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1.


   
    Co-In2O3 nanocomposite films: Synthesis and structural and magnetic properties / L. E. Bykova [et al.] // Phys. Solid State. - 2018. - Vol. 60, Is. 10. - P. 2072-2077, DOI 10.1134/S1063783418100049. - Cited References: 31. - This study was supported by the Russian Foundation for Basic Research, project no. 16-03-00069 and, in part, by the Grant Council of the President of the Russian Federation, project no. SP-1373.2016.3 and the Russian Foundation for Basic Research and the Government of the Krasnoyarsk Territory, project no. 18-42-243009r_mol_a. . - ISSN 1063-7834. - ISSN 1090-6460
РУБ Physics, Condensed Matter
Рубрики:
SOLID-STATE SYNTHESIS
   FE-IN2O3 THIN-FILMS

   THERMITE SYNTHESIS

Аннотация: The structural and magnetic properties of granular Co–In2O3 nanocomposite films formed by vacuum annealing of In/Co3O4 film bilayers at a temperature of 550°C have been investigated. The synthesized Co–In2O3 films contain ferromagnetic cobalt nanoclusters with an average size of 60 nm and a magnetization of ~340 emu/cm3 surrounded by the In2O3 layer and exhibit the thermally activated conductivity.

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Публикация на русском языке Нанокомпозитные пленки Co-In2O3: синтез, структурные и магнитные свойства [Текст] / Л. Е. Быкова [и др.] // Физ. тверд. тела. - 2018. - Т. 60 Вып. 10. - С. 2028–2032

Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 630090, Russia.
Siberian Univ Sci & Technol, Krasnoyarsk 630014, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 630090, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Bykova, L. E.; Быкова, Людмила Евгеньевна; Zhigalov, V. S.; Жигалов, Виктор Степанович; Myagkov, V. G.; Мягков, Виктор Григорьевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Matsynin, A. A.; Мацынин, Алексей Александрович; Bondarenko, G. N.; Patrin, G. S.; Патрин, Геннадий Семёнович; Russian Foundation for Basic Research [16-03-00069, 18-42-243009r_mol_a]; Grant Council of the President of the Russian Federation [SP-1373.2016.3]; Government of the Krasnoyarsk Territory [18-42-243009r_mol_a]
}
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2.


   
    CoPt-Al2O3 nanocomposite films: synthesis, structure, and magnetic properties / V. S. Zhigalov, L. E. Bykova, V. G. Myagkov [et al.] // J. Surf. Ingestig. - 2020. - Vol. 14, Is. 1. - P. 47-53, DOI 10.1134/S102745102001022X. - Cited References: 29. - This study was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research projects no. 18-42-243009 r_mol_a and no. 19-43-240003 r_a, and the Foundation for Assistance to Small Innovative Enterprises in Science and Technology, contract no. 11843GU/2017, code 0033636, U.M.N.I.K. competition. . - ISSN 1027-4510. - ISSN 1819-7094
РУБ Physics, Condensed Matter
Рубрики:
SOLID-STATE SYNTHESIS
   GRANULAR THIN-FILMS

   THERMITE SYNTHESIS

   PHASE

Кл.слова (ненормированные):
thin films -- ferromagnetic nanocomposites -- CoPt alloy -- magnetic anisotropy
Аннотация: The structure and magnetic properties of CoPt–Al2O3 nanocomposite films synthesized by the annealing of Al/(Co3O4 + Pt) bilayers on a MgO(001) substrate at 650°C in vacuum are investigated. The synthesized composite films contain ferromagnetic CoPt grains with an average size of 25–45 nm enclosed in a nonconducting Al2O3 matrix. The saturation magnetization (Ms ~ 330 G) and coercivity (Hc ≈ 6 kOe) of the films are measured in the film plane and perpendicular to it. The obtained films are characterized by a spatial rotational magnetic anisotropy, which makes it possible to arbitrarily set the easy magnetization axis in the film plane or perpendicular to it using a magnetic field stronger than the coercivity (H ˃ Hc).

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Публикация на русском языке Нанокомпозитные пленки CoPt–Al2O3: синтез, структурные и магнитные свойства [Текст] / В. С. Жигалов, Л. Е. Быкова, В. Г. Мягков [и др.] // Поверхность. - 2020. - № 1. - С. 60-67

Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Zhigalov, V. S.; Жигалов, Виктор Степанович; Bykova, L. E.; Быкова, Людмила Евгеньевна; Myagkov, V. G.; Мягков, Виктор Григорьевич; Pavlova, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Matsynin, A. A.; Мацынин, Алексей Александрович; Patrin, G. S.; Патрин, Геннадий Семёнович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Territory; Krasnoyarsk Regional Fund of Science [18-42-243009 r_mol_a, 19-43-240003 r_a]; Foundation for Assistance to Small Innovative Enterprises in Science and Technology [11843GU/2017, 0033636]
}
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3.


   
    Effect of a restricted geometry on thermal and dielectric properties of NH4HSO4 ferroelectric / E. A. Mikhaleva [et al.] // Ferroelectrics. - 2017. - Vol. 513, Is. 1. - P. 44-50, DOI 10.1080/00150193.2017.1350436. - Cited References:17. - The reported study was partially supported by the Russian Foundation for Basic Research (RFBR), research project No. 16-32-00092 mol_a. . - ISSN 0015-0193. - ISSN 1563-5112
   Перевод заглавия: Влияние ограниченной геометрии на тепловые и диэлектрические свойства сегнетоэлектриков NH4HSO4
РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   AMMONIUM

   CAPACITY

   SULFATE

   KH2PO4

Кл.слова (ненормированные):
Ferroelectric -- phase transition -- porous glass -- nanocomposite
Аннотация: Heat capacity, thermal dilatation, sensitivity to pressure and permittivity of NH4HSO4 embedded into glass matrices with a pore size of 320 nm and 46 nm were studied. Large difference in the thermal expansion of both glass and ferroelectric leads to a "clamped" state of NH4HSO4 in nanocomposites and to the phase transition temperatures change. The restricted geometry does not effect on the order of successive transformations in NH4HSO4 but is accompanied by a significant reduction in entropy of phase transitions. The behavior of DTA-signal and permittivity show the expansion of the temperature range of the ferroelectric phase under hydrostatic pressure.

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Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Flerov, I. N.; Флёров, Игорь Николаевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Gorev, M. V.; Горев, Михаил Васильевич; Bogdanov, E. V.; Богданов, Евгений Витальевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Korotkov, L. N.; Rysiakiewicz-Pasek, E.; Russian Foundation for Basic Research (RFBR) [16-32-00092 mol_a]; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(13 ; 2016 ; Jun. ; 19-23 ; Matsue, Japan)
}
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4.


   
    Effect of ball milling and dynamic compaction on magnetic properties of Al2O3/Co(P) composite particles / E. A. Denisova [et al.] // J. Appl. Phys. - 2014. - Vol. 115, Is. 17. - Ст. 17B530, DOI 10.1063/1.4869158. - Cited References: 18. - This work was partially supported by Russian Foundation of Basic Research 13-03-00476-a. . - ISSN 0021-8979. - ISSN 1089-7550
РУБ Physics, Applied
Рубрики:
MECHANOCHEMICAL SYNTHESIS
   MECHANICAL-PROPERTIES

   NANOCOMPOSITE POWDER

   ALLOYS

   NANOCRYSTALLINE

   MICROSTRUCTURE

   FERROMAGNETS

Аннотация: The evolution of the magnetic properties of composite Al2O3/Co(P) particles during ball milling and dynamic compaction is investigated. To prepare starting composite particles, the Al2O3 granules were coated with a Co95P5 shell by electroless plating. The magnetic and structural properties of the composite particles are characterized by scanning electron microscopy, X-ray diffraction, and the use of the Physical Property Measurement System. The use of composite core-shell particles as starting powder for mechanoactivation allows to decrease treatment duration to 1 h and to produce a more homogeneous bulk sample than in the case of the mixture of Co and Al2O3 powders. The magnetic properties of the milled composite particles are correlated with changes in the microstructure. Reduction in grain size of Co during milling leads to an increase of the volume fraction of superparamagnetic particles and to a decrease of the saturation magnetization. The local magnetic anisotropy field depends on the amount of hcp-Co phase in sample. The anisotropy field value decreases from 8.4 kOe to 3.8 kOe with an increase in milling duration up to 75 min. The regimes of dynamic compaction were selected so that the magnetic characteristics-saturation magnetization and coercive field-remained unchanged. (C) 2014 AIP Publishing LLC.

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Держатели документа:
Kirensky Inst Phys SB RAS, Krasnoyarsk, Russia
Krasnoyarsk Inst Railways Transport, Krasnoyarsk, Russia
Inst Sicherheitsforsch & Reaktortech, D-52425 Julich, Germany
Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk, Russia

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Кузовникова, Людмила Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Bukaemskiy, A. A.; Eremin, E. V.; Еремин, Евгений Владимирович; Nemtsev, I. V.; Немцев, Иван Васильевич; Russian Foundation of Basic Research [13-03-00476-a]
}
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5.


   
    Effect of calcination temperature on activity of Fe2O3-Al2O3 nanocomposite catalysts in CO oxidation / A. M. Kremneva, A. V. Fedorov, O. A. Bulavchenko [et al.] // Catal. Lett. - 2020. - Vol. 150. - P. 3377-3385, DOI 10.1007/s10562-020-03250-8. - Cited References: 31. - This work was supported by the Russian Science Foundation (Grant No. 17-73-20157). The experiments were performed using facilities of the shared research center "National center of investigation of catalysts" at Boreskov Institute of Catalysis. The authors thank A.Yu. Gladky for the TPR measurements and Z.S. Vinokurov for the XRD measurements. . - ISSN 1011-372X. - ISSN 1572-879X
РУБ Chemistry, Physical
Рубрики:
MOSSBAUER
   SPECTROSCOPY

   CHEMISTRY

   IRON

   XPS

   ADSORPTION

   OXYGEN

   FE

Кл.слова (ненормированные):
Environmental catalysis -- Nanostructure -- Gasification -- Oxidation -- Mossbauer spectroscopy
Аннотация: Nanocomposite Fe–Al oxide catalysts were prepared by the melting of iron and aluminum nitrates with the subsequent calcination in air at different temperatures. It was found that the catalysts calcined at 450 °C are more active in the oxidation of CO than the catalysts calcined at 700 °C. X-ray diffraction and X-ray photoelectron spectroscopy showed that all the catalysts consist of hematite, α-Fe2O3 nanoparticles, and Al2O3 in an amorphous state. Iron oxide is the active component, which provides the oxidation of CO, while alumina is a texture promoter. The increase in the calcination temperature leads to a minor increase in the average size of hematite nanoparticles and an insignificant decrease in the specific surface area. Kinetic measurements showed that the oxidation of CO over the Fe–Al catalysts calcined at 450 and 700 °C proceeds with the activation energy of 61–69 and 91 kJ/mol, respectively. This means that the low-temperature and high-temperature catalysts contain different active species. Temperature-programmed reduction with CO indicated that the decrease in the calcination temperature improves the reducibility of the Fe-Al nanocomposites. According to 57Fe Mössbauer spectroscopy, the low-temperature catalysts contain hydrated iron oxides (acagenite and ferrihydrite) and a significant amount of highly defective hematite, which is absent in the high-temperature catalyst. These species can provide the enhanced activity of the low-temperature catalysts in the oxidation of CO.

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Держатели документа:
Boreskov Inst Catalysis, Novosibirsk 630090, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Kremneva, A. M.; Fedorov, A. V.; Bulavchenko, O. A.; Knyazev, Yu. V.; Князев, Юрий Владимирович; Saraev, A. A.; Yakovlev, V. A.; Kaichev, V. V.; Russian Science FoundationRussian Science Foundation (RSF) [17-73-20157]; National center of investigation of catalysts" at Boreskov Institute of Catalysis
}
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6.


   
    Effect of intensive plastic deformation on structure and magnetic properties of Al2O3/Co(P) nanocomposite particles / Е. А. Денисова [et al.] // V International conference "Fundamental bases of mechanochemical technologies". FBMT- 2018 : book of abstracts : [25-28 June 2018, Novosibirsk, Russia]. - 2018. - P. 141 . - ISBN 978-5-4437-0794-5
   Перевод заглавия: Модификация структуры и магнитных свойств нанокомпозитных частиц Al2O3/Co(P) под воздействием интенсивной пластической деформации

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

Доп.точки доступа:
Kuzovnikova, L. A.; Кузовникова, Людмила Александровна; Denisova, E. A.; Денисова, Елена Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Nemtsev, I. V.; Немцев, Иван Васильевич; Shepeta, N. A.; Fundamental Bases of Mechanochemical Technologies, International Conference(5 ; 2018 ; June ; Novosibirsk); "Фундаментальные основы механохимических технологий", международная конференция(5 ; 2018 ; июнь ; Новосибирск); Институт химии твердого тела и механохимии Сибирского отделения РАН; Новосибирский государственный университет
}
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7.


    Bikbaev, R. G.
    Epsilon-Near-Zero Absorber by Tamm Plasmon Polariton / R. G. Bikbaev, S. Y. Vetrov, I. V. Timofeev // Photonics. - 2019. - Vol. 6, Is. 1. - Ст. 28, DOI 10.3390/photonics6010028. - Cited References: 45. - This research was funded by RFBR according to the research project No. 18-32-00053. I.V.T. and S.Y.V. acknowledge financial support from RFBR and MOST according to the research project No. 19-52-52006. . - ISSN 2304-6732
РУБ Optics
Рубрики:
PERFECT ABSORPTION
   PHOTONIC CRYSTAL

   PROPAGATION

   LIGHT

Кл.слова (ненормированные):
photonic crystal -- nanocomposite -- epsilon near-zero material -- Tamm plasmon polariton
Аннотация: Two schemes of excitation of a Tamm plasmon polariton localized at the interface between a photonic crystal and a nanocomposite with near-zero effective permittivity have been investigated in the framework of the temporal coupled-mode theory. The parameters of the structure have been determined, which correspond to the critical coupling of the incident field with a Tamm plasmon polariton and, consequently, ensure the total absorption of the incident radiation by the structure. It has been established that the spectral width of the absorption line depends on the scheme of Tamm plasmon polariton excitation and the parameters of a nanocomposite film. The features of field localization at the Tamm plasmon polariton frequency for different excitation schemes have been examined. It has been demonstrated that such media can be used as narrowband absorbers based on Tamm plasmon polaritons localized at the interface between a photonic crystal and a nanocomposite with near-zero effective permittivity.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Бикбаев, Рашид Гельмединович; RFBR; MOST [19-52-52006]
}
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8.


   
    Exchange Interaction in the Co-SiO2 Nanocomposite Films [Text] / R. S. Iskhakov, E. A. Denisova [et al.] // IV Euro-Asian Symposium "Trends in MAGnetism" Nanospintronics (EASTMAG-2010). School for young scientist "Spintronics" : June 28 - Lule 2, 2010"Book of abstracts. - Ekaterinburg, 2010. - P. 191

РИНЦ

Доп.точки доступа:
Iskhakov, R.S.; Denisova, E.A.; Komogortsev, S.V.; Stolyar, S.V.; Chekanova, L.A.; Maltsev, V.K.; Kalinin, Yu.E.; Sitnikov, A.V.; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); Уральское отделение РАН
}
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9.


   
    Exchange interaction in the Co-SiO2 nanocomposite films / E. A. Denisova [et al.] // TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - P265-268, DOI 10.4028/www.scientific.net/SSP.168-169.265 . - ISSN 1012-0394
Кл.слова (ненормированные):
exchange coupling parameter -- ferromagnetic resonance -- granular composite films -- cobalt -- exchange coupling -- exchange interactions -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- magnetic resonance measurement -- nanocomposite films -- nanocomposites -- nuclear magnetic resonance -- resonance -- silicon compounds -- spin waves -- cobalt -- exchange coupling -- exchange interactions -- ferromagnetic materials -- ferromagnetic resonance -- ferromagnetism -- magnetic resonance measurement -- magnetism -- nanocomposite films -- nuclear magnetic resonance -- spin fluctuations -- spin waves -- co content -- coupling parameters -- dispersion relations -- granular composite films -- magnetic measurements -- nanogranulars -- nmr studies -- structural state -- granular composites -- nano-granular -- standing spin waves -- composite films -- composite films
Аннотация: The properties of Co-SiO2 nanogranular composite films, containing a Co volume fraction ranging from 0.3 to 0.8, have been characterized by means of magnetic measurements, NMR study, and ferromagnetic resonance. Thermal decrease of CoX(SiO2)100-X magnetization follows the T3/2 law and allows to estimate the exchange interaction constant A. With growing nominal Co content the transitions from granular to continuous structural state at 36% Co are registered by FMR measurements. The spectrum of standing spin-wave has been detected in the perpendicular experiment configuration for films with the Co content above 52 vol. %. It is found that the type of the dispersion relation of spin waves in Co-SiO2 composite films is affected by the exchange coupling fluctuations.

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Держатели документа:
Kirensky Institute of Physics, SB, RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian University of Technology, Krasnoyarsk, 660049, Russian Federation
Voronezh State Technical University, Voronezh, Russian Federation

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Stolyar, S. V.; Столяр, Сергей Викторович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Maltsev, V. K.; Мальцев, Вадим Константинович; Kalinin, Y. E.; Sitnikov, A. V.
}
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10.


   
    Ferromagnetic Resonance and Magnetic Microstructure in Nanocomposite Films of Co-x(SiO2)(1-x) and (CoFeB)(x)(SiO2)(1-x) / R. S. Iskhakov [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 11. - P. 2263-2266, DOI 10.1134/S1063783410110089. - Cited References: 10. - This study was supported by the Ministry of Education and Science of the Russian Federation within the framework of the program "Development of the Scientific Potential of the Higher School" (project nos. RNP.2.1.1/2584 and RNP.2.1.1/3498) and the Russian Foundation for Basic Research (project no. 09-02-98002r_sibir_a). . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
RANDOM ANISOTROPY
Аннотация: This paper reports on the results of the investigation of the relation between the magnetic microstructure and ferromagnetic resonance (FMR) in ferromagnetic metal-insulator composites by using granular alloys (Co41Fe39B20) (x) (SiO2)(1 - x) and Co (x) (SiO2)(1 - x) as an example. A comparative analysis of the properties of FMR spectra and parameters of random magnetic anisotropy leads to correlations between these quantities. It has been found that the main mechanism that determines the FMR line width in the films under investigation is the exchange narrowing mechanism.

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Держатели документа:
[Iskhakov, R. S.
Denisova, E. A.
Komogortsev, S. V.
Chekanova, L. A.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Iskhakov, R. S.
Komogortsev, S. V.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Chekanova, L. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Kalinin, Yu. E.
Sitnikov, A. V.] Voronezh State Tech Univ, Voronezh 394017, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian State Technological University, pr. Mira 82, Krasnoyarsk 660049, Russian Federation
Siberian Federal University, pr. Svobodny 79, Krasnoyarsk 660041, Russian Federation
Voronezh State Technical University, Moskovskii pr. 14, Voronezh 394017, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Denisova, E. A.; Денисова, Елена Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Kalinin, Y. E.; Sitnikov, A. V.
}
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