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Найдено документов в текущей БД: 132

    All-optical switching in a photonic crystal with a defect containing an N-type four-level atomic system
/ V. G. Arkhipkin, S. A. Myslivets // Phys. Rev. A. - 2012. - Vol. 86, Is. 6. - Ст. 063816, DOI 10.1103/PhysRevA.86.063816. - Cited References: 33. - This work was supported in part by the RAS Grants No. 24.29, No. 24.31, and No. 3.9.5, and SB RAS Grants No. 43 and No. 101. . - ISSN 1050-2947
   Перевод заглавия: Полностью оптическое переключение в фотонном кристалле с дефектом, содержащим четырехуровневую атомную систему N-типа
РУБ Optics + Physics, Atomic, Molecular & Chemical + Defects + Optical switches + Phase modulation + Probes + Refractive index

Аннотация: We study the transmission spectra of a one-dimensional photonic crystal with a defect containing a four-level atomic medium that exhibits a greatly enhanced third-order susceptibility while having a vanishing linear susceptibility dependent on the electromagnetically induced transparency. Two ways of controlling the transmission of a photonic crystal are discussed: via absorption, i.e., nonlinear (two-photon) absorption of the probe field enhanced by constructive quantum interference, and via dispersion, which comes down to shifting the resonance frequency of the defect mode for the probe field by varying the refractive index based on the giant Kerr nonlinearity (cross-phase modulation). We demonstrate that such systems enable nonlinear all-optical switching at ultralow intensities of the coupling and switching laser fields.

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Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович

    Redox potentials of gold-palladium powders in aqueous solutions of H2PdCl4
/ O. V. Belousov [et al.] // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 3. - P. 484-488, DOI 10.1134/S0036024412020070. - Cited References: 26 . - ISSN 0036-0244
РУБ Chemistry, Physical + Powders

Аннотация: The redox potential of fine-dispersed and compact bimetallic powders of the palladium-gold system in hydrochloric acid solutions of H2PdCl4 at a temperature of 60A degrees C was studied. It was found that the redox potential increases with gold enrichment of the solid solution in accordance with the Nernst equation. The effect of gold-palladium particle size on this redox potential is shown. The morphology, sizes, and composition of bimetallic particles are determined via transmission electron microscopy and X-ray diffraction analysis.

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Держатели документа:
[Belousov, O. V.
Borisov, R. V.
Parfenov, V. A.
Dorokhova, L. I.] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660041, Russia
[Zharkov, S. M.] Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
[Zharkov, S. M.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Belousov, O. V.; Borisov, R. V.; Zharkov, S. M.; Жарков, Сергей Михайлович; Parfenov, V. A.; Dorokhova, L. I.

    Symmetry breaking for transmission in a photonic waveguide coupled with two off-channel nonlinear defects
/ E. N. Bulgakov, K. N. Pichugin, A. F. Sadreev // Phys. Rev. B. - 2011. - Vol. 83, Is. 4. - Ст. 45109, DOI 10.1103/PhysRevB.83.045109. - Cited References: 50. - This work was partially supported by RFBR Grant No. 09-02-98005-"Siberia" and RFBR Grant No. 11-02-00289. . - ISSN 1098-0121
РУБ Physics, Condensed Matter

Аннотация: We consider light transmission in a two-dimensional (2D) photonic crystal waveguide coupled with two identical nonlinear defects positioned symmetrically aside the waveguide. With the coupled mode theory, we show three scenarios for the transmission. The first one inherits the linear case and preserves the symmetry. In the second scenario, the symmetry is broken because of different light intensities at the defects. In the third scenario, the intensities at the defects are equal but phases of complex amplitudes are different. That results in a vortical power flow between the defects similar to the dc Josephson effect if the input power over the waveguide is applied and the defects are coupled. All of these phenomena agree well with computations based on an expansion of the electromagnetic field into optimally adapted photonic Wannier functions in a 2D photonic crystal.

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Держатели документа:
[Bulgakov, Evgeny
Pichugin, Konstantin
Sadreev, Almas] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Bulgakov, Evgeny] Siberian State Aerosp Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич

    In-situ transmission electron microscopy ivestigation of solid-state reactions in Fe/Si multilayer nanofilms
/ S. M. Zharkov, R. R. Altunin, E. T. Moiseenko // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013 = EASTMag-2013. - P41 . - ISBN 978-5-7444-3124-2



Доп.точки доступа:
Zharkov, S. M.; Жарков, Сергей Михайлович; Altunin, R. R.; Алтунин, Роман Русланович; Moiseenko, E. T.; Моисеенко, Евгений Тимофеевич; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)

    Simulation of conditions for fabrication of optical nanowaveguides in the form of chains of spherical metal nanoparticles by electrostatic functionalization of the process substrate
/ S. V. Karpov, I. L. Rasskazov // Colloid J. - 2013. - Vol. 75, Is. 3. - P. 279-288, DOI 10.1134/S1061933X13030083 . - ISSN 1061-933X
Аннотация: A method is proposed for electrostatic functionalization of substrates used to prepare ordered structures composed of closely spaced plasmon-resonant nanoparticles. The method ensures selective deposition of nanoparticles from the bulk of a colloidal system onto the substrates. This method is based on placing a metal nanotemplate of a required configuration at the opposite side of a substrate, with an electric potential being applied to the template. A mathematical model is developed to ensure that the system parameters responsible for the deposition of metal nanoparticles into ordered single-domain structures on the substrate from a bulk sol in a nonuniform electric field generated by the nanotemplate correspond to the real experimental conditions. Since the degree of imperfection of the synthesized chains governs the applicability of these structures to transmission of the optical excitation at the frequency of the surface plasmon of the particles, the dependence of the degree of imperfection on the physicochemical and electrical parameters of the system is studied using the Brownian-dynamics model. The calculations of the spectral and transmission properties of nanowaveguides of this type are exemplified. В© 2013 Pleiades Publishing, Ltd.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia;

Доп.точки доступа:
Рассказов, Илья Леонидович; Rasskazov, I. L.; Карпов, Сергей Васильевич

    In situ transmission electron microscopy and electron diffraction investigation of solid-state reactions and atomic ordering in Cu/Au bilayer nanofilms
/ S. M. Zharkov [et al.] // J. Sib. Fed. Univ. Chem. - 2013. - Vol. 6, Is. 3. - P. 230-240 ; Журн. СФУ. Сер. "Химия"
   Перевод заглавия: In situ-исследования твердофазных реакций и атомного упорядочения в двухслойных нанопленках Cu/Au методами просвечивающей электронной микроскопии и дифракции электронов
Аннотация: Solid-state reaction processes and atomic ordering in Cu/Au bilayer nanofilms (with the atomic ratio Cu:Au≈50:50) have been studied in situ by the methods of transmission electron microscopy and electron diffraction in the process of heating from room temperature up to 700 ºС at a heating rate of 4-8 ºС/min. The solid-state reaction between the nanolayers of copper and gold has been established to begin at 180 ºС. The process of atomic ordering has been shown to start simultaneously with the process of the formation of the disordered phase of Cu50Au50 at 245 ºС. The formation processes of the ordered phases of: CuAuI (L10 superstructure) and CuAuII (long period superstructure) have been studied, as well as the phase transition processes: disorder - order (the transition of the disordered structure into the ordered one) and order - disorder (the transition of the ordered structure into the disordered one).
Методами просвечивающей электронной микроскопии и дифракции электронов проведены in situ-исследования процессов твердофазных реакций и атомного упорядочения в двухслойных нанопленках Cu/Au (с атомным соотношением Cu:Au≈50:50) при нагреве от комнатной температуры до 700 ºС при скорости нагрева 4-8 ºС/мин. Установлено, что твердофазная реакция между нанослоями меди и золота начинается при 180 ºС. Показано, что процесс атомного упорядочения начинается одновременно с процессом формирования неупорядоченной фазы Cu50Au50 при 245 ºС. Исследованы процессы формирования атомно-упорядоченных фаз: CuAuI (L10 сверхструктура) и CuAuII (длинно-периодическая сверхструктура), а также процессы фазовых переходов беспорядок-порядок (переход неупорядоченной структуры в атомно-упорядоченную) и порядок-беспорядок (переход атомно-упорядоченной структуры в неупорядоченную)

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Доп.точки доступа:
Zharkov, S. M.; Жарков, Сергей Михайлович; Moiseenko, E. T.; Моисеенко, Евгений Тимофеевич; Altunin, R. R.; Алтунин, Роман Русланович; Zeer, G. M.


    Transmission and spectral properties of short optical plasmon waveguides
/ I. L. Rasskazov, V. A. Markel, S. V. Karpov // Opt. Spectrosc. - 2013. - Vol. 115, Is. 5. - P. 666-674, DOI 10.1134/S0030400X13110180 . - ISSN 0030-400X

Аннотация: We study the spectral and transmission properties of optical waveguides in the form of different chain configurations of spherical Ag nanoparticles that can be synthesized under conditions of selective deposition on a dielectric substrate from a nanocolloid. В© 2013 Pleiades Publishing, Ltd.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Penn, Philadelphia, PA 19104 USA
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Markel, V. A.; Karpov, S. V.; Карпов, Сергей Васильевич; Rasskazov, I. L.

    Coupled R and Fe magnetic excitations in RFe 3(BO 3) 4 multiferroics
/ A. M. Kuzmenko [et al.] // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 269-272, DOI 10.4028/www.scientific.net/SSP.190.269 . - ISBN 9783037854365
Аннотация: Various resonance modes were observed in the transmission spectra of rare-earth iron borates RFe 3(BO 3) 4 (R = Nd 3+, Sm 3+, Gd 3+) at the frequency range 100-600 GHz, which were attributed to collective magnetic excitations in the exchange coupled Fe- and R-subsystems, i.e. antiferromagnetic (Fe) resonance and electron transitions in the R-ions. Strong interaction of the Fe and R oscillations was revealed and theoretically analyzed taking into account feature of the R-ion ground state. Intensities of the coupled modes (contributions to magnetic permeability) strongly depend on a difference of Fe and R ions g-factors that allows defining the sign of the latter. In particular, an appreciable intensity of exchange (Nd) modes in NdFe 3(BO 3) 4 is caused by g Nd?,|| < 0 whereas in GdFe 3(BO 3) 4 with gGd ? gFe ? 2 the exchange (Gd) modes were hided due to compensation of Fe and Gd contributions. In SmFe 3(BO 3) 4, despite a negligible Sm g-factor, the Sm modes were clear observed due to their excitation via coupling with the Fe-subsystem. В© (2012) Trans Tech Publications.

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Доп.точки доступа:
Kuzmenko, A. M.; Кузьменко А.М.; Mukhin, A. A.; Ivanov, V.Yu.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)

    In situ transmission electron microscopy and electron diffraction investigations of solid-state reactions in thin-film nanosystems
[Текст] / S. M. Zharkov [et al.] // XII Int. symp. self-propagat. high temper. synth. (SHS-2013) : book of abstracts / org. com. I. N. Flerov [et al.] ; progr. com. V. I. Zinenko [et al.]. - 2013. - P. 203-204


Материалы конференции,
Материалы конференции


Доп.точки доступа:
Zharkov, S. M.; Жарков, Сергей Михайлович; Altunin, R. R.; Алтунин, Роман Русланович; Moiseenko, E. T.; Моисеенко, Евгений Тимофеевич; Varnakov, S. N.; Варнаков, Сергей Николаевич; International symposium on self-propagating high temperature synthesis (12 ; 2013 ; Oct. ; 21–24 ; South Padre Island, USA )

    Solid-state reactions in Fe/Si multilayer nanofilms
/ S. M. Zharkov [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P. 144-149, DOI 10.4028/www.scientific.net/SSP.215.144. - Cited References: 16. - The work was supported by the Presidium of RAS (project No. 24.34), the Russian Foundation for Basic Research (grant #13-02-01265) . - ISSN 1662-9779. - ISSN 978-30383
   Перевод заглавия: Твердофазные реакции в многослойных пленках Fe/Si
Аннотация: Solid-state reaction processes in Fe/Si multilayer nanofilms have been studied in situ by the methods of transmission electron microscopy and electron diffraction in the process of heating from room temperature up to 900ºС at a heating rate of 8-10ºС/min. The solid-state reaction between the nanolayers of iron and silicon has been established to begin at 350-450ºС increasing with the thickness of the iron layer.


Доп.точки доступа:
Ovchinnikov, S. G. \ed.\; Овчинников, Сергей Геннадьевич; Samardak, A. \ed.\; Zharkov, S. M.; Жарков, Сергей Михайлович; Altunin, R. R.; Алтунин, Роман Русланович; Moiseenko, E. T.; Моисеенко, Евгений Тимофеевич; Zeer, G. M.; Зеер Г. М.; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; sept. ; 15-21 ; Vladivostok)

    Optical Tamm states at the interface between a photonic crystal and a nanocomposite with resonance dispersion
/ S. Y. Vetrov, R. G. Bikbaev, I. V. Timofeev // J. Exp. Theor. Phys. - 2013. - Vol. 117, Is. 6. - P. 988-998, DOI 10.1134/S1063776113140185. - Cited References: 28. - This work was supported by the Ministry of Education and Science of the Russian Federation (state contract no. 14.V37.21.0730, federal program "Human Capital for Science and Education in Innovative Russia"); by the Presidium of the Siberian Branch, Russian Academy of Sciences (project no. 24.29); by the Ministry of Education and Science of the Russian Federation (contract no. 14V37.21.0730); by the Division of Physical Sciences, Russian Academy of Sciences (project no. Sh.9.5); by the Presidium of the Russian Academy of Sciences (project nos. 24.29 and 24.31); and by the Siberian Branch, Russian Academy of Sciences (project nos. 43 and 101). . - ISSN 1063-7761. - ISSN 1090-6509
РУБ Physics, Multidisciplinary

Аннотация: Optical Tamm states localized at the edges of a photonic crystal bounded from one or both sides by a nanocomposite have been studied. The nanocomposite consists of metallic nanoinclusions, which have a spherical or orientationally ordered spheroidal shape and are dispersed in a transparent matrix, and is characterized by the resonant effective permittivity. The transmission, reflection, and absorption spectra have been calculated for waves with longitudinal and transverse polarizations in such structures at the normal incidence of light. The spectral manifestation of Tamm states that is due to the existence of negative values of the real part of the effective permittivity has been analyzed for the visible spectral range. It has been established that the characteristics of Tamm states localized at the edge of the photonic crystal depend strongly both on the concentration of nanoballs in the nanocomposite film and on its thickness. Modes formed by two coupled Tamm plasmon polaritons localized at the edges of the photonic crystal adjacent to two nanocomposite layers have been examined. It has been shown that, in the case of the anisotropic nanocomposite layer adjacent to the photonic crystal, each of two orthogonal polarizations of the incident wave corresponds to a specific frequency of the Tamm state localized at the edge; owing to this property, the transmission spectra of such a structure are polarization sensitive.

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

Доп.точки доступа:
Bikbaev, R. G.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ministry of Education and Science of the Russian Federation [14.V37.21.0730, 14V37.21.0730]; Presidium of the Siberian Branch, Russian Academy of Sciences [24.29]; Division of Physical Sciences, Russian Academy of Sciences [Sh.9.5]; Presidium of the Russian Academy of Sciences [24.29, 24.31]; Siberian Branch, Russian Academy of Sciences [43, 101]

    Solid-state synthesis and atomic ordering in thin Cu/Au films (Atomic Ratio, Cu : Au = 3 : 1)
/ E. T. Moiseenko, R. R. Altunin, S. M. Zharkov // Bull. Russ. Acad. Sci.: Phys. - 2012. - Vol. 76, Is. 10. - P. 1149-1151, DOI 10.3103/S1062873812100073 . - ISSN 1062-8738

Кл.слова (ненормированные):
Atomic ordering -- Atomic ratio -- Bi-layer -- In-situ transmission -- Nano films -- Solid-state synthesis -- Space Groups -- Atoms -- Gold -- In situ processing -- Transmission electron microscopy -- Copper

Аннотация: In situ transmission electron microscopy investigations of the processes of solid-state synthesis and atomic ordering in bilayer Cu/Au nanofilms (atomic ratio, Cu : Au = 3 : 1) are conducted. It is found that solid-state synthesis starts at 170В°C. A Cu 3Au atomic-disordered structure (Fm3m space group; lattice con- stant, a = 3.76 В± 0.01 A) forms at 280В°C. Annealing the film for 1 hour at 380В°C produced a Cu 3AuI (L1 2 type) atomic-ordered superstructure, a Pm-3m space group, and lattice constant, a = 3.76 В± 0.01 a in the bulk of the film.

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Держатели документа:
L.V. Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Altunin, R. R.; Алтунин, Роман Русланович; Zharkov, S. M.; Жарков, Сергей Михайлович; Моисеенко, Евгений Тимофеевич

    Feshbach projection formalism for transmission through a time-periodic potential
/ A. F. Sadreev // Phys. Rev. E. - 2012. - Vol. 86, Is. 5. - Ст. 56211, DOI 10.1103/PhysRevE.86.056211. - Cited References: 33 . - ISSN 1539-3755
РУБ Physics, Fluids & Plasmas + Physics, Mathematical

Аннотация: The Feshbach projection formalism is applied to consider quantum transmission through a tight-binding wire subject to a time-periodic potential. The wire is coupled with two leads via the coupling constant v(C). The periodicity of the potential implies an additional temporal dimension that reduces the problem to stationary transmission through an effectively two-dimensional lattice system. The non-Hermitian effective Hamiltonian is formulated. Thist allows us to trace the redistribution of resonance positions and resonance widths with the growth of v(C) from the weak-coupling to the strong-coupling regime.

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Доп.точки доступа:
Садреев, Алмаз Фаттахович

    All-optical diode based on dipole modes of Kerr microcavity in asymmetric L-shaped photonic crystal waveguide
/ E. N. Bulgakov, A. F. Sadreev // Opt. Lett. - 2014. - Vol. 39, Is. 7. - P. 1787-1790, DOI 10.1364/OL.39.001787. - Cited References: 14. - This work was partially supported by RFBR grant 13-02-00497 . - ISSN 0146-9592. - ISSN 1539-4794
РУБ Optics
Рубрики:
TRANSMISSION

Аннотация: A design of all-optical diode in L-shaped photonic crystal waveguide is proposed that uses the multistability of single nonlinear Kerr microcavity with two dipole modes. Asymmetry of the waveguide is achieved through different couplings of the dipole modes with the left and right legs of the waveguide. Using coupled mode theory we demonstrate an extremely high transmission contrast. The direction of optical diode transmission can be controlled by power or frequency of injected light. The theory agrees with the numerical solution of the Maxwell equations. (C) 2014 Optical Society of America

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Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; RFBR [13-02-00497]

    Implementation of cross couplings in microwave bandpass filters
/ B. A. Belyaev [et al.] // Microw. Opt. Technol. Lett. - 2014. - Vol. 56, Is. 9. - P. 2021-2025, DOI 10.1002/mop.28507. - Cited References: 15. - This work was supported by the Siberian Branch of the Russian Academy of Sciences, Integration Project No. 109. . - ISSN 0895-2477. - ISSN 1098-2760
   Перевод заглавия: Реализация поперечных связей в микроволновых полосно-пропускающих фильтрах
РУБ Engineering, Electrical & Electronic + Optics

Аннотация: New quasi-lumped resonator bandpass filters with cross couplings are presented. Coaxial and suspended stripline structures are considered. These filters are notable for their extremely wide and deep upper stopbands at small dimensions. They also have transmission zeros near the passband that significantly improve frequency selectivity. Photographs and measured frequency responses for the four fabricated filters are presented. (C) 2014 Wiley Periodicals, Inc.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia
OJSC Sci Prod Enterprise Radiosviaz, Krasnoyarsk, Russia

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Serzhantov, A. M.; Сержантов, Алексей Михайлович; Bal'va, Y. F.; Бальва, Ярослав Федорович; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Leksikov, Al. A.; Лексиков, Александр Александрович; Galeev, R. G.; Siberian Branch of the Russian Academy of Sciences [109]

    S–поляризованный спектр одномерного фотонного кристалла с анизотропным дефектным слоем нанокомпозита
[Текст]
. - Электронный журнал / С. Я. Ветров, П. С. Панкин, И. В. Тимофеев // Ученые зап. физ. фак-та МГУ. - 2014. - № 4. - С. 144304. - Библиогр.: 3 назв.
   Перевод заглавия: S–polarized spectrum of one-dimensional photonic crystal with anisotropic nanocomposite defect layer
Аннотация: Исследованы спектральные свойства одномерного фотонного кристалла с дефектом структуры, в качестве которого рассмотрен слой анизотропного нанокомпозита, внедренного между двумя многослойными диэлектрическими зеркалами. Выявлен ряд важных особенностей в спектре пропускания фотонного кристалла.
Spectral properties are investigated of one-dimensional photonic crystal with structure defect which is considered as an anisotropic nanocomposite layer embedded between two multilayer dielectric mirrors. A number of important features in the transmission spectrum of the photonic crystal are found.

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Панкин, Павел Сергеевич; Тимофеев, Иван Владимирович; Timofeev, I. V.; Vetrov, S. Ya.

    Template synthesis of CMK-3 nanostructured carbon material and study of its properties
/ I. V. Ponomarenko [et al.] // Glass Phys. Chem. - 2014. - Vol. 40, Is. 1. - P. 79-87, DOI 10.1134/S1087659614010180 . - ISSN 1087-6596
Аннотация: Mesostructured carbon has been obtained by template synthesis. SBA-15 mesostructured silicate has been used as a template. The effect of the properties of a template on the ordering of a replica has been studied. It has been shown with the use of X-ray diffraction, gas adsorption, and electron microscopy that there are evident correlations of the conditions of synthesis of a template with the ordering of a carbon replica, which can be guided by the synthesis of materials. The ordering of a replica significantly depends on the mesopore volume of the initial template and thickness of the pore wall. One should use templates with the highest possible mesopore volume and minimal wall thickness to obtain highly ordered replicas. These templates can be prepared during the treatment of synthesized materials at temperatures close to 100 C. It has been determined that, when there is SBA-15, the presence of micropores is a necessary condition for the preparation of carbon replicas that retain the structure of the template. © 2014 Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Chemistry and Chemical Engineering, Russian Academy of Sciences, Siberian Branch, Akademgorodok 50/24, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660049, Russian Federation

Доп.точки доступа:
Ponomarenko, I. V.; Parfenov, V. A.; Zaitseva, Y. N.; Zharkov, S. M.; Жарков, Сергей Михайлович; Kirik, S. D.

    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

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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

    Bulk acoustic waves propagation in Li2B4O7 piezoelectric crystals under the static uniaxial mechanical pressure
/ K. S. Aleksandrov [et al.] // Proceedings of the Annual IEEE International Frequency Control Symposium / Annual frequency control symposium (54 ; 2000 ; Jun. ; 7-9 ; Kansas, MO). - 2000. - P. 214-217. - Cited References: 8 . - ISBN 01616404
Аннотация: The influence of uniaxial mechanical stresses on bulk acoustic waves velocity in piezoelectric crystals Li2B4O7 has been investigated. Electromechanical constants have determined.

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Turchin, P. P.; Sorokin, B. P.; Karpovich, A. A.; Nefedov, V. A.; Annual frequency control symposium(54 ; 2000 ; Jun. ; 7-9 ; Kansas, MO)

    Non-linear electromechanical properties and propagation of acoustic waves under the action of external static fields in the piezoelectric La3Ga5SiO14
/ K. S. Aleksandrov [et al.] // Russ. Ultrason. - 1997. - Vol. 27, Is. 3. - P. 193-196 . - ISSN 0048-8828
Аннотация: A full set of parameters has been obtained for the linear and non-linear electrostriction properties of an La3Ga5SiO14 single crystal. The data have been used for an analysis of the anisotropy of the anharmonic effects and special features of the influence of a constant electric field on the propagation of acoustic waves in this crystal.

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Держатели документа:
Krasnoyarsk State Univ, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Turchin, P. P.; Sorokin, B. P.; Burkov, S. I.; Красноярский государственный университет