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1.


    Slabko, V. V.
    Self-organised aggregation of a pair of particles with different resonant frequencies and electric dipole moments of transitions, controlled by an external quasi-resonant field / V. V. Slabko, A. S. Tsipotan, A. S. Aleksandrovsky // Quantum Electron. . - 2013. - Vol. 43, no. 5. - P. 458-462DOI 10.1070/QE2013v043n05ABEH015021
Аннотация: The influence of the oscillation phases of the dipole moments induced in metal nanoparticles and quantum dots by an external laser field on their interaction energy is considered. It is shown that a difference in resonant frequencies leads to the formation of additional minima and maxima, which are absent in the spectral dependence of the interaction energy of identical particles at similar orientations of the pair of particles with respect to the plane of polarisation of radiation. These features are due to the fact that the oscillation phase difference of the induced dipole moments of particles reaches values close to π.

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Публикация на русском языке Слабко, Виталий Васильевич. Управляемая внешним квазирезонансным полем самоорганизованная агрегация пары частиц с разными резонансными частотами и электродипольными моментами переходов / В. В. Слабко // Квантовая электроника. - 2013. - Т. 43, № 5. - С. 458-462


Доп.точки доступа:
Tsipotan, A. S. ; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Слабко, Виталий Васильевич
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2.


    Слабко, Виталий Васильевич.
    Управляемая внешним квазирезонансным полем самоорганизованная агрегация пары частиц с разными резонансными частотами и электродипольными моментами переходов / В. В. Слабко, А. С. Ципотан, А. С. Александровский // Квант. электроника. - 2013. - Т. 43, № 5. - С. 458-462
Кл.слова (ненормированные):
взаимодействие лазерного излучения с веществом -- дипольное взаимодействие -- наночастицы -- наноструктуры
Аннотация: Рассмотрено влияние фаз колебаний наведенных внешним лазерным полем дипольных моментов наночастиц металла и квантовых точек на энергию их взаимодействия. Показано, что различие в резонансных частотах приводит к возникновению дополнительных минимумов и максимумов, отсутствующих в спектральной зависимости энергии взаимодействия идентичных частиц при аналогичных ориентациях пары частиц относительно плоскости поляризации излучения. Последнее связано с достижением разностью фаз колебаний наведенных дипольных моментов частиц величин, близких к π.

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Переводная версия Self-organised aggregation of a pair of particles with different resonant frequencies and electric dipole moments of transitions, controlled by an external quasi-resonant field. - [Б. м. : б. и.]

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

Доп.точки доступа:
Ципотан, Алексей Сергеевич; Александровский, Александр Сергеевич; Aleksandrovsky, A. S.; Slabko V.V.
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3.


   
    Microstructure and magnetic properties of C/Co-P and Al2O3/Co-P composite particles prepared by electroless plating / E. A. Denisova [et al.] // J. Appl. Phys. - 2013. - Vol. 113, Is. 17. - Ст. 17A340. - P. DOI 10.1063/1.4800037
   Перевод заглавия: Микроструктура и магнитные свойства композиционных частиц C/Co-P и Al2O3/Co-P, изготовленных методом химического осаждения
Аннотация: The electroless plating is used to synthesize two types of composite powder, such as the activated carbon with pores filled by Co100-XPX particles and the Al2O3 microgranular coated by the shell which consists of Co100-XPX particles with 4 X 18. The magnetic and structural properties of the composite particles are characterized by scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometer. It is found that the average Co(P) particle size in composite powders decreases from 300 nm to 120 nm with an increase in P- content from 4 to 18 at. %. It causes a reduction in coercivity from 300 to 80 Oe for Al2O3/Co(P) powders and from 680 to 150 Oe for C/Co(P) powders. The effects of two methods of immobilization of Co(P) particles on magnetic properties are studied.

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Держатели документа:
Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
Inst Chem & Chem Technol SB RAS, Krasnoyarsk 660036, Russia;

Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Chekanova, L. A.; Чеканова, Лидия Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Bondarenko, G. N.; Бондаренко, Галина Николаевна
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4.


   
    Spherical magnetic nanoparticles fabricated by laser target evaporation / A. P. Safronov [et al.] // AIP Adv. - 2013. - Vol. 3, Is. 5. - Ст. 052135. - P. , DOI 10.1063/1.4808368. - Cited References: 47. - This work was supported by the RFBR 10-02-96015 and 12-02-31385 projects, UrFU 215, Spanish MEC MAT2011-27573-C04 grants, Universidad del Pais Vasco UPV/EHU under UFI11/53 action and Physics Department of the University of Maryland visiting grant. Selected measurements were performed at SGIker service of UPV-EHU. We thank O.M. Samatov, Dr. A.M. Murzakayev, Dr. I. Orue, and A.A. Svalova for special support. . - ISSN 2158-3226
РУБ Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
IRON-OXIDE NANOPOWDERS
   CO2-LASER EVAPORATION

   FE3O4 NANOPARTICLES

   FINITE-SIZE

   TEMPERATURE

   FERROMAGNETS

   FERROFLUIDS

   DEPENDENCE

   EXPLOSION

   PARTICLES

Аннотация: Magnetic nanoparticles of iron oxide (MNPs) were prepared by the laser target evaporation technique (LTE). The main focus was on the fabrication of de-aggregated spherical maghemite MNPs with a narrow size distribution and enhanced effective magnetization. X-ray diffraction, transmission electron microscopy, magnetization and microwave absorption measurements were comparatively analyzed. The shape of the MNPs (mean diameter of 9 nm) was very close to being spherical. The lattice constant of the crystalline phase was substantially smaller than that of stoichiometric magnetite but larger than the lattice constant of maghemite. High value of M-s up to 300 K was established. The 300 K ferromagnetic resonance signal is a single line located at a field expected from spherical magnetic particles with negligible magnetic anisotropy. The maximum obtained concentration of water based ferrofluid was as high as 10g/l of magnetic material. In order to understand the temperature and field dependence of MNPs magnetization, we invoke the core-shell model. The nanoparticles is said to have a ferrimagnetic core (roughly 70 percent of the caliper size) while the shell consists of surface layers in which the spins are frozen having no long range magnetic order. The core-shell interactions were estimated in frame of random anisotropy model. The obtained assembly of de-aggregated nanoparticles is an example of magnetic nanofluid stable under ambient conditions even without an electrostatic stabilizer. (C) 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

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Держатели документа:
RAS, Inst Electrophys, Ekaterinburg 620016, Russia
Urals Fed Univ, Ekaterinburg 620000, Russia
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Basque Country UPV EHU, Dept Elect & Elect, Bilbao 48080, Spain
Univ Basque Country UPV EHU, SGIker, Bilbao 48080, Spain
Univ Maryland, Dept Phys, FMR Grp, College Pk, MD 20742 USA

Доп.точки доступа:
Safronov, A. P.; Beketov, I. V.; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Kurlyandskaya, G. V.; Medvedev, A. I.; Leiman, D. V.; Larranaga, A.; Bhagat, S. M.
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5.


   
    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
Рубрики:
BIMETALLIC NANOPARTICLES
   METALLIC PALLADIUM

   COPPER

   ELECTRODE

   BLACK

   Bimetallic particles

   Bimetallic powders

   Gold-palladium

   Hydrochloric acid solution

   Nernst equation

   Redox potentials

   Gold

   Hydrochloric acid

   Redox reactions

   Secondary batteries

   Transmission electron microscopy

   X ray diffraction analysis

Кл.слова (ненормированные):
bimetallic powders -- gold-palladium -- redox potential
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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Публикация на русском языке Окислительно-востановительные потенциалы золото-палладиевых порошков в водных растворах H2PdCl4 [Текст] / О. В. Белоусов [и др.] // Журн. физ. химии : Наука, 2012. - Т. 86 № 3. - С. 557-562

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.
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6.


   
    Structural diagnostics of functional nanomaterials with the use of X-ray synchrotron radiation / N. N. Trofimova [et al.] // Nanotechnologies in Russia. - 2013. - Vol. 8, Is. 5-6. - P. 396-401, DOI 10.1134/S1995078013030191 . - ISSN 1995-0780
Кл.слова (ненормированные):
Experimental facilities -- Functional Nano materials -- Kurchatov synchrotron radiation -- Magnetic nano-particles -- Research capabilities -- Structural diagnostics -- Structural elements -- X-ray synchrotron radiation -- Nanostructured materials -- Synchrotron radiation
Аннотация: An experimental facility for the complex X-ray diagnostics of functional nanomaterials (Structural Materials Science beamline) installed at the Kurchatov Synchrotron Radiation Center is presented. The key structural elements of the beamline are described. The research capabilities of the facility are demonstrated by the example of transparent magnets and glasses with magnetic nanoparticles, which are promising for the design of magneto-optical data storage and spintronics devices.

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Публикация на русском языке Структурная диагностика функциональных наноматериалов с использованием рентгеновского синхротронного излучения // Российские нанотехнологии. - Москва : Парк-медиа, 2013. - Т. 8, № 5-6. - С. 108-112

Держатели документа:
National Research Center Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russian Federation
Faculty of Chemistry, Moscow State University, Moscow, 119991, Russian Federation
Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow oblast, 141700, Russian Federation
Kirenskii Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russian Federation

Доп.точки доступа:
Trofimova, N. N.; Veligzhanin, A. A.; Murzin, V.Y; Chernyshov, A. A.; Khramov, E. V.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Edel'man, I. S.; Эдельман, Ирина Самсоновна; Slovokhotov, Y. L.; Zubavichus, Y. V.
}
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7.


   
    Correlation of magnetic anisotropy energy and order parameter in nanostructured CoPt particles / S. V. Komogortsev [и др.] // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013 = EASTMag-2013. - P70 . - ISBN 978-5-7444-3124-2


Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Zimin, A. A.; Зимин, А. А.; Korenev, S. V.; Коренев С.В.; Filatov, E. Yu.; Филатов Е.Ю.; Shubin, Yu. V.; Шубин Ю.В.; Chizhik, N. A.; Чижик Н.А.; Yurkin, G.Yu.; Юркин, Глеб Юрьевич; Eremin, E. V.; Еремин, Евгений Владимирович; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)
}
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8.


   
    Magnetic particles in mesoporous silica MCM-41 / E. A. Denisova, S. V. Komogortsev // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013. - P176 . - ISBN 978-5-7444-3124-2


Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Li, O. A.; Ли О.А.; Chekanova, L. A.; Чеканова, Лидия Александровна; Patrusheva, T. N.; Патрушева, Тамара Николаевна; Eremin, E. V.; Еремин, Евгений Владимирович; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)
}
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9.


   
    Correlation of magnetic anisotropy energy and order parameter in nanostuctured CoPt particles / S. V. Komogortsev [и др.] // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013. - P246 . - ISBN 978-5-7444-3124-2


Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Zimin, A. A.; Зимин, А. А.; Filatov, E. Yu. ; Филатов Е.Ю.; Korenev, S. V. ; Коренев С.В.; Shubin, Yu. V. ; Шубин Ю.В.; Chizhik, N. A. ; Чижик Н.А.; Yurkin, G.Yu.; Юркин, Глеб Юрьевич; Eremin, E. V.; Еремин, Евгений Владимирович; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)
}
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10.


   
    Magnetic nanoparticles formed in glasses co-doped with iron and larger radius elements / I. S. Edelman [et al.] // J. Appl. Phys. - 2012. - Vol. 112, Is. 8. - Ст. 84331. - P. , DOI 10.1063/1.4759244. - Cited References: 65. - This work was partly supported by the Russian Foundation for Basic Research, Grant Nos. 07-02-92174 RFBR-CNRS and 11-02-00972, and President of Russia Federation Grant No NSh 1044.2012.2. A. Artemenko acknowledges financial support from the Marie Curie International Incoming Fellowship within the 7th European Community Framework Programme (EPREXINA, GA 255662). The synchrotron measurements were supported via the Russian federal Contract No. 16.552.11.7003. The authors thank K. P. Polyakova for the preparation of thin films. . - ISSN 0021-8979
РУБ Physics, Applied
Рубрики:
SUPERPARAMAGNETIC RESONANCE
   FERROMAGNETIC-RESONANCE

   TEMPERATURE-DEPENDENCE

   FERRITE NANOPARTICLES

   OXIDE NANOPARTICLES

   FARADAY-ROTATION

   CERAMICS

   ANISOTROPY

   PARTICLES

   SPECTRA

Аннотация: A new type of nanoparticle-containing glasses based on borate glasses co-doped with low contents of iron and larger radius elements, Dy, Tb, Gd, Ho, Er, Y, and Bi, is studied. Heat treatment of these glasses results in formation of magnetic nanoparticles, radically changing their physical properties. Transmission electron microscopy and synchrotron radiation-based techniques: x-ray diffraction, extended x-ray absorption fine structure, x-ray absorption near-edge structure, and small-angle x-ray scattering, show a broad distribution of nanoparticle sizes with characteristics depending on the treatment regime; a crystalline structure of these nanoparticles is detected in heat treated samples. Magnetic circular dichroism (MCD) studies of samples subjected to heat treatment as well as of maghemite, magnetite, and iron garnet allow to unambiguously assign the nanoparticle structure to maghemite, independently of co-dopant nature and of heat treatment regime used. Different features observed in the MCD spectra are related to different electron transitions in Fe3+ ions gathered in the nanoparticles. The static magnetization in heat treated samples has non-linear dependence on the magnetizing field with hysteresis. Zero-field cooled magnetization curves show that at higher temperatures the nanoparticles occur in superparamagnetic state with blocking temperatures above 100 K. Below ca. 20 K, a considerable contribution to both zero field-cooled and field-cooled magnetizations occurs from diluted paramagnetic ions. Variable-temperature electron magnetic resonance (EMR) studies unambiguously show that in as-prepared glasses paramagnetic ions are in diluted state and confirm the formation of magnetic nanoparticles already at earlier stages of heat treatment. Computer simulations of the EMR spectra corroborate the broad distribution of nanoparticle sizes found by "direct" techniques as well as superparamagnetic nanoparticle behaviour demonstrated in the magnetization studies. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4759244]

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Держатели документа:
[Edelman, I.
Ivanova, O.
Ivantsov, R.
Velikanov, D.
Zabluda, V.] LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
[Zubavichus, Y.
Veligzhanin, A.] NRC Kurchatov Inst, Moscow 123182, Russia
[Zaikovskiy, V.] Siberian Branch RAS, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
[Stepanov, S.] SI Vavilov State Opt Inst, St Petersburg, Russia
[Artemenko, A.] CNRS, ICMCB, UPR 9048, F-33608 Pessac, France
[Curely, J.
Kliava, J.] Univ Bordeaux 1, CNRS, UMR 5798, LOMA, F-33405 Talence, France

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivanova, O. S.; Иванова, Оксана Станиславовна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Zabluda, V. N.; Заблуда, Владимир Николаевич; Zubavichus, Y.; Veligzhanin, A. A.; Zaikovskiy, V. I.; Stepanov, S.; Artemenko, A.; Curely, J.; Kliava, J.
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