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Actual composition and structure of manganese ferrite nanoparticles dispersed in the borate glass matrix / I. G. Vasilyeva [et al.] // Doklady Chemistry. - 2005. - Vol. 401, Is. 1-3. - P. 47-50, DOI 10.1007/s10631-005-0029-y . - ISSN 0012-5008
Кл.слова (ненормированные):
boric acid -- ferrite -- glass -- manganese derivative -- analytic method -- article -- chemical composition -- chemical structure -- nanoparticle -- stoichiometry -- structure analysis -- transmission electron microscopy -- X ray analysis

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Публикация на русском языке Реальный состав и структура наночастиц феррита марганца, диспергированных в матрице боратных стекол [Текст] / И. Г. Васильева [и др.] // Доклады Академии наук. - 2005. - Т. 401 № 3. - С. 349-352

Держатели документа:
Nikolaev Inst. of Inorg. Chemistry, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 3, Novosibirsk, 630090, Russian Federation
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 5, Novosibirsk, 630090, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
All-Russia Research Center, Vavilov State Optical Institute, ul. Babushkina 36/1, St. Petersburg, 192371, Russian Federation

Доп.точки доступа:
Vasilyeva, I. G.; Dovlitova, L. S.; Zaikovskii, V. I.; Malakhov, V. V.; Edel'man, I. S.; Эдельман, Ирина Самсоновна; Stepanov, A. S.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
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Avdeeva, A. Yu.
Splitting of a Tamm plasmon polariton at the interface between a metal and a resonant nanocomposite layer conjugated with a photonic crystal / A. Y. Avdeeva, S. Y. Vetrov, I. V. Timofeev // J. Opt. Soc. Am. B. - 2021. - Vol. 38, Is. 6. - P. 1792-1797, DOI 10.1364/JOSAB.420490. - Cited References: 36. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006. The authors are thankful to Pavel S. Pankin for valuable discussions and comments . - ISSN 0740-3224
Кл.слова (ненормированные):
Dispersion equations -- Finite structures -- Frequency approach -- Nano-composite layers -- Plasmon-polaritons -- Reflectance spectrum -- Resonance frequencies -- Transparent matrix -- Metallic matrix composites
Аннотация: Splitting of a Tamm plasmon polariton at the interface between a metal and a nanocomposite layer conjugated with a photonic crystal (Bragg mirror) has been theoretically investigated. The splitting can be implemented when the Tamm plasmon polariton frequency approaches the resonance frequency of the nanocomposite, which consists of metallic nanoballs dispersed in a transparent matrix. The reflectance spectrum of the p-polarized waves at the normal incidence of light has been calculated. It has been established that the Tamm plasmon polariton splitting significantly depends on the concentration of nanoballs in the nanocomposite layer and its thickness. The solution of the dispersion equation derived for a sample with semi-infinite mirrors has been compared with the spectra obtained for a finite structure by the transfer matrix method.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Авдеева, Анастасия Юрьевна
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Aver'yanov, E. M.
Manifestations of the higher moments of the orientation distribution function of molecules in the spectral properties of an impurity nematic / E. M. Aver'yanov, V. G. Rumyantsev // J. Exp. Theor. Phys. - 2004. - Vol. 98, Is. 6. - P. 1146-1151, DOI 10.1134/1.1777627. - Cited References: 15 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID-CRYSTAL
   SCATTERING
   PHASES
   MATRIX
   ORDER
   DYES
Кл.слова (ненормированные):
Absorption -- Band structure -- Impurities -- Molecular dynamics -- Polarization -- Spectrum analysis -- Distribution function -- Local field parameters -- Splitting -- Temperature dependence -- Nematic liquid crystals
Аннотация: The polarized electronic absorption spectra, orientation ordering, and the special local field features were studied for push-pull linear dye molecules with strong donor-acceptor electronic conjugation of terminal fragments in the matrix of a nematic liquid crystal. The temperature-induced inversion of the sign of the splitting of polarized impurity absorption bands was observed. This effect was shown to be caused by the statistical character of orientation ordering of impurity molecules and manifestation of the higher moments of the orientation distribution function. The dependence of local field parameters (Lorentz tensor components) of impurity molecules on their orientation ordering was established. This dependence was used to reproduce the temperature dependence of the orientation order parameter of the matrix. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Res Inst Organ Intermediates & Dyes, Dolgoprudnyi 141700, Moscow Oblast, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Research Institute of Organic Intermediates and Dyes, Dolgoprudnyi, Moscow oblast, 141700, Russian Federation

Доп.точки доступа:
Rumyantsev, V. G.; Аверьянов, Евгений Михайлович
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Averyanov, E. M.
Relation between orientational order parameters of matrix and probe in nematic liquid-crystals / E. M. Averyanov // Nuovo Cimento Soc. Ital. Fis. D-Condens. Matter At. Mol. Chem. Phys. Fluids Plasmas Biophys. - 1990. - Vol. 12, Is. 9. - P. 1281-1291, DOI 10.1007/BF02450394. - Cited References: 33 . - ISSN 0392-6737

РУБ Physics, Multidisciplinary

Кл.слова (ненормированные):
Liquid crystals -- Phase equilibria, phase transitions and critical points of specific substances

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Держатели документа:
L. V. Kirensky Institute of Physics, USSR Academy of Sciences Siberian Branch, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Аверьянов, Евгений МихайловичAver'yanov; USSR-italy bilateral meeting on liquid crystals(2 ; 1988 ; Sep. 15-21 ; Moscow)
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Averyanov, E. M.
Spectral position control of dye absorption band maximum in an orienting matrix / E. M. Averyanov, V. A. Gunyakov // Molecular Engineering. - 1992. - Vol. 1, N. 4. - P. 311-316
Аннотация: The continuous control of the maximum position να of the dye absorption band (the zero of the derivative dD α(ν)/dν of the cell's optical density D α(ν)) in a nematic matrix is demonstrated experimentally, as a result of changing the angle α between the optical axis of a planar-oriented sample and the plane of polarization of absorbed light incident normal to the optical axis. The theory proposed describes quantitatively the experimental dependence ν(α). The rotation of the polarizer with given frequency ω results in the spectral position modulation of the solute band maximum ν(ω) within ν(α=0°)−ν(90°)=700 cm−1.

Держатели документа:
LV KIRENSKII INST PHYS,KRASNOYARSK 660036,RUSSIA

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Аверьянов, Евгений МихайловичAver'yanov
}
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Baksheev, N. V.
Spin reorientation effect of conductive electrons in iron matrix doped with cobalt / N. V. Baksheev, E. S. Mushailov // Fiz. Tverd. Tela. - 1981. - Vol. 23, Is. 2. - P. 631-633. - Cited References: 9 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Mushailov, E. S.
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Belyaev, B. A.
The effective permittivity of an anisotropic composite of spheroidal particles in a dielectric matrix / B. A. Belyaev, V. V. Tyurnev, S. A. Khodenkov // Tech. Phys. Lett. - 2022. - Vol. 48, Is. 3. - P. 110-114, DOI 10.1134/S1063785022040058. - Cited References: 10. - This study was carried out within the framework of state order FEFE-2020-0013 of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 1063-7850
Кл.слова (ненормированные):
composite material -- anisotropic permittivity -- oblate and prolate particles -- depolarization factors
Аннотация: The concentration dependences of the effective permittivity have been obtained for an anisotropic composite consisting of a dielectric matrix filled with codirectional particles in the form of oblate or prolate ellipsoids of revolution (spheroids). The calculation has been made by solving numerically a system of coupled quadratic and integral equations obtained using the rigorous modification of the quasi-static Bruggeman theory. It is shown that the traditional simplified modification of the Bruggeman theory, which is widely used for calculating anisotropic composites, leads to errors of different signs for electromagnetic waves of the longitudinal and transverse polarizations relative to the spheroid axes. The dependences of the errors on the particle concentration are nonmonotonic and extrema observed in them can exceed 100%. The positions and values of the extrema depend strongly on the ellipticity of particles and the contrast of their permittivity with that of the matrix.

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Публикация на русском языке Беляев, Борис Афанасьевич. Эффективная диэлектрическая проницаемость анизотропного композита из сфероидных частиц в диэлектрической матрице [Текст] / Б. А. Беляев, В. В. Тюрнев, С. А. Ходенков // Письма в Журн. техн. физ. - 2021. - Т. 47 Вып. 23. - С. 22-26

Держатели документа:
Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Khodenkov, S. A.
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Berreman 4 x 4 matrix method for light propagation in a one-dimensional photonic crystal with a twisted-nematic defect layer [Text] / A. J. Archibald, Y. -T. Lin, V. Ya. Zyryanov, W. Lee // Int. Photonics Conf. : Paper in Proceedings. - 2011. - P125

Доп.точки доступа:
Archibald, A.J.; Lin, Y.-T.; Zyryanov, V.Ya.; Lee, W.; International Photonics Conference(December 8-10, 2011 ; Tainan, Taiwan)
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Bikbaev, R. G.
Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons / R. G. Bikbaev, S. Ya Vetrov, I. V. Timofeev // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 10. - P. 2817-2823, DOI 10.1364/JOSAB.36.002817. - Cited References: 44. - The reported study was funded by RFBR according to the research project No 18-32-00053 and financial support RFBR and MOST according to the research project No 19-52-52006. . - ISSN 0740-3224
Кл.слова (ненормированные):
Aluminum oxide -- II-VI semiconductors -- Indium compounds -- Infrared devices -- Optical films -- Phonons -- Photons -- Plasmons -- Q factor measurement -- Tin oxides -- Transfer matrix method -- Transparent conducting oxides -- Zinc oxide
Аннотация: We demonstrate the possibility of using transparent conducting oxides [aluminum-doped zinc oxide (AZO), gallium-doped zinc oxide (GZO), indium tin oxide (ITO)] to form Tamm plasmon polaritons in the near-infrared spectral range where the permittivity of oxides is near zero. The spectral properties of the structures are investigated in the framework of the temporal coupled-mode theory and confirmed by the transfer matrix method. It is found that in the critical coupling conditions, the maximal Q-factor of a Tamm plasmon polariton is achieved when a photonic crystal is conjugated with the AZO film, while at the conjugation with the ITO films, the broadest spectral line is obtained. The sensitivity of the wavelength and spectral width of the Tamm plasmon polariton to changes in the oxide film thickness, bulk concentration of a dopant, and angle of incidence is demonstrated.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Бикбаев, Рашид Гельмединович
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10.

    Bipolar-homogeneous structural phase transition in nematic droplets formed in the polymer matrix in a magnetic field / A. M. Parshin [et al.] // Crystallogr. Rep. - 2009. - Vol. 54, Is. 7. - P1191-1196, DOI 10.1134/S1063774509070098. - Cited Reference Count: 19. - Гранты: This study was supported by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools ( grant no. NSh-3818.2008.3), the Russian Foundation for Basic Research ( project no. 08-03-01007), the Presidium of the Russian Academy of Sciences ( project no. 27.1), and the Siberian Branch of the Russian Academy of Sciences ( project nos. 110 and 144). - Финансирующая организация: President of the Russian Federation [NSh-3818.2008.3]; Russian Foundation for Basic Research [08-03-01007]; Russian Academy of Sciences [27.1, 110, 144] . - DEC. - ISSN 1063-7745
Рубрики:
DISPERSED LIQUID-CRYSTALS
   FRANK CONSTANTS
   ALIGNMENT
Кл.слова (ненормированные):
Bipolar configuration -- Bipolar structure -- Cyanobiphenyls -- Homogeneous structure -- Mutual transformations -- Nematic director -- Nematic droplets -- Order parameter -- Poly(vinyl butyral) -- Structural phase transition -- Temperature range -- Thermal fluctuations -- Crystal structure -- Drop formation -- Liquid crystals -- Magnetic fields -- Nematic liquid crystals -- Phase transitions
Аннотация: The phase transition from the bipolar structure to the homogeneous structure in droplets formed from the nematic liquid crystal 4-n-pentyl-4'-cyanobiphenyl in poly(vinyl butyral) in the presence of a magnetic field has been investigated. The phase transition is associated with the expansion of the regions with a tilted orientation of the director in the vicinity of defects (the disappearance of boojums) and with the alignment of the nematic director lines in the bulk of the droplet in the direction of the magnetic field. In the temperature range T = 24-34A degrees C, cyclic mutual transformations between the bipolar configuration of the nematic director and the homogeneous structure, which have a period of similar to 0.5-3.5 s and result from thermal fluctuations of the order parameter, are observed in droplets 3-15 A mu m in size after the forming field is switched off.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Nazarov, V. G.
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