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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakharov Yu. V., Mankov Yu. I., Titov L. S.
Заглавие : Anisotropy of the magnetoresistance along and across domain-walls in a ferromagnet
Место публикации : J. Phys. I. - 1991. - Vol. 1, Is. 5. - P.759-764. - ISSN 1155-4304
Примечания : Cited References: 20
Предметные рубрики: SUPERCONDUCTIVITY
HOMO6S8
Аннотация: We discuss some peculiarities of the conduction electron motion in the vicinity of domain walls which lead to an anisotropy of the magnetoresistance. We also discuss the case of single crystals of ErRh4B4 and HoMo6S8 where magnetoresistance with the same qualitative features has been observed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : KHVAN D. C., KIM P. D.
Заглавие : ASYMMETRIC HIGH-FREQUENCY DOMAIN-WALL OSCILLATION
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1990. - Vol. 32, Is. 9. - P2549-2553. - ISSN 0367-3294
Примечания : Cited References: 4
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vyunishev A. M., Aleksandrovsky A. S., Zaitsev A. I., Slabko V. V.
Заглавие : Cerenkov nonlinear diffraction of femtosecond pulses
Место публикации : J. Opt. Soc. Am. B: Optical Society of America, 2013. - Vol. 30, Is. 7. - P.2014-2021. - ISSN 0740-3224, DOI 10.1364/JOSAB.30.002014
Примечания : Cited References: 43. - The work was partially supported by the Grant of the President of the Russian Federation MK-250.2013.2, by RFBR through Grant No. 12-02-31167, by the Ministry of Education and Science of the Russian Federation (Contract No. 14.B37.21.0730), by Krasnoyarsk Regional Fund of Science and Technical Activity Support, by PSB RAS Project 2.5.2, and by SFU Grant F12.
Предметные рубрики: STRONTIUM BARIUM NIOBATE
2ND-HARMONIC GENERATION
PHOTONIC CRYSTAL
DOMAIN-WALLS
MODULATION
Аннотация: Cerenkov nonlinear diffraction of femtosecond pulses in one-dimensional nonlinear photonic crystal of strontium tetraborate was studied theoretically and experimentally in both frequency and time domains. Spectral features of second harmonic radiation were measured in the course of mapping the nonlinear photonic crystal structure. The local second harmonic spectrum demonstrates complex angular behavior within the beam cross section. The spectral width of the second harmonic radiation is found to be fundamental beam size-dependent, and optimal focusing should be used for exact conversion of the fundamental spectrum into the second harmonic one. Experimental results are in excellent agreement with calculations. Maximum second harmonic generation efficiency was up to 2.1% at pumping by a femtosecond oscillator. (C) 2013 Optical Society of America
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A.S., Vyunishev A.M., Zaitesv A.I., Zamkov A.V.
Заглавие : Characterization of Domain Structure in Strontium Tetraborate Crystals via Nonlinear Diffraction
Место публикации : Известия высших учебных заведений. Физика. - 2008. - Т. 51, № 10/2. - С. 120-125
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fedorov A. S., Visotin M. A., Gerasimov V. S., Polyutov S. P., Avramov P. A.
Заглавие : Charge transfer plasmons in the arrays of nanoparticles connected by conductive linkers
Место публикации : J. Chem. Phys. - 2021. - Vol. 154, Is. 8. - Ст.012009. - ISSN 00219606 (ISSN), DOI 10.1063/5.0040128
Примечания : Cited References: 41. - This study was supported by the Russian Science Foundation, Project No. 18-13-00363
Аннотация: Charge transfer plasmons (CTPs) that occur in different topology and dimensionality arrays of metallic nanoparticles (NPs) linked by narrow molecular bridges are studied. The occurrence of CTPs in such arrays is related to the ballistic motion of electrons in thin linkers with the conductivity that is purely imaginary, in contrast to the case of conventional CTPs, where metallic NPs are linked by thick bridges with the real optical conductivity caused by carrier scattering. An original hybrid model for describing the CTPs with such linkers has been further developed. For different NP arrays, either a general analytical expression or a numerical solution has been obtained for the CTP frequencies. It has been shown that the CTP frequencies lie in the IR spectral range and depend on both the linker conductivity and the system geometry. It is found that the electron currents of plasmon oscillations correspond to minor charge displacements of only few electrons. It has been established that the interaction of the CTPs with an external electromagnetic field strongly depends on the symmetry of the electron currents in the linkers, which, in turn, are fully governed by the symmetry of the investigated system. The extended model and the analytical expressions for the CTPs frequencies have been compared with the conventional finite difference time domain simulations. It is argued that applications of this novel type of plasmon may have wide ramifications in the area of chemical sensing.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Ershov A. E., Bikbaev R. G., Rasskazov I. L., Gerasimov V. S., Timofeev I. V., Polyutov S. P., Karpov S. V.
Заглавие : Collective resonances in hybrid photonic-plasmonic nanostructures
Коллективы : International Conference on Metamaterials and Nanophotonics
Место публикации : J. Phys.: Conf. Ser. - 2020. - Vol. 1461, Is. 1. - Ст.012046. - DOI 10.1088/1742-6596/1461/1/012046
Примечания : Cited References: 11. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No. 18-42-240013); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Аннотация: We present the theoretical model to predict the spectral position of Rayleigh anomalies emerged in hybrid system consisting of periodic array of plasmonic nanodisks embeded into the middle of defect layer of 1D photonic crystal (PhC). The spectral positions of these new emerged Rayleigh anomalies agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Artyushenko P. V., Mironov V. A., Morozov D. I., Shchugoreva I. A., Borbone N., Tomilin F. N., Kichkailo A. S.
Заглавие : Computational approach to design of aptamers to the receptor binding domain of sars-cov-2
Место публикации : Sib. Med. Rev. - 2021. - Vol. 2021, Is. 2. - P.66-67. - ISSN 18199496 (ISSN), DOI 10.20333/2500136-2021-2-66-67; Сиб. мед. обозрение
Примечания : Cited References: 5
Аннотация: The aim of the research. In this work, in silico selection of DNA-aptamers to the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein was performed using molecular modeling methods. Material and methods. A new computational approach to aptamer in silico selection is based on a cycle of simulations, including the stages of molecular modeling, molecular docking, molecular dynamic simulations, and quantum chemical calculations. To verify the obtained calculated results flow cytometry, fluorescence polarization, and small-angle X-ray scattering methods were applied. Results. An initial library consisted of 256 16-mer oligonucleotides was modeled. Based on molecular docking results, the only one aptamer (Apt16) was selected from the library as a starting aptamer to the RBD protein. For Apt16/RBD complex, molecular dynamic and quantum chemical calculations revealed the pairs of nucleotides and amino acids whose contribution to the binding between aptamer and RBD is the largest. Taking into account these data, Apt16 was subjected to the structure modifications in order to increase the binding with the RBD. Thus, a new aptamer Apt25 was designed. The procedure of 1) aptamer structure modeling/modification, 2) molecular docking, 3) molecular dynamic simulations, 4) quantum chemical calculations was performed sev-eral times. As a result, four aptamers (Apt16, Apt25, Apt27, Apt31) to the RBD were designed in silico without any preliminary experimental data. Binding of the each modeled aptamer to the RBD was studied in terms of interactions between residues in protein and nucleotides in the aptamers. Based on the simulation results, the strongest binding with the RBD was predicted for two Apt27 and Apt31aptamers. The calculated results are in good agreement with experimental data obtained by flow cytometry, fluorescence polarization, and small-angle X-ray scattering methods. Conclusion. The proposed computational approach to selection and refinement of aptamers is universal and can be used for wide range of molecular ligands and targets.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : KIM P. D., HVAN D. C.
Заглавие : CONSTRAINED OSCILLATION OF THE MAGNETIC DOMAIN-WALL ON HIGH-FREQUENCIES
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1982. - Vol. 24, Is. 8. - P2300-2304. - ISSN 0367-3294
Примечания : Cited References: 8
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Li O. A., Komogortsev S. V., Fel'k V. A.
Заглавие : Dipolar interactions and magnetic hysteresis in random array of single-domain nanoparticles
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2017): 1-7 July 2017 : book of abstracts. - 2017. - Ст.2PO-I1-46. - P.275
Примечания : Cited References: 2. - Support by Russian Foundation for Basic Research, Grant No. 16-03-00969 is acknowledged.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Boev N. M., Izotov A. V., Solovev P. N.
Заглавие : Domain structure and magnetization reversal in multilayer structures consisting of thin permalloy films separated with nonmagnetic interlayers
Коллективы : Ministry of Science and Higher EducationMinistry of Science and Higher Education, PolandEuropean Commission
Место публикации : Russ. Phys. J. - 2021. - Vol. 64, Is. 6. - P.1160-1167. - ISSN 1064-8887, DOI 10.1007/s11182-021-02436-w. - ISSN 1573-9228(eISSN)
Примечания : Cited References: 30. - This work was financially supported by the Ministry of Science and Higher Education under agreement No. 075-11-2019-054 November 22, 2019
Предметные рубрики: MICROMAGNETIC CALCULATION
MAGNETOMETER
SIMULATION
NOISE
Аннотация: Using numerical micromagnetic modeling, we have investigated the development of domain structure and magnetization reversal in multilayer thin-film structures. The permalloy (Ni80Fe20) magnetic layers had the inplane uniaxial and perpendicular magnetic anisotropy. We found that as the thickness of nonmagnetic interlayers decreases, the in-plane configuration of magnetic moments in the permalloy layers transforms from a single domain state to stripe domains, which is caused by the increase of magnetostatic interaction between layers. In structures with "thick" interlayers, even weak magnetostatic interaction enforces the neighboring single domain permalloy layers to have opposite orientations of magnetic moments. The saturation field of such samples increases linearly with the number of layers. By analyzing the dynamic characteristics of multilayers, we determined the optimum number of layers ensuring the maximum conversion efficiency of wideband microwave microstrip sensors of weak magnetic fields.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kirenskii L. V., Pynko V. G., Obrastsova L. M.
Заглавие : Domain structure of double layer single crystal films of iron
Место публикации : Czech. J. Phys. - 1971. - Vol. B21, no. 4-5. - P.513-515. - ISSN 0011-4626
Предметные рубрики: SPIN-PEIERLS TRANSITION
COMPOUND CUGEO3
SYSTEM CUGEO3
STATE
Аннотация: The magnetostriction of CuGcO(3) single crystals has been measured in the temperature range from 5 to 16 K in magnetic fields up to 12 T. Giant values of the magnetostrictive strains along the b-axis is observed near the phase transition from the dimerized phase to the high field magnetic phase. The field induced magnetostriction in the antiferromagnetic phase is considerably smaller than in the dimerized phase.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Parshin A. M., Gunyakov V. A., Zyryanov V. Ya., Shabanov V. F.
Заглавие : Domain structures in nematic liquid crystals on a polycarbonate surface
Место публикации : Int. J. Mol. Sci. - 2013. - Vol. 14, Is. 8. - P.16303-16320. - ISSN 1422-0067, DOI 10.3390/ijms140816303
Ключевые слова (''Своб.индексиров.''): liquid crystal--domain--polymer structure
Аннотация: Alignment of nematic liquid crystals on polycarbonate films obtained with the use of solvents with different solvations is studied. Domain structures occurring during the growth on the polymer surface against the background of the initial thread-like or schlieren texture are demonstrated. It is established by optical methods that the domains are stable formations visualizing the polymer surface structures. In nematic droplets, the temperature-induced transition from the domain structure with two extinction bands to the structure with four bands is observed. This transition is shown to be caused by reorientation of the nematic director in the liquid crystal volume from the planar alignment to the homeotropic state with the pronounced radial configuration of nematic molecules on the surface. The observed textures are compared with different combinations of the volume LC orientations and the radial distribution of the director field and the disclination lines at the polycarbonate surface.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : CHZHAN A. V., KIM P. D., DROKIN N. A., TURPANOV I. A.
Заглавие : DOMAIN-STRUCTURE IN FILMS OF MAGNETIC CDCR2SE4 SEMICONDUCTOR
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1984. - Vol. 26, Is. 4. - P1177-1179. - ISSN 0367-3294
Примечания : Cited References: 4
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : HUAN D. C., KIM P. D., BOGATYREVA L. A.
Заглавие : DOMAIN-WALL FRICTION AT SMALL RATES IN WEAK FERROMAGNETS
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1984. - Vol. 26, Is. 5. - P1555-1557. - ISSN 0367-3294
Примечания : Cited References: 11
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Kim P. D.
Заглавие : Domain-wall resonance in thin magnetic-films
Место публикации : Zhurnal Eksperim. Teor. Fiz.: MEZHDUNARODNAYA KNIGA, 1981. - Vol. 80, Is. 6. - P.2283-2297. - ISSN 0044-4510
Примечания : Cited References: 18
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : TURPANOV I. A., CHZHAN A. V., KIM P. D., KONONOV V. P.
Заглавие : DOMAIN-WALL STABILIZATION IN CDCR2SE4 MAGNETIC SEMICONDUCTOR-FILMS
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1982. - Vol. 24, Is. 6. - P1858-1860. - ISSN 0367-3294
Примечания : Cited References: 6
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Drokina T. V., Kim P. D., Zvezdin A. K., Redko V. G.
Заглавие : Effect of excited field amplitude on domain boundary resonance
Место публикации : Fiz. Tverd. Tela. - 1981. - Vol. 23, Is. 1. - P.304-306. - ISSN 0367-3294
Примечания : Cited References: 7
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Drokina T. V., Starostin Y. V.
Заглавие : Effect of magnetization and rare-earth ion concentration on domain-wall dynamic parameters
Место публикации : Fiz. Tverd. Tela. - 1981. - Vol. 23, Is. 4. - P.1195-1197. - ISSN 0367-3294
Примечания : Cited References: 7
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Parshin A. M., Gunyakov V. A., Zyryanov V. Ya., Shabanov V. F.
Заглавие : Electric and magnetic field-assisted orientational transitions in the ensembles of domains in a nematic liquid crystal on the polymer surface
Коллективы : Russian Foundation for Basic Research [12-03-00816]; Siberian Branch of the Russian Academy of Sciences (SB RAS) [30, 24.29, 24.32]; SB RAS through a Taiwan-SB-RAS joint project
Место публикации : Int. J. Mol. Sci. - 2014. - Vol. 15, Is. 10. - P.17838-17851. - ISSN 1422-0067, DOI 10.3390/ijms151017838
Примечания : Cited References: 21. - This work was partially supported by the Russian Foundation for Basic Research (project No. 12-03-00816), and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Grants Nos. 30, 24.29, 24.32, and by SB RAS through a Taiwan-SB-RAS joint project.
Предметные рубрики: FRANK CONSTANTS
INTERFACE
ALIGNMENT
DISCLINATIONS
STABILITY
COATINGS
DIRECTOR
Ключевые слова (''Своб.индексиров.''): liquid crystal--polycarbonate--domain structure--electric field--magnetic field
Аннотация: Using electro- and magneto-optical techniques, we investigated orientational transitions in the ensembles of domains in a nematic liquid crystal on the polycarbonate film surface under the conditions of competing surface forces that favor radial and uniform planar alignment of nematic molecules. Having analyzed field dependences of the intensity of light passed through a sample, we established the threshold character of the orientational effects, plotted the calculated intensity versus magnetic coherence length, and compared the latter with the equilibrium length that characterizes the balance of forces on the polymer surface.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Kretinin V. V., Panasevich A. M., Yanushkevich K. I.
Заглавие : Enhancement of the magnetocapacitance effect in an external electric field in LaxBi1-xFeO3 films
Место публикации : J. Exp. Theor. Phys.: MAIK Nauka-Interperiodica / Springer, 2015. - Vol. 121, Is. 3. - P.422-428. - ISSN 1063-7761, DOI 10.1134/S1063776115090022
Примечания : Cited References: 28. - This work was supported by the Russian Foundation for Basic Research (project no. 12-02-00125-a) and by the State Task no. 114090470016.
Предметные рубрики: MAGNETIC DOMAIN-WALLS
BIFEO3 FILMS
MULTIFERROICS
Аннотация: The goal of the study is to determine the value of magnetocapacitance under the substitution of lanthanum for bismuth in thin LaxBi1-xFeO3 films and to find out the effect of an external bias electric field on the magnetocapacitance effect. To solve this task, the dielectric permittivity, the magnetic permeability, and the loss tangent are measured in LaxBi1-xFeO3 films in magnetic fields of up to 8 kOe in the range of temperatures 100 K < T < 1000 K. Maxima of the permittivity and permeability at low temperatures and the dependence of the permeability on the prehistory of a sample are found. An increase in the magnetocapacitance due to the substitution of lanthanum for bismuth is observed. A giant enhancement of magnetocapacitance in an external electric bias field is revealed. These phenomena are attributed to the rearrangement of the domain structure. © 2015, Pleiades Publishing, Inc.
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