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    Сверхвысоковакуумная установка для получения и исследования наноструктур магнитоэллипсометрическими методами in situ / Н. Н. Косырев, Д. А. Шевцов [и др.] // Решетневские чтения : [Электронный ресурс] : материалы XIV Междунар. науч. конф., посвяще. памяти ген. конструктора ракет.-космич. систем акад. М. Ф. Решетнева : в 2-х ч. / Сиб. гос. аэрокосмич. ун-т.; под общ. ред. Ю.Ю. Логинова. - Красноярск, 2010. - Ч. 2. - С. 582-583. - Библиогр.: 6. - Работа выполнена в рамках программы № 4.1 ОФН РАН «Спинтроника», программы Президиума РАН № 27.10, инте грационного проекта СО РАН и ДВО РАН № 22, федеральной целевой программы «Научные и научно-педагогические кад ры инновационной России» на 2009–2013 гг. (код проекта: НК-744П/ГК П1
   Перевод заглавия: Ultra high vacuum installation for nanostructure production with magnetoellipsometric control
Аннотация: Описана сверхвысоковакуумная камера, позволяющая изготовлять наноструктуры на основе тонких маг нитных пленок. В качестве метода контроля параметров растущей структуры предложена новая методи ка – спектральная магнитоэллипсометрия, позволяющая получать информацию о структурных, оптических и магнитных свойствах непосредственно в процессе изготовления в реальном времени.

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

Доп.точки доступа:
Логинов, Ю. Ю. \ред.\; Косырев, Николай Николаевич; Kosyrev, N.N.; Шевцов, Д. А.; Варнаков, Сергей Николаевич; Varnakov S.N.; Худяков, Алексей Евгеньевич; Ефремов, А.В.; Рыхлицкий, С. В.; Швец, Василий Александрович; "Решетневские чтения", международная научная конференция(14 ; 2010 ; нояб. ; 10-12 ; Красноярск); Сибирский государственный университет науки и технологий им. акад. М. Ф. Решетнева; Информационные спутниковые системы им. академика М. Ф. Решетнева, АО; Красноярский машиностроительный завод, ОАО
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    Effects of inelastic spin-dependent electron transport through a spin nanostructure in a magnetic field / V. V. Val'Kov, S. V. Aksenov // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 2. - P266-275, DOI 10.1134/S1063776111060070. - Cited Reference Count: 30. - Гранты: This study was carried out under the program of the Physical Science Department of the Russian Academy of Sciences, Federal Target Program "Scientific and Scientific-Pedagogical Personnel of Innovative Russia in 2009-2013," Interdisciplinary Integration project no. 53 of the Siberian Branch of the Russian Academy of Sciences, and under partial support from the Russian Foundation for Basic Research (project no. 09-02-00127). The research work of one of the authors (S.V.A) was supported by grant no. MK-1300.2011.2 from the President of the Russian Federation. - Финансирующая организация: Russian Foundation for Basic Research [09-02-00127]; Russian Federation [MK-1300.2011.2] . - AUG. - ISSN 1063-7761
Рубрики:
CONDUCTION
   ANISOTROPY
   JUNCTIONS
Кл.слова (ненормированные):
antiferromagnetic coupling -- colossal magnetoresistance effect -- iv characteristics -- metallic contacts -- potential profiles -- spectral characteristics -- spin dependent transport -- spin dimer -- spin moments -- spin-dependent electron transport -- spin-flip process -- tight-binding approximations -- transmission coefficients -- antiferromagnetism -- colossal magnetoresistance -- current voltage characteristics -- electric resistance -- nanostructures -- transport properties -- magnetic field effects
Аннотация: The transport properties and current-voltage (I-V) characteristics of a system of spin dimers with antiferromagnetic coupling arranged between metallic contacts are investigated in the tight binding approximation using the Landauer-Buttiker formalism. It is shown that the s-d(f) exchange interaction between the spin moments of the electrons being transported and the spins of the nanostructure leads to the formation of a potential profile as well as its variation due to spin-flip processes. As a result, the spin-dependent transport becomes inelastic, and the transmission coefficient and the I-V characteristic are strongly modified. It is found that the application of a magnetic field induces additional transparency peaks in the spectral characteristic of the system and causes the colossal magnetoresistance effect.

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

Доп.точки доступа:
Val'kov, V. V.; Вальков, Валерий Владимирович; Aksenov, S.V.
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Val'kov, V. V.
Effects of inelastic spin-dependent electron transport through a spin nanostructure in a magnetic field / V. V. Val'kov, S. V. Aksenov // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 2. - P. 266-275, DOI 10.1134/S1063776111060070. - Cited References: 30. - This study was carried out under the program of the Physical Science Department of the Russian Academy of Sciences, Federal Target Program "Scientific and Scientific-Pedagogical Personnel of Innovative Russia in 2009-2013," Interdisciplinary Integration project no. 53 of the Siberian Branch of the Russian Academy of Sciences, and under partial support from the Russian Foundation for Basic Research (project no. 09-02-00127). The research work of one of the authors (S.V.A) was supported by grant no. MK-1300.2011.2 from the President of the Russian Federation. . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
CONDUCTION
ANISOTROPY
JUNCTIONS
Кл.слова (ненормированные):
Antiferromagnetic coupling -- Colossal magnetoresistance effect -- IV characteristics -- Metallic contacts -- Potential profiles -- Spectral characteristics -- Spin dependent transport -- Spin dimer -- Spin moments -- Spin-dependent electron transport -- Spin-flip process -- Tight-binding approximations -- Transmission coefficients -- Antiferromagnetism -- Colossal magnetoresistance -- Current voltage characteristics -- Electric resistance -- Nanostructures -- Transport properties -- Magnetic field effects
Аннотация: The transport properties and current-voltage (I-V) characteristics of a system of spin dimers with antiferromagnetic coupling arranged between metallic contacts are investigated in the tight binding approximation using the Landauer-Buttiker formalism. It is shown that the s-d(f) exchange interaction between the spin moments of the electrons being transported and the spins of the nanostructure leads to the formation of a potential profile as well as its variation due to spin-flip processes. As a result, the spin-dependent transport becomes inelastic, and the transmission coefficient and the I-V characteristic are strongly modified. It is found that the application of a magnetic field induces additional transparency peaks in the spectral characteristic of the system and causes the colossal magnetoresistance effect.

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Держатели документа:
[Val'kov, V. V.
Aksenov, S. V.] Russian Acad Sci, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia
[Val'kov, V. V.
Aksenov, S. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Val'kov, V. V.] Reshetnikov Siberian State Aerosp Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Reshetnikov Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Aksenov, S. V.; Аксенов, Сергей Владимирович; Вальков, Валерий Владимирович
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Formation of bulk magnetically soft materials with nano- and amorphous structure using plasma spraying / V. N. Saunin [et al.] // Inorganic Materials: Applied Research. - 2012. - Vol. 3, Is. 3. - P. 201-209, DOI 10.1134/S2075113312030070 . - ISSN 2075-1133
Кл.слова (ненормированные):
Amorphous structure -- Coatings -- Nanostructure -- Plasma sputtering -- Plasmatron -- Amorphous coating -- Amorphous structures -- Magnetically soft materials -- Plasma sputtering -- Plasmatrons -- Coatings -- Magnetic properties -- Nanostructures -- Plasma spraying -- Plasma jets
Аннотация: A technique for producing coatings with an amorphous and nanostructure using a plasmatron with a gas-dynamic nozzle is proposed. The effect of the technical parameters of plasma spraying on the structure and magnetic properties of amorphous coatings is investigated. В© Pleiades Publishing, Ltd., 2012.

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Держатели документа:
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Baikov Institute of Metallurgy, Russian Academy of Sciences, Leninskii Pr. 49, Moscow, 117334, Russian Federation

Доп.точки доступа:
Saunin, V. N.; Telegin, S. V.; Kalita, V. I.; Denisova, E. A.; Денисова, Елена Александровна
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Spin states of 2D nanocomposites of Ni and V nanoclusters on hexagonal h-BN, BC3 and graphene / P. Avramov [et al.] // J. Mater. Sci. Technol. - 2015. - Vol. 31, Is. 10. - P. 979-985, DOI 10.1016/j.jmst.2015.08.008. - Cited References:21. - The work of Russian team was supported by Russian Scientific Foundation (Grant No. 14-13-00139). P.V.A. acknowledges JAEA ASRC and Molecular Spintronics Group for hospitality and fruitful collaboration. . - ISSN 1005-0302

РУБ Materials Science, Multidisciplinary + Metallurgy & Metallurgical
Рубрики:
BORON-NITRIDE
FILMS
Кл.слова (ненормированные):
Electronic structure -- Metal nanostructure -- Nanocomposites -- Graphene -- h-BN -- BC3 -- Spin states
Аннотация: Atomic and electronic structures of adsorbed nickel and vanadium atoms and nanoclusters (Ni-n and V-n, n = 1-10) on hexagonal h-BN and BC3 lattices were studied using DFT PBE/PBC/PW (Perdew-Burke-Ernzerhof potential of density functional theory/periodic boundary conditions/plane wave basis set) technique. For the sake of comparison the structure and properties of the same nanoclusters deposited on pristine graphene were calculated as well. It was found that for all types of supports an increase of n from 1 to 10 leaded to decrease of coordination types from eta(6) to eta(2) and eta(1). The h-BN- and BC3-based nanocomposites were characterized by high (up to 18 mu for Ni10/BC3) magnetic moments of the nanoclusters and featured by positive binding energies. The graphene-based nanocomposites revealed energetic stability and, in general, lower magnetic moments per unit cell. The direct potential energy barriers for migration of Ni eta(2)/eta(2) and eta(6)/eta(6) types of dimers on graphene were low (10.9-28.9 kJ/mol) with high reverse barriers for eta(6)/eta(6) dimers, which favored dynamically equilibrated Ni clusterization on graphene. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.

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Держатели документа:
Kyungpook Natl Univ, Taegu 702701, South Korea.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Academgorodok, Russia.
Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Kuzubov, A. A.; Кузубов, Александр Александрович; Sakai, S.; Entani, S.; Naramoto, H.; Eliseeva, N. S.; Елисеева, Наталья Сергеевна; Russian Scientific Foundation [14-13-00139]
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Three-dimensional model of quantum dots'' self-assembly under the action of laser radiation / V. A. Tkachenko [et al.] // Комп. оптика. - 2017. - Т. 41, № 4. - С. 577-580, DOI 10.18287/2412-6179-2017-41-4-577-580. - Библиогр.: 14. - The work was funded by the Russian Foundation for Basic Research (RFBR) and Krasnoyarsk Krai administration under research project No. 16-42-240410r_a, RFBR research project No. 16-32-00129 and by the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU). . - ISSN 0134-2452
Кл.слова (ненормированные):
Nanostructure fabrication -- Plasmonics -- Optical tweezers or optical manipulation
Аннотация: This study considered a process of quantum dots' self-assembly into nanostructure arrays with predefined geometry, which proceeds in the external resonant laser field. We considered the simplest case of assembling a stable structure of two particles. The problem was solved numerically using a three-dimensional model of Brownian dynamics. The idea of the method is that the attraction of the dots occurs due to the interaction of resonantly induced dipole moments, with the dots being then captured by the Van der Waals force. Finally, a three-dimensional model was considered; the average nanoparticle aggregation time as a function of the laser radiation wavelength was calculated; the probability of such structures' being formed was estimated for the calculated average aggregation time and for the laser pulse duration used in the experiment. The wavelength of the maximum probability was found to be shifted from the single particle resonance wavelength of 525 nm to the red area of 535 nm, which is in qualitative agreement with the redshift of the resonance wavelength of interacting particles.

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Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences
Siberian Federal University

Доп.точки доступа:
Tkachenko, V. A.; Tsipotan, A. S.; Slabko, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
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New method for calculations of nanostructure kinetic stability at high temperature / A. S. Fedorov [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P. 167-170, DOI 10.1016/j.jmmm.2016.12.131. - Cited References:8. - The work was supported by the Russian Foundation for Basic Research Grant N15-02-06869A and by President of Russia Scientific School Program NSh 7559.2016.2. The authors would like to thank Joint Supercomputer Center of RAS, Moscow, for the access to the MVS 100K cluster and Institute of Computational Modelling of SB RAS, Krasnoyarsk, for providing the computational resources. . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
AUGMENTED-WAVE METHOD
Кл.слова (ненормированные):
Kinetic stability -- Nanostructures -- Graphene nanoribbons
Аннотация: A new universal method is developed for determination of nanostructure kinetic stability (KS) at high temperatures, when nanostructures can be destroyed by chemical bonds breaking due to atom thermal vibrations. The method is based on calculation of probability for any bond in the structure to stretch more than a limit value L-max, when the bond breaks. Assuming the number of vibrations is very large and all of them are independent, using the central limit theorem, an expression for the probability of a given bond elongation up to L-max is derived in order to determine the KS. It is shown that this expression leads to the effective Arrhenius formula, but unlike the standard transition state theory it allows one to find the contributions of different vibrations to a chemical bond cleavage. To determine the KS, only calculation of frequencies and eigenvectors of vibrational modes in the groundstate of the nanostructure is needed, while the transition states need not be found. The suggested method was tested on calculating KS of bonds in some alkanes, octene isomers and narrow graphene nanoribbons of different types and widths at the temperature T=1200 K. The probability of breaking of the C-C bond in the center of these hydrocarbons is found to be significantly higher than at the ends of the molecules. It is also shown that the KS of the octene isomers decreases when the double C=C bond is moved to the end of the molecule, which agrees well with the experimental data. The KS of the narrowest graphene nanoribbons of different types varies by 1-2 orders of magnitude depending on the width and structure, while all of them are by several orders of magnitude less stable at high temperature than the hydrocarbons and benzene.

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Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Kuzubov, A. A.; Visotin, M. A.; Tomilin, F. N.; Томилин, Феликс Николаевич; Russian Foundation for Basic Research [N15-02-06869A]; President of Russia Scientific School Program [NSh 7559.2016.2]; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
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Shevtsov, D. V.
An ultrahigh-vacuum multifunctional apparatus for synthesis and in situ investigation of low-dimensional structures by spectral magnetoellipsometry in the temperature range of 85–900 K / D. V. Shevtsov, S. A. Lyaschenko, S. N. Varnakov // Instrum. Exp. Tech. - 2017. - Vol. 60, Is. 5. - P. 759-763, DOI 10.1134/S0020441217050086. - Cited References: 19. - This study was supported by a Grant of the President of the Russian Federation for Support of Leading Schools (project no. NSh-7559.2016.2), by the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, and the Krasnoyarsk krai foundation for support of scientific and research and technical activity as a part of the scientific project no. 16-42-243058. . - ISSN 0020-4412
Кл.слова (ненормированные):
Semiconducting silicon -- Temperature distribution -- Ultrahigh vacuum -- Ellipsometric measurements -- In-situ investigations -- Low dimensional structure -- Metallic nanostructure -- Multifunctional apparatus -- Optical and magneto-optical properties -- Temperature dependence -- Temperature range -- Optical properties
Аннотация: This paper presents the results of modernizing an ultrahigh-vacuum multifunctional apparatus that allows one to obtain semiconductor or metallic nanostructures in a single technological cycle and to investigate their optical and magneto-optical properties in a temperature range of 85–900 K. The capabilities of the developed system were demonstrated based on the example of studying the temperature dependence of the bulk Si permittivity via spectral ellipsometric measurements. © 2017, Pleiades Publishing, Inc.

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Публикация на русском языке Шевцов, Дмитрий Валентинович. Сверхвысоковакуумная многофункциональная установка для синтеза низкоразмерных структур и их in situ исследований методом спектральной магнитоэллипсометрии в температурном диапазоне 85-900 K [Текст] / Д. В. Шевцов, С. А. Лященко, С. Н. Варнаков // Приборы и техн. эксперим. : Наука, 2017. - № 5. - С. 146-150

Держатели документа:
Kirenskiy Institute of Physics, Federal Research Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Reshetnev Siberial State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lyashchenko, S. A.; Лященко, Сергей Александрович; Varnakov, S. N.; Варнаков, Сергей Николаевич; Шевцов, Дмитрий Валентинович
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Mechanochemical synthesis of hexagonal ferrites BaFe12O19 / V. Zhuravlev [et al.] // Key Eng. Mater. - 2018. - Vol. 781 KEM. - P. 119-124, DOI 10.4028/www.scientific.net/KEM.781.119. - Cited References: 15
Кл.слова (ненормированные):
Ferromagnetic resonance -- Magnetization curve -- Magnetocrystalline anisotropy -- Mechanochemical synthesis -- Nanostructure hexaferrites
Аннотация: The phase composition, structural parameters, and basic magnetic characteristics of BaFe12O19 hexaferrites prepared by the mechanochemical synthesis with subsequent annealing at a temperature of 1000°С and 1100°С for 1 h are investigated. The influence of the annealing temperature on the properties of synthesized materials is analyzed. Values of the saturation magnetization and the anisotropy field are determined. It is established that annealing temperature in the interval 1000 - 1100 °C does not significantly affect on the phase composition and the size of nanoparticles. The value of the anisotropy field increases substantially with increasing temperature.

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Держатели документа:
Tomsk State University, 36, Lenin Ave., Tomsk, 634050, Russian Federation
Tomsk Scientific Center SB RAS, 10/4, Academicheskii Pr., Tomsk, 634021, Russian Federation
L.V. Kirensky Institute of Physics SB RAS, 50, Academgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Zhuravlev, V.; Nevmyvaka, A.; Itin, V.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; International Conference on Radiation-Thermal Effects and Processes in Inorganic Materials(13th ; Tomsk)(9-14 October 2017)
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10.

    Magnetoimpedance Effect in a SOI-Based Structure / D. A. Smolyakov [et al.] // Semiconductors. - 2019. - Vol. 53, Is. 14. - P. 98-100, DOI 10.1134/S1063782619140215. - Cited References: 10. - This study was supported by the Russian Foundation for Basic Research, project no. 18-32-00035. The work was partially supported by the Ministry of Education and Science of the Russian Federation and by Siberian Branch of the Russian Academy of Sciences (Project II.8.70) and Fundamental research program of the Presidium of the RAS no. 32 “Nanostructures: physics, chemistry, biology, basics of technologies”. . - ISSN 1063-7826. - ISSN 1090-6479
   Перевод заглавия: Эффект магнитоимпеданса в структуре на основе КНИ
Рубрики:
NANOSTRUCTURE DEVICES
Кл.слова (ненормированные):
magnetoimpedance -- spintronics -- silicone on insulator -- nanosized semiconductors -- interface states
Аннотация: This paper presents the results of the study the transport properties of the SOI-based structure. Measurements were carried out on an alternating current with an external magnetic field in a wide temperature range. The influence of the magnetic field was found. We associate this effect with the influence on the surface states located at the interface, this appears as a change of the energy of their levels. This effect is enhanced by the nanoscale of the silicon channel.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036 Russia
Siberian State University of Science and Technology, Krasnoyarsk, 660014 Russia

Доп.точки доступа:
Smolyakov, D. A.; Смоляков, Дмитрий Александрович; Tarasov, A. S.; Тарасов, Антон Сергеевич; Yakovlev, I. A.; Яковлев, Иван Александрович; Volochaev, M. N.; Волочаев, Михаил Николаевич
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