbors. The coefficients of the expansion in powers of time for the solution are represented in the form of trees on the Bethe lattice with the coordination number Z. A computer simulation method is applied to calculate the expansion coefficients for trees embedded in square, triangular, and simple cubic lattices under the condition that the intersection of tree branches is forbidden. It is found that the excluded volume effect that manifests itself in a decrease in these coefficients and in an increase in the coordinate and exponent of the singularity of the autocorrelation function on the imaginary time axis is intensified with decreasing lattice dimensions.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
Krasnoyarsk State Univ, Krasnoyarsk, Russia
ИФ СО РАН

Доп.точки доступа:
Popov, M. A.; Зобов, Владимир Евгеньевич
}
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    Zobov, V. E.
    On the effect of an inhomogeneous magnetic field on high-frequency asymptotic behaviors of correlation functions of spin lattices / V. E. Zobov, M. M. Kucherov // JETP Letters. - 2018. - Vol. 107, Is. 9. - P. 553-557, DOI 10.1134/S002136401809014X. - Cited References: 39 . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
HEISENBERG PARAMAGNET
   SYSTEMS
   TIME
   RELAXATION
   DYNAMICS
   SPECTRA
Аннотация: Singular points of spin autocorrelation functions on the imaginary time axis, which determine the arguments of exponential high-frequency asymptotic behaviors, have been analyzed. It has been shown that randomly distributed inhomogeneous magnetic fields expand the wings of spectra of autocorrelation functions and, thereby, intensify the heating of a system subjected to variable magnetic fields, which are used to create effective Hamiltonians or at the saturation of inhomogeneously broadened EPR lines.

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Публикация на русском языке Зобов, Владимир Евгеньевич. О влиянии неоднородного магнитного поля на высокочастотные асимптотики корреляционных функций спиновых решеток [Текст] / В. Е. Зобов, М. М. Кучеров // Письма в Журн. эксперим. и теор. физ. - 2018. - Т. 107 Вып. 9-10. - С. 578-582

Держатели документа:
Russian Acad Sci, Siberian Branch, Fed Res Ctr KSC, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Space & Informat Technol, Krasnoyarsk 660074, Russia.

Доп.точки доступа:
Kucherov, M. M.; Зобов, Владимир Евгеньевич
}
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Zobov, V. E.
Effect of intramolecular interaction on time growth of second moment of multiple quantum NMR in solids / V. E. Zobov, A. A. Lundin // INTERNATIONAL CONFERENCE ON RESONANCES IN CONDENSED MATTER: ALTSHULER100. Ser. Journal of Physics Conference Series : IOP PUBLISHING LTD, 2011. - Vol. 324: International Conference on Resonances in Condensed Matter (JUN 21-25, 2011, Kazan, RUSSIA). - Ст. 12010, DOI 10.1088/1742-6596/324/1/012010. - Cited References: 12 . - ISBN 1742-6588

РУБ Physics, Condensed Matter
Рубрики:
COHERENCES
DYNAMICS
Кл.слова (ненормированные):
Dipole dipole interactions -- Double-quantum -- Intramolecular interactions -- Multiple quantum NMR -- Nuclear spin system -- Quantum spectrum -- Rate increase -- Second moments -- Solids containing methyl groups -- Time dependence -- Functional groups -- Quantum optics -- Solids -- Spin dynamics -- Hamiltonians
Аннотация: The time dependence of the NMR multiple quantum spectrum in solids containing methyl groups is investigated. We studied both of types of the nuclear spin systems: namely linking by secular part of the mutual dipole-dipole interaction and linking by effective double quantum Hamiltonian. It is revealed for the first type of systems the rate with the time of the growing up of the second moment when intramolecular interaction is present becomes less in compare with situation when a strong intramolecular interaction is absent. On the contrary for the second type of Hamiltonian the above rate increases.

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Держатели документа:
[Zobov, V. E.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
L.V. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russian Federation
N.N. Semenov Institute of Chemical Physics, RAS, 117977, Moscow, Russian Federation

Доп.точки доступа:
Lundin, A. A.; Зобов, Владимир Евгеньевич
}
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X-ray transient absorption spectroscopy by an ultrashort x-ray-laser pulse in a continuous-wave IR field / X. Shi, Y. Wu, J. G. Wang [et al.] // Phys. Rev. A. - 2020. - Vol. 101, Is. 2. - Ст. 023401, DOI 10.1103/PhysRevA.101.023401. - Cited References: 56. - Grants from the National Basic Research Program of China (Grant No. 2017YFA0403200), National Natural Science Foundation of China (Grants No. 11604197, No. 11934004, and No. 11974230), the Science Challenge Program of China (Grants No. TZ2018005 and No. TZ2016005), and the Organization Department of CCCPC are acknowledged. V.K. acknowledges financial support from Swedish Research Council within the State Contract of the Ministry of Education and Science of the Russian Federation for Siberian Federal University for Scientific Research in 2017-2019 (Project No. 3.2662.2017) . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
MOLECULAR NITROGEN
   TIME
   DYNAMICS
   PHASE
   SPECTRA
   DECAY
Аннотация: X-ray transient absorption spectra (XTAS) of molecules are theoretically investigated in a femtosecond x-ray pump and continuous-wave (cw) infrared (IR)-control scenario. The scheme is exemplified by a CO molecule resonantly pumped into carbon and oxygen core-excited 1s→π∗ states by a weak femtosecond x-ray pulse, while dynamic Stark shifts are induced by the cw IR-control radiation. As a result, significant shoulder structures appear in XTAS showing strong dependence on the phase of IR radiation relative to the envelope of the x-ray pulse. Due to a significant difference in the frequencies of the two pulses, the present XTAS scheme provides much clear interpretation of the dynamic Stark effects as compared to the attosecond UV transient absorption scenario. Within the suggested two-level model, where the total spectrum is decomposed as incoherent superposition of contributions from different vibrational excitations weighted by the Franck-Condon Factors, all spectral structures can be well identified and interpreted in a good agreement with the full-scale molecular simulations. Well-characterized XTAS in the proposed IR-control scheme can be applied for fine phase synchronization between IR and x-ray pulses, highly demanded in modern experiments on x-ray free-electron lasers.

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Держатели документа:
Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China.
Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China.
Peking Univ, Ctr Appl Phys & Technol, Beijing 100084, Peoples R China.
Royal Inst Technol, Theoret Chem & Biol, S-10691 Stockholm, Sweden.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Shi, Xin; Wu, Yong; Wang, Jian Guo; Kimberg, V.; Кимберг, Виктор Валерьевич; Zhang, Song Bin
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10.

Val'kov, V. V.
Pseudogap formation in copper oxide superconductors with inclusion of spin and charge fluctuations / V. V. Val'kov, A. A. Golovnya, M. M. Korovushkin // Phys. Solid State. - 2011. - Vol. 53, Is. 10. - P. 2001-2004, DOI 10.1134/S1063783411100349. - Cited References: 15. - This study was supported by the Presidium of the Russian Academy of Sciences (Program "Quantum Physics of Condensed Matter"), the Russian Foundation for Basic Research (project no. 09-02-00127), the Siberian Branch of the Russian Academy of Sciences (Interdisciplinary Integration project no. 53), and the Ministry of Education and Science of the Russian Federation (Russian Federal Targeted Program "Scientific and Scientific-Pedagogical Personnel of the Innovative Russia" in 2009-2013). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
ANTIFERROMAGNETS
DYNAMICS
Аннотация: The influence of spin and charge fluctuations on the pseudogap formation in cuprate superconductors has been studied using the diagram technique for Hubbard operators. It has been shown that the joint inclusion of the spin and charge fluctuations leads to the formation of "shadow" bands with a strong modulation of the spectral intensity and to a decrease in the density of electronic states at the Fermi level.

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Держатели документа:
[Val'kov, V. V.
Golovnya, A. A.
Korovushkin, M. M.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Val'kov, V. V.
Golovnya, A. A.
Korovushkin, M. M.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50-38, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian State Aerospace University, pr. im. Gazety Krasnoyarskii Rabochii 31, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Golovnya, A. A.; Головня, Александр Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Вальков, Валерий Владимирович
}
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11.

Val'kov, V. V.
Kinematic mechanism of the modulation of the spectral intensity in the spatially uniform system of Hubbard fermions / V. V. Val'kov, A. A. Golovnya, M. M. Korovushkin // JETP Letters. - 2011. - Vol. 94, Is. 3. - P. 197-201, DOI 10.1134/S0021364011150148. - Cited References: 21. - We are grateful to R.O. Zaitsev and N.M. Plakida for the constructive criticism and helpful discussions. This work was supported by the Presidium of the Russian Academy of Sciences (program "Quantum Physics of Condensed Matter"), the Russian Foundation for Basic Research (project no. 09-02-00127), the Ministry of Education and Science of the Russian Federation (federal program "Scientific and Pedagogical Personnel of Innovative Russia" for 2009-2013), and the Siberian Branch, the Russian Academy of Sciences (integration project no. 53). The work of A.A.G. and M.M.K. was also supported by the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools (grant no. MK-1300-2011.2) and by the Siberian Branch, Russian Academy of Sciences (Lavrent'ev Competition). . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
SPIN SUSCEPTIBILITY
   ANTIFERROMAGNETS
   DYNAMICS
   CHARGE
   MODEL
Аннотация: Using the exact representation of the Green's function constructed in terms of the Hubbard operators, it has been shown that the kinematic interaction that induces the spin-fluctuation processes in the spatially uniform system of Hubbard fermions leads to significant variations in the spectral intensity A(k, omega) in the Brillouin zone. As a result, the modulation of A(k, omega) appears in the Fermi contour. The sign of the hopping integral within the first coordination sphere is determined by the contour section, where A(k, omega) decreases according to the angle-resolved photoemission spectroscopy data.

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Держатели документа:
[Val'kov, V. V.
Golovnya, A. A.
Korovushkin, M. M.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Val'kov, V. V.
Golovnya, A. A.
Korovushkin, M. M.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Golovnya, A. A.; Головня, Александр Александрович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Вальков, Валерий Владимирович
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12.

Theoretical investigation of molecular and electronic structures of buckminsterfullerene-silicon quantum dot systems / A. S. Fedorov [et al.] // J. Phys. Chem. A. - 2016. - Vol. 120, Is. 49. - P. 9767-9775, DOI 10.1021/acs.jpca.6b06959. - Cited References:20. - The work was supported by Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement 14.613.21.0010, ID RFMEFI61314X0010). We are grateful to the Joint Supercomputer Center of Russian Academy of Sciences, Moscow and Siberian Supercomputer Center of SB RAS, Novosibirsk for the opportunity to use their computer clusters to perform the calculations. S.I. acknowledges partial support from a JST CREST grant. . - ISSN 1089-5639

РУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical
Рубрики:
Si
NANOPARTICLES
DYNAMICS
Аннотация: Density functional theory (DFT) and density functional tight binding (DFTB) molecular dynamics Density functional theory (DFT) and density functional tight binding (DFTB) molecular dynamics (DFTB/MD) simulations of embedding and relaxation of buckminsterfullerene C60 molecules chemisorbed on (001) and (111) surfaces and inside bulk silicon lattice were performed. DFT calculations of chemisorbed fullerenes on both surfaces show that the C60 molecule deformation was very small and the C60 binding energies were roughly ∼4 eV. The charge analysis shows that the C60 molecule charges on (001) and (111) surfaces were between −2 and −3.5 electrons, respectively, that correlates well with the number of C–Si bonds linking the fullerene molecule and the silicon surface. DFT calculations of the C60 molecule inside bulk silicon confirm that the C60 molecule remains stable with the deformation energy values of between 11 and 15 eV for geometries with different C60 configurations. The formation of some C–Si bonds causes local silicon amorphization and corresponding electronic charge uptake on the embedded fullerene cages. Charge analysis confirms that a single C60 molecule can accept up to 20 excessive electrons that can be used in practice, wherein the main charge contribution is located on the fullerene’s carbon atoms bonded to silicon atoms. These DFT calculations correlate well with DFTB/MD simulations of the embedding process. In this process, the C60 molecule was placed on the top of the Si(111) surface, and it was further exposed by a stream of silicon dimers, resulting in subsequent overgrowth by silicon.

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Держатели документа:
Siberian Branch RAS, Fed Res Ctr KSC, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Prospect, Krasnoyarsk 660041, Russia.
Univ Bremen, Bremen Ctr Cormputat Mat Sci, D-28359 Bremen, Germany.
Nagoya Univ, Grad Sch Sci, Inst Transformat Biomol WPI ITbM, Nagoya, Aichi 4648602, Japan.
Nagoya Univ, Grad Sch Sci, Dept Chem, Nagoya, Aichi 4648602, Japan.
Atotech Deutschland GmbH, D-10553 Berlin, Germany.

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Kuzubov, A. A.; Кузубов, Александр Александрович; Kholtobina, A. S.; Kovaleva, E. A.; Knaup, J.; Irle, S.
}
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13.

    Study of the new two-dimensional compound CoC / K. V. Larionov [et al.] // JETP Letters. - 2018. - Vol. 108, Is. 1. - P. 13-17, DOI 10.1134/S0021364018130106. - Cited References: 24. - We are grateful to Prof. Gotthard Seifert, Prof. B.P. Sorokin, and Prof. L.A. Chernozatonskii for the discussion of the results. This work was supported by the Russian Science Foundation (project no. 17-72-20223). The calculations were performed with the use of resources of the Computer Cluster, Materials Modeling and Development Laboratory, National University of Science and Technology MISiS (supported by the Ministry of Education and Science of the Russian Federation, project no. 14.Y26.31.0005), and the Joint Supercomputer Center, Russian Academy of Sciences. . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
TOTAL-ENERGY CALCULATIONS
   WAVE BASIS-SET
   AB-INITIO
   DYNAMICS
Аннотация: A novel quasi-two-dimensional monolayer structure with orthorhombic symmetry based on cobalt carbide, o-CoC, has been considered. This structure supplements a recently discovered family of quasi-two-dimensional compounds based on transition metals. The dynamic stability of a monolayer has been demonstrated. Its mechanical and electronic characteristics have been studied.

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Публикация на русском языке Исследование нового двумерного соединения CoC [Текст] / К. В. Ларионов [и др.] // Письма в Журн. эксперим. и теор. физ. - 2018. - Т. 108 Вып. 1. - С. 14-18

Держатели документа:
Natl Univ Sci & Technol MISiS, Moscow 119049, Russia.
Technol Inst Superhard & Novel Carbon Mat, Troitsk 108840, Russia.
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119334, Russia.

Доп.точки доступа:
Larionov, K. V.; Ларионов, Константин В.; Popov, Z. I.; Vysotin, M. A.; Высотин, Максим Александрович; Kvashnin, D. G.; Sorokin, P. B.; Russian Science Foundation [17-72-20223]; Ministry of Education and Science of the Russian Federation [14.Y26.31.0005]; Joint Supercomputer Center, Russian Academy of Sciences
}
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14.

Sadreev, A. F.
Bound states in the continuum in open quantum billiards with a variable shape / A. F. Sadreev, E. N. Bulgakov, I. . Rotter // Phys. Rev. B. - 2006. - Vol. 73, Is. 23. - Ст. 235342, DOI 10.1103/PhysRevB.73.235342. - Cited References: 24 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
TRANSMISSION
   RESONANCES
   ELECTRON
   DYNAMICS
Аннотация: We show the existence of bound states in the continuum (BICs) in quantum billiards (QBs) that are opened by attaching single-channel leads to them. They may be observed by varying an external parameter continuously, e.g., the shape of the QB. At some values of the parameter, resonance states with vanishing decay width (the BICs) occur. They are localized almost completely in the interior of the closed system. The phenomenon is shown analytically to exist in the simplest case of a two level QB and is complemented by numerical calculations for a real QB.

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Держатели документа:
Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
ИФ СО РАН
Institute of Physics, Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Max-Planck-Institut fur Physik Komplexer Systeme, D-01187 Dresden, Germany

Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Rotter, I.; Садреев, Алмаз Фаттахович
}
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15.

Pichugin, K.
Effective coupling for open billiards / K. . Pichugin, H. . Schanz, P. . Seba // Phys. Rev. E. - 2001. - Vol. 64, Is. 5. - Ст. 56227, DOI 10.1103/PhysRevE.64.056227. - Cited References: 30 . - ISSN 1063-651X

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
QUANTUM CHAOTIC SCATTERING
   MICROWAVE CAVITY
   RESONANCE POLES
   QUANTIZATION
   STATISTICS
   DYNAMICS
   FORMULA
   SYSTEMS
   STATES
Аннотация: We derive an explicit expression for the coupling constants of individual eigenstates of a closed billiard that is opened by attaching a waveguide. The Wigner time delay and the resonance positions resulting from the coupling constants are compared to an exact numerical calculation. Deviations can be attributed to evanescent modes in the waveguide and to the finite number of eigenstates taken into account. The influence of the shape of the billiard and of the boundary conditions at the mouth of the waveguide are also discussed. Finally we show that the mean value of the dimensionless coupling constants tends to the critical value when the eigenstates of the billiard follow random-matrix theory.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic
Univ Gottingen, Inst Nichtlineare Dynam, D-37073 Gottingen, Germany
Max Planck Inst Stromungsforsch, D-37073 Gottingen, Germany
Pedag Univ, Dept Phys, Hradec Kralove, Czech Republic
ИФ СО РАН

Доп.точки доступа:
Schanz, H.; Seba, P.
}
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16.

Optodynamic phenomena in aggregates of polydisperse plasmonic nanoparticles / A. E. Ershov [et al.] // Appl. Phys. B. - 2014. - Vol. 115, Is. 4. - P. 547-560, DOI 10.1007/s00340-013-5636-6. - Cited References: 48. - Authors are thankful to Prof. V. A. Markel (University of Pennsylvania) for supplying program codes for realization of the coupled dipole method for polydisperse metal nanoparticle aggregates. This research was supported by the Russian Academy of Sciences under the Grants 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101); Ministry of Education and Science of Russian Federation under Contract 14.B37.21.0457. . - ISSN 0946-2171. - ISSN 1432-0649

РУБ Optics + Physics, Applied
Рубрики:
SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   NOBLE-METALS
   SILVER
   ELECTRON
   LIQUID
   GENERATION
   DYNAMICS
   FORCES
   GOLD
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures.

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Держатели документа:
Russian Acad Sci, LV Kirenski Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101)]; Ministry of Education and Science of Russian Federation [14.B37.21.0457]
}
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17.

    On the resonant state of magnetization in array of interacting nanodots / P. D. Kim [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 440. - P. 171-174, DOI 10.1016/j.jmmm.2016.12.125. - Cited References:35. - Authors are grateful to V. Ya. Prints for help in preparing dot arrays. Sections 3 and 4 of the work was supported by the Russian Science Foundation, project no. 14-15-00805. Section 2 of the work was supported by Russian Foundation for Basic Research (RFBR) project no. 16-32-00103. . - ISSN 0304-8853. - ISSN 1873-4766
   Перевод заглавия: О резонансных состояниях намагниченности в массивах взаимодействующих наноточек

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
VORTEX
DYNAMICS
VORTICES
Кл.слова (ненормированные):
Nanodots -- Magnetization -- Dispersion law -- Tiel's equation
Аннотация: Development of the interpretation of the phenomenon of the lift of the magnetic resonance frequencies degeneracy caused by the magnetostatic interaction in assemblies of nanodisks has been done. The difference of the resonance behavior of magnetic vortexes in a round and rectangular nanodots has been studied experimentally and explained.

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Доп.точки доступа:
Kim, P. D.; Ким, Пётр Дементьевич; Orlov, V. A.; Орлов, Виталий Александрович; Rudenko, R. Y.; Руденко, Роман Юрьевич; Prokopenko, V. S.; Orlova, I. N.; Kobyakov, A. V.; Кобяков, Александр Васильевич; Russian Science Foundation [14-15-00805]; Russian Foundation for Basic Research (RFBR) [16-32-00103]; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
}
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18.

On the low-frequency resonance of magnetic vortices in micro- and nanodots / P. D. Kim [et al.] // Phys. Solid State. - 2015. - Vol. 57, Is. 1. - P. 30-37, DOI 10.1134/S1063783415010151. - Cited References:57. - This study was supported by the Siberian Branch of the Russian Academyof Sciences within the framework of the Interdisciplinary IntegrationProject No. 26 "Ferromagnetic Film Nanodots: Physics of Phenomena andApplications" (2012-2014). . - ISSN 1063. - ISSN 1090-6460. -

РУБ Physics, Condensed Matter
Рубрики:
EASY-PLANE FERROMAGNETS
   VORTEX CORE
   MAGNON MODES
   DYNAMICS
   FIELD
Аннотация: The resonance motion of the magnetization of thin cylindrical and parallelepiped micro- and nanodots has been studied theoretically and experimentally. Analytical expressions for the external-field dependence of the resonance frequency of the vortex-structure oscillations have been derived taking into account the inertial and damping coefficients. The external-field dependence of the damping parameter has been found theoretically. The influence of the effective mass of a magnetic vortex on its low-frequency dynamics has been discussed.

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Публикация на русском языке О низкочастотном резонансе магнитных вихрей в микро- и нанопятнах [Текст] / П. Д. Ким [и др.] // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2015. - Т. 57 Вып. 1. - С. 29-36

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Krasnoyarsk State Pedag Univ, Krasnoyarsk 660049, Russia.
Krasnoyarsk State Med Univ, Krasnoyarsk 660022, Russia.
Russian Acad Sci, Siberian Branch, Rzhanov Inst Semicond Phys, Novosibirsk 630090, Russia.

Доп.точки доступа:
Kim, P. D.; Ким, Пётр Дементьевич; Orlov, V. A.; Prokopenko, V. S.; Zamai, S. S.; Замай, С. С.; Prints, V. Ya; Rudenko, R. Y.; Руденко, Роман Юрьевич; Rudenko, T. V.; Руденко, Т. В.; Siberian Branch of the Russian Academy of Sciences [26]
}
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19.

Nucleation in finite topological systems during continuous metastable quantum phase transitions / O. Fialko [et al.] // Phys. Rev. Lett. - 2012. - Vol. 108, Is. 25. - Ст. 250402, DOI 10.1103/PhysRevLett.108.250402. - Cited References: 31. - We acknowledge stimulating discussions with Jean-Sebastien Caux and Lincoln Carr. A. K. thanks Massey University for hospitality. O. F., M. C. D., and J. B. were supported by the Marsden Fund (Contract No. MAU0910) administrated by the Royal Society of New Zealand. . - ISSN 0031-9007

РУБ Physics, Multidisciplinary
Рубрики:
SYMMETRY-BREAKING
   VORTEX NUCLEATION
   BROKEN SYMMETRY
   THERMALIZATION
   SUPERFLUID
   DYNAMICS
   STATE
Аннотация: Finite topological quantum systems can undergo continuous metastable quantum phase transitions to change their topological nature. Here we show how to nucleate the transition between ring currents and dark soliton states in a toroidally trapped Bose-Einstein condensate. An adiabatic passage to wind and unwind its phase is achieved by explicit global breaking of the rotational symmetry. This could be realized with current experimental technology.

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Держатели документа:
[Fialko, Oleksandr
Delattre, Marie-Coralie
Brand, Joachim] Massey Univ, Ctr Theoret Chem & Phys, Auckland 0745, New Zealand
[Fialko, Oleksandr
Delattre, Marie-Coralie
Brand, Joachim] Massey Univ, New Zealand Inst Adv Study, Auckland 0745, New Zealand
[Kolovsky, Andrey R.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Kolovsky, Andrey R.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Fialko, O.; Delattre, M.C.; Brand, J.; Kolovsky, A. R.; Коловский, Андрей Радиевич
}
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20.

Measurement of Raman-scattering spectra of Rb2KMoO3F3 crystal: Evidence for controllable disorder in the lattice structure / A. S. Krylov [et al.] // Cryst. Growth Des. - 2014. - Vol. 14, Is. 3. - P. 923-927, DOI 10.1021/cg4008894. - Cited References: 31. - The authors are grateful to Prof. I. N. Flerov for valuable support and useful discussions. The authors acknowledge stimulating discussions with Dr. S. N. Sofronova and Dr. A. S. Aleksandrovsky. The assistance of Dr. S. Skokov is sincerely appreciated. This work was partly supported by Russian Foundation for Basic Research project nos. 11-02-98002-r and 12-02-00056 and integration project SB RAS no. 28, SS-4828.2012.2 grant, and Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" (no. 8379). . - ISSN 1528-7483. - ISSN 1528-7505

РУБ Chemistry, Multidisciplinary + Crystallography + Materials Science, Multidisciplinary
Рубрики:
PHASE-TRANSITIONS
   OXYFLUORIDE
   ELPASOLITE
   (NH4)3MOO3F3
   (NH4)3WO3F3
   TEMPERATURE
   DYNAMICS
   N-2
   Cs
Аннотация: The λ-shaped line width broadening anomalies of octahedron group vibrations in Rb2KMoO3F3 disordered crystal have been revealed in the wide temperature range by Raman technique. The line width of Mo-O and Mo-F vibrations in this crystal is connected with the lattice disorder. The dependence of ordering degree passing the phase transition point history has been discovered. Wide temperature-line width area is found below structural phase transition where different lattice disorder can be obtained at a given temperature by varying the rate of sample cooling. The current study demonstrates the ability of a dynamic temperature regime to control ordering processes in crystals. © 2014 American Chemical Society.

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Держатели документа:
SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
SB RAS, VS Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Kolesnikova, E. M.; Колесникова, Евгения Михайловна; Isaenko, L. I.; Krylova, S. N.; Крылова, Светлана Николаевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Russian Foundation for Basic Research [11-02-98002-r, 12-02-00056]; integration project SB RAS [28, SS-4828.2012.2]; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" [8379]
}
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