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Myagkov, V. G.
Fractal clusters and self-propagating high-temperature synthesis in thin Al/Ge films / V. G. Myagkov, L. E. Bykova // JETP Letters. - 1998. - Vol. 67, Is. 5. - P. 334-338, DOI 10.1134/1.567669. - Cited References: 14 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
DENSE BRANCHING MORPHOLOGY
   SINGLE-CRYSTAL GROWTH
   AL-GE
   PHASE-SEPARATION
Аннотация: Fractal clusters in amorphous thin films are examples of growth models. The main models are the Witten-Sander model and its modifications. It is believed that fractal patterns are formed in the course of the crystallization of an amorphous phase. It is shown that self-propagating high-temperature synthesis can be initiated in an Al/Ge film system and fractal patterns are formed in the reaction products. It is conjectured that the transition of an amorphous phase to a crystalline phase does not play a substantial role in the appearance of such patterns, while the formation of fractal clusters is determined by self-propagating high-temperature synthesis. (C) 1998 American Institute of Physics. [S0021-3640(98)00605-7].

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bykova, L. E.; Быкова, Людмила Евгеньевна; Мягков, Виктор Григорьевич
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Myagkov, V. G.
Multiple self-propagating high-temperature synthesis and solid-phase reactions in thin films / V. G. Myagkov, L. E. Bykova, G. N. Bondarenko // J. Exp. Theor. Phys. - 1999. - Vol. 88, Is. 5. - P. 963-967, DOI 10.1134/1.558878. - Cited References: 28 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
DENSE BRANCHING MORPHOLOGY
   SINGLE-CRYSTAL GROWTH
   PATTERN-FORMATION
   AL-GE
   CHEMICAL-REACTIONS
   CRYSTALLIZATION
   SEPARATION
   HEAT
Аннотация: A variety of self-propagating high-temperature synthesis in thin films has been found and investigated. This modification, called multiple self-propagating high-temperature synthesis, occurs in the solid phase and is a reversible phase transition. Multiple self-propagating high-temperature synthesis is similar in many respects to a metal-insulator phase transition. It is shown that for eutectic systems it is equivalent to a repeated transition through the eutectic temperature of bulk samples. It is inferred that multiple self-propagating high-temperature synthesis in bilayer films is governed by phase separation mechanisms that take place during eutectic solidification and eutectoid decomposition. (C) 1999 American Institute of Physics. [S1063-7761(99)01705-9].

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
ИХХТ СО РАН

Доп.точки доступа:
Bykova, L. E.; Быкова, Людмила Евгеньевна; Bondarenko, G. N.; Бондаренко, Галина Николаевна; Мягков, Виктор Григорьевич
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Chaotic waveguide-based resonators for microlasers / J. A. Mendez-Bermudez [et al.] // Phys. Rev. B. - 2003. - Vol. 67, Is. 16. - Ст. 161104, DOI 10.1103/PhysRevB.67.161104. - Cited References: 33 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
QUANTUM-CLASSICAL CORRESPONDENCE
   MORPHOLOGY-DEPENDENT RESONANCES
   DIRECTIONAL EMISSION
   OPTICAL CAVITIES
   MICRODISK LASERS
   WAVE CHAOS
   DROPLETS
   PRECESSION
   BILLIARDS
   STATES
Аннотация: We propose the construction of highly directional emission microlasers using two-dimensional high-index semiconductor waveguides as open resonators. The prototype waveguide is formed by two collinear leads connected to a cavity of certain shape. The proposed lasing mechanism requires that the shape of the cavity yield mixed chaotic ray dynamics so as to have the approplate (phase space) resonance islands. These islands allow, via Heisenberg's uncertainty principle, the appearance of quasibound states (QBSs) which, in turn, propitiate the lasing mechanism. The energy values of the QBSs are found through the solution of the Helmholtz equation. We use classical ray dynamics to predict the direction and intensity of the lasing produced by such open resonators for typical values of the index of refraction.

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Держатели документа:
Univ Autonoma Puebla, Inst Fis, Puebla 72570, Mexico
Univ Hradec Kralove, Dept Phys, Hradec Kralove, Czech Republic
Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Mendez-Bermudez, J. A.; Luna-Acosta, G. A.; Seba, P.; Pichugin, K. N.; Пичугин, Константин Николаевич
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Composition, morphology, properties of coal fly ash microspheres and their application for conditioning liquid radioactive waste / N. N. Anshits [et al.] // International Journal of Nuclear Energy Science and Technology. - 2006. - Т. 2, № 1-2. - С. 8-24 . - ISSN 1741-6361. - ISSN 1741-637X

ГРНТИ

MeSH-главная:

РИНЦ
Держатели документа:
Federal State Unitary Enterprize ‘Mining Chemical Combine’ (MCC)
G.K. Boreskov’s Institute of Catalysis SB RAS (IC SB RAS)
Institute of Chemistry and Chemical Technology,SB RAS (ICCT SB RAS)
L.B. Kirenskii Institute of Physics SB RAS (IP SB RAS)
Доп.точки доступа:
Anshits, N. N. ; Аншиц, Наталья Николаевна; Salanov, A. N.; Vereshchagina, T. A.; Kruchek, D. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Tretyakov, A. A.; Revenko, Y. A.; Anshits, A. G.; Аншиц, Александр Георгиевич
}
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Magnetic properties and morphology of manganese ferrite nanoparticles in glasses / I. Edelman [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2011. - Vol. 25, Is. 1. - Ст. 012017, DOI 10.1088/1757-899X/25/1/012017
Кл.слова (ненормированные):
Average diameter -- Borate glass -- Co-doped -- Electron magnetic resonance -- Magnetic and magneto-optical properties -- Magnetic behaviour -- Magnetic circular dichroisms -- Magnetic nanoparticles -- Magnetically ordered material -- Manganese ferrite nanoparticles -- Manganese ferrites -- Morphological characteristic -- Paramagnetic ions -- Resonance field -- Size and shape -- Static magnetization -- Temperature dependence -- Temperature dependent -- Variable temperature -- Visible and near infrared -- Alumina -- Dichroism -- Ferrite -- Glass -- Iron oxides -- Magnetic properties -- Magnetic resonance -- Magnetocrystalline anisotropy -- Manganese -- Manganese oxide -- Nanoparticles -- Paramagnetism -- Silicates -- Spectroscopy -- Nanomagnetics
Аннотация: Static magnetization (SM), magnetic circular dichroism (MCD) and electron magnetic resonance (EMR) studies are reported of borate glasses 22.5 K 2O-22.5 Al 2O 3-55 B 2O 3 co-doped with iron and manganese oxides. In as-prepared glasses the paramagnetic ions usually are in diluted state; however, if the ratio of the iron and manganese oxides in the charge is 3/2, magnetic nanoparticles are found already in as-prepared glass. After additional thermal treatment all glasses show magnetic behaviour, MCD and EMR due to the presence of magnetic nanoparticles with characteristics close to those of manganese ferrite. By computer simulating the EMR spectra at variable temperatures, their morphological characteristics are deduced: relatively broad size and shape distribution with average diameter of ca. 3-4 nm. The characteristic temperature-dependent shift of the apparent resonance field is explained by a strong temperature dependence of the magnetocrystalline anisotropy in the nanoparticles. The potassium-alumina-borate glasses containing magnetic nanoparticles represent a novel class of materials: "transparent magnets". Indeed, they remain transparent in a part of visible and near infrared spectral range while showing magnetic and magneto-optical properties characteristic of magnetically ordered materials.

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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; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Artemenko, A.; Curely, J.; Kliava, J.; Zaikovskiy, V. I.; Stepanov, S.; Baltic Conference on Silicate Materials(5 ; 2011 ; May ; 23-25 ; Riga, Latvia)
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    Магнитные свойства и морфология наночастиц феррита марганца в стекле / Оксана С. Иванова [и др.] // Журнал Сибирского федерального университета. Серия: Математика и физика. - 2011. - Т. 4, № 4. - С. 470-478 . - ISSN 1997-1397
   Перевод заглавия: Magnetic Properties and Morphology of the Manganese Ferrite Nanoparticles in Glass

УДК

537.622

Рубрики:

Кл.слова (ненормированные):
magnetic properties -- manganese ferrite nanoparticles -- magnetization temperature depen- dence -- магнитные свойства -- наночастицы феррита марганца -- температурная зависимость намагниченности
Аннотация: Работа посвящена сравнительному исследованию структуры и магнитных свойств стекол, ак- тивированных Fe и Mn, в которых при термообработках формируются наночастицы феррита марганца. Морфология наночастиц исследована с помощью электронной микроскопии высокого разрешения. Полевые и температурные зависимости намагниченности исследованы в интервале температур 1,8-300 K в полях до 5 T. Показано что, магнитные свойства стекла определяются морфологией наночастиц.
The paper is dedicated to the comparative investigation of the magnetic properties and structure of oxide glasses doped with Fe and Mn. Manganese ferrite nanoparticles arise in the glasses as a result of an additional thermal treatment. The particles morphology is investigated with the high resolution electron microscopy. The glasses magnetization is investigated in the temperature interval 1,8-300 K in mag- netic field up to 5 T. The glasses magnetic properties are shown to be governed by the nanoparticles morphology.

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Держатели документа:
Институт катализа им. Борескова СО РАН
Институт физики им.Л.В.Киренского СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Иванова, Оксана Станиславовна; Ivanova, O. S.; Великанов, Дмитрий Анатольевич; Velikanov, D. A.; Диденко, О. Н.; Зайковский, В. И.
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Magnetic properties and morphology of manganese ferrite nanoparticles in glasses [Text] / I. Edelman, O. Ivanova, I. Ivantsov [et al.] // BaltSilica-2011 : Book of abstracts. - 2011. - P50

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РИНЦ,
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Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivanova, O. S.; Иванова, Оксана Станиславовна; Ivantsov, I. D.; Иванцов, Илья Дмитриевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Artemenko, A.; Curely, J.; Kliava, J.; Zaikovskiy, V.; Stepanov, S.; Baltic Conference on Silicate Materials(5 ; 2011 ; Oct. ; 9-13 ; Riga)
}
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Magnetic properties and morphology of ferrite nanoparticle dispersed in glass [Text] / I. Edelman., O. Ivanova, R. Ivantsov [et al.] // Moscow Int. Symp. on Magnet. (MISM-2011) : Book of abstracts. - 2011. - Ст. 23OR-B-9. - P. 281-282

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Доп.точки доступа:
Edelman., I.; Ivanova, O.; Ivantsov, R.; Velikanov, D.; Zubavichus, Y.; Veligzhanin, A.; Curely, J.; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
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Peculiarities of magnetic properties of Ni-Ge layered films / A. V. Chernichenko [et al.] // TRENDS IN MAGNETISM. - 2011. - Vol. 168-169. - P261-264, DOI 10.4028/www.scientific.net/SSP.168-169.261 . - ISSN 1012-0394
Кл.слова (ненормированные):
exchange bias effect -- magnetic properties -- ni and ge mutual diffusion -- ni-ge layer structures -- surface morphology -- antiferromagnetism -- diffusion -- germanium -- magnetic properties -- magnetization -- morphology -- phase interfaces -- solids -- germanium -- magnetic properties -- magnetization -- nickel -- surface morphology -- temperature distribution -- antiferromagnetic phase -- exchange bias effects -- ge films -- layered films -- low temperatures -- magnetization temperature -- mutual diffusion -- ni and ge mutual diffusion -- ni-ge layer structures -- ge layers -- surface morphology -- magnetism
Аннотация: The surface morphology and magnetic properties of layered Ni-Ge films were investigated. The films surface has been shown to consist of the grains of 2 - 4 nm in height with the average radius of about 40-80 nm. Magnetization temperature dependences are different for FC and ZFC processes; in the latter case, the magnetization maximum is observed near the temperature T m?50K. The exchange bias effect is observed at low temperatures. The results are explained by the formation of the antiferromagnetic phase in the interface between Ni and Ge layers due to the Ge and Ni mutual diffusion.

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

Доп.точки доступа:
Chernichenko, A. V.; Черниченко, Ангелина Виталиевна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Marushchenko, D. A.; Марущенко, Дмитрий Анатольевич; Turpanov, I. A.; Турпанов, Игорь Александрович; Patrin, G. S.; Патрин, Геннадий Семёнович; Greben'kova, Yu. E.; Гребенькова, Юлия Эрнестовна
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10.

    Magnetic and magneto-optical properties of Co-P films prepared by chemical deposition / A. V. Chzhan [et al.] // J. Magn. Magn. Mater. - 2011. - Vol. 323, Is. 20. - P. 2493-2496, DOI 10.1016/j.jmmm.2011.05.024. - Cited Reference Count: 22. - Гранты: This study was supported by the Russian Foundation for Basic Research, Project no. 08-02-00397a and the departmental target program Development of Scientific Potential of Higher Education, 2009-2010, Project no. 2.1.1./4399. - Финансирующая организация: Russian Foundation for Basic Research [08-02-00397a]; departmental target program Development of Scientific Potential of Higher Education [2.1.1./4399] . - OCT. - ISSN 0304-8853
Рубрики:
SPECTROSCOPY
   THICKNESS
   COBALT
Кл.слова (ненормированные):
co-p films -- chemically deposition -- the polar kerr and faraday effects -- hysteresis loops -- chemically deposition -- cop films -- hysteresis loops -- the polar kerr and faraday effects -- chemical deposition -- chemically deposition -- co films -- cop films -- film magnetization -- film surface morphology -- incident light -- magnetic and magneto-optical properties -- magnetic layers -- polar kerr effect -- polar-kerr -- polycrystalline -- underlayers -- chemical analysis -- faraday effect -- hysteresis loops -- kerr magnetooptical effect -- light reflection -- magnetic materials -- optical kerr effect -- palladium -- cobalt
Аннотация: Features in the formation of chemically deposited polycrystalline Co-P films with thicknesses of a few nanometers are established by analyzing film surface morphology and variation in the film magnetization. It is shown that in the thickness range below 30 nm the polar Kerr effect value OK changes nonmonotonically and depends on a wavelength of the incident light. For the films thicker than 30 nm, this value depends weakly on both the thickness and the wavelength. These features in the OK behavior are attributed to the Faraday effect, which is revealed at small thicknesses upon light reflection from the lower surface of a magnetic layer. It is found that the Faraday effect in the Co-P films exceeds that in the Co films by a factor of more than two. This effect is assumed to be caused by the presence of a Pd underlayer in the samples under study. (C) 2011 Elsevier BY. All rights reserved.

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

Доп.точки доступа:
Chzhan, A. V.; Patrin, G. S.; Kiparisov, S. Y.; Seredkin, V. A.; Середкин, Виталий Александрович; Burkova, L. V.; Буркова, Людмила Викторовна; Velikanov, D. A.; Великанов, Дмитрий Анатольевич
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