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    Solid-state synthesis, dewetting, and magnetic and structural characterization of interfacial FexSn1−x layers in Sn/Fe(001) thin films / V. G. Myagkov, V. S. Zhigalov, L. E. Bykova [et al.] // J. Mater. Res. - 2021. - Vol. 36, Is. 15. - P. 3121-3133, DOI 10.1557/s43578-021-00312-4. - Cited References: 43. - This work was supported by the Russian Foundation for Basic Research together with the Government of the Krasnoyarsk Territory, the Krasnoyarsk Regional Fund of Science (Grant #19-43-240003). The work is partially based upon the experiments performed on Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS» . - ISSN 0884-2914
   Перевод заглавия: Твердотельный синтез, смачивание, магнитные и структурные характеристики межфазных слоев FexSn1−x в тонких пленках Sn/Fe(001)
Кл.слова (ненормированные):
Alloy -- Thin film -- Annealing -- Surface reaction -- Phase equilibria -- Magnetic properties
Аннотация: The phase formation sequences in 9Sn/91Fe(001) and 25Sn/75Fe(001) bilayers during thin-film solid-state reactions up to 800°C were investigated using X-ray diffraction, the torque method, and scanning electron microscopy. In both samples, FeSn2, FeSn, α-Fe1−xSnx, Fe5Sn3, α-Fe, and β-Sn were sequentially formed at the initiation temperatures Tini ~ 150°C, ~ 300°C, ~ 550°C, ~ 600°C, and ~ 700°C, respectively. Low-temperature transformations were predicted at temperatures TK1 ~ 150°C and TK2 ~ 300°C, which are absent in the phase equilibrium diagram of the Fe–Sn system. Solid-state dewetting of the 9Sn/91Fe(001) and 25Sn/75Fe(001) bilayers started at temperatures above 550°C. Overall, this work sheds new light on general chemical mechanisms governing the synthesis of intermetallic phases in Sn/Fe(001) thin films, the phase transformations, and the evolution of the dewetting process of FexSn1−x films.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50/38, Krasnoyarsk, 660036, Russian Federation
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, 50/24 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Research Center Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Bykova, L. E.; Быкова, Людмила Евгеньевна; Solovyov, L. A.; Matsynin, A. A.; Мацынин, Алексей Александрович; Balashov, Yu. Yu.; Балашов, Юрий Юрьевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Bondarenko, G. N.
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    Zobov, V. E.
    Sequences of selective rotation operators for three group clustering on qutrits by means quantum annealing / V. E. Zobov, I. S. Pichkovskiy // Proceedings of the International Conference "Micro- and Nanoelectronics – 2021". ICMNE – 2021. - 2021. - Ст. q3-02. - P. 149. - Cited References: 4
   Перевод заглавия: Последовательности селективных операторов поворотов для кластеризации на три группы на кутритах посредством квантового отжига

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Доп.точки доступа:
Pichkovskiy, I. S.; Зобов, Владимир Евгеньевич; "Micro- and Nano-Electronics", International Conference(2021 ; Oct. ; Zvenigorod); "Микро- и наноэлектроника", международная конференция(2021 ; окт. ; Звенигород)Квантовая информатика, симпозиум(2021 ; окт. ; Звенигород); Российская академия наук; Физико-технологический институт имени К.А. Валиева РАН
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    Zobov, V. E.
    Clustering by quantum annealing on the three-level quantum elements qutrits / V. E. Zobov, I. S. Pichkovskiy // Quantum Inf. Process. - 2022. - Vol. 21, Is. 4. - Ст. 144, DOI 10.1007/s11128-022-03482-0. - Cited References: 28. - This study was supported by the Theoretical Physics and Mathematics Advancement Foundation “BASIS” #20-1-5-41-1. We are grateful for their trust and assistance in research . - ISSN 1570-0755
   Перевод заглавия: Кластеризация посредством квантового отжига на квантовых трёхуровневых элементах кутритах
Кл.слова (ненормированные):
Quantum adiabatic algorithm -- Quantum annealing -- Qutrit -- Clustering
Аннотация: Clustering is grouping of data by the proximity of some properties. We report on the possibility of increasing the efficiency of clustering of points in a plane using artificial quantum neural networks after the replacement of the two-level neurons called qubits represented by the spins S = 1/2 by the three-level neurons called qutrits represented by the spins S = 1. The problem has been solved by the slow adiabatic change of the Hamiltonian in time. The methods for controlling a qutrit system using projection operators have been developed and the numerical simulation has been performed. The Hamiltonians for two well-known clustering methods, one-hot encoding and k-means, have been built. The first method has been used to partition a set of six points into three or two clusters and the second method, to partition a set of nine points into three clusters and seven points into four clusters. The simulation has shown that the clustering problem can be effectively solved on qutrits represented by the spins S = 1. The advantages of clustering on qutrits over that on qubits have been demonstrated. In particular, the number of qutrits required to represent N data points is smaller than the number of qubits by a factor of log 2N/ log 3N. For qutrits, the simplest is to partition the data points into three clusters rather than two ones. At the data partition into more than three clusters, it has been proposed to number the clusters by the numbers of states of the corresponding multi-spin subsystems, instead of using the numbers of individual spins. This reduces even more the number of qutrits (Nlog 3K instead of NK) required to implement the algorithm.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Pichkovskiy, I. S.; Пичковский, Иван Сергеевич; Зобов, Владимир Евгеньевич
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    Zobov, V. E.
    Associative memory on qutrits by means of quantum annealing / V. Zobov, I. Pichkovskiy // Quantum Inf. Process. - 2020. - Vol. 19, Is. 9. - Ст. 342, DOI 10.1007/s11128-020-02851-x. - Cited References: 23 . - ISSN 1570-0755. - ISSN 1573-1332
   Перевод заглавия: Ассоциативная память на кутритах посредством квантового отжига
Кл.слова (ненормированные):
Quantum adiabatic algorithm -- Quantum annealing -- Qubit -- Qutrit -- Associative memory -- Memory capacity
Аннотация: When associative memory is implemented on the well-studied Hopfield network, patterns are recorded in the interaction constants between binary neurons. These constants are chosen so that each pattern should have its own minimum energy of the system described by the Ising model. In the quantum version of the Hopfield network, it was proposed to recall such states by the adiabatic change of the Hamiltonian in time. Qubits, quantum elements with two states, for example, spins with S=1/2 were considered as neurons. In this paper, for the first time, we study the function of associative memory using three-level quantum elements-qutrits, represented by spins with S=1. We record patterns with the help of projection operators. This choice is due to the need to operate with a state with a zero spin projection, whose interaction with the magnetic field vanishes. We recall the state corresponding to one of the patterns recorded in the memory, or superposition of such states by means of quantum annealing. To equalize the probabilities of finding the system in different states of superposition, an auxiliary Hamiltonian is proposed, which is turned off at the end of evolution. Simulations were performed on two and three qutrits and an increase in the memory capacity after replacing qubits with qutrits was shown.

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Держатели документа:
RAS, Fed Res Ctr, Kirensky Inst Phys, KSC,SB, Akademgorodok 50,Bld 38, Krasnoyarsk, Russia.

Доп.точки доступа:
Pichkovskiy, I. S.; Пичковский, Иван Сергеевич; Зобов, Владимир Евгеньевич
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Amorphous and Crystalline Nickel Oxide Films Obtained by the Extraction-Pyrolysis Method for Electrochromic Cells / A. L. Belousov, T. N. Patrusheva, A. A. Karacharov [et al.] // Theor. Found. Chem. Eng. - 2020. - Vol. 54, Is. 4. - P. 699-705, DOI 10.1134/S0040579520040041. - Cited References: 8. - This work was performed as part of the program "Research and Development for the Priority Areas of the Russian Science-and-Technology Sector for 2014-2020"; Grant Agreement no. 075-15-2019-1843; the Project Unique Identifier RFMEFI60719X0307 . - ISSN 0040-5795. - ISSN 1608-3431

РУБ Engineering, Chemical
Рубрики:
NIO THIN-FILMS
Кл.слова (ненормированные):
nickel extract -- extraction-pyrolysis technology -- thin film -- annealing -- electrochromic cell
Аннотация: This paper reports studies of thin films of nickel oxide obtained by the extraction–pyrolysis method on glass and quartz substrates at temperatures of 380–600°C. The films have been characterized by atomic force microscopy and X-ray diffraction. It is shown that amorphous and crystalline nickel oxide films are formed on the glass. The grain size depends on the annealing temperature, while increased annealing temperatures lead to recrystallization and a decrease in the grain size in NiO films from 130 to 35 nm.

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Публикация на русском языке Пленки аморфного и кристаллического оксида никеля, полученные экстракционно-пиролитическим методом для электрохромных ячеек [Текст] / А. Л. Белоусов [и др.] // Хим. технол. - 2019. - Т. 20 № 5. - С. 215-221

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Baltic State Tech Univ VOENMEX, St Petersburg 190005, Russia.
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia.

Доп.точки доступа:
Belousov, A. L.; Patrusheva, T. N.; Karacharov, A. A.; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Kirik, S. D.; Khol'kin, A. I.; program "Research and Development for the Priority Areas of the Russian Science-and-Technology Sector for 2014-2020" [075-15-2019-1843]; [RFMEFI60719X0307]
}
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Modeling of quantum annealing in the ternary system: the factorization of the number 551 / scientific supervisor V. E. Zobov ; language advisor I. V. Alekseenko // Соврем. проблемы радиоэлектроники : сб. науч. трудов : электронное издание / ред. А. И. Громыко. - Красноярск : СФУ, 2018. - С. 496-499. - Библиогр.: 6 . - ISBN 978-5-7638-3902-9
Аннотация: In this paper we present the decision of one of the most hard combination problem with qutrit, factorization number. We present two factors that form this number. Knowing the length of one of them, the problem is simplified and can be resolved. Our work solves the problem of factorization of number 551 with the length of multiplier, which equals 4.

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Держатели документа:
Сибирский федеральный университет, Институт инженерной физики и радиоэлектроники
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Громыко, А. И. \ред.\; Pichkovskiy, I. S.; Zobov, V. E.; Зобов, Владимир Евгеньевич; Alekseenko, I. V.; "Современные проблемы радиоэлектроники", всероссийская научно-техническая конференция, посвященная 123-й годовщине Дня радио(21 ; 2018 ; май ; 3-4 ; Красноярск); Сибирский федеральный университет
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    Zobov, V. E.
    Sequences of selective rotation operators for three group clustering on qutrits by means of quantum annealing / V. E. Zobov, I. S. Pichkovskiy // Proc. SPIE. - 2022. - Vol. 12157. - Ст. 121571Z, DOI 10.1117/12.2622732. - Cited References: 25. - This work was supported by a grant from the Fund for the Development of Theoretical Physics and Mathematics "Basis" # 20-1-5-41-1
   Перевод заглавия: Последовательности селективных операторов поворота для кластеризации на три группы на кутритах посредством квантового отжига
Кл.слова (ненормированные):
quantum annealing -- clustering -- qutrit -- selective rotation operators
Аннотация: Recently, it was demonstrated that the clustering considered in this articlec, which consists in partitioning a set of data points into subsets depending on the proximity of some properties, can be performed using quantum annealing on a system of two-level quantum elements - qubits. In previous work, we proposed to pass from qubits to qutrits - three-level quantum elements showed the advantages of such a replacement and obtained a time-dependent effective Hamiltonian. In the present paper, we have found a sequence of selective rotation operators that allows one to realize adiabatic evolution with this effective Hamiltonian in the discrete-time approximation. On five qutrits, represented by spins S = 1, we performed a simulation of clustering a set of six points on a plane into three groups by means of quantum annealing.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Russian Federation

Доп.точки доступа:
Pichkovskiy, I. S.; Пичковский, Иван Сергеевич; Зобов, Владимир Евгеньевич; International Conference on Micro- and Nano-Electronics(14 ; 2021 ; Oct. 4-8 ; Zvenigorod, Russian Federation)
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Effects of annealing on magnetic properties and structural features of nanocrystalline Fe79Zr10N11 films / Sheftel E.N., Iskhakov R.S. [и др.] // Moscow Int. Symp. on Magnet. (MISM-2008) : June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст. 25PO-13-10. - p. 750-751. - Библиогр.: 3. - Support by RFFI grant 08–03–00104–a is acknowledged

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Доп.точки доступа:
Sheftel, E. N.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Sidorenko, P. K.; Utitskikh, S. I.; Perov, N. S.; Moscow International Symposium on Magnetism(4 ; 2008 ; Jun. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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    Исследование фазовых превращений в тонкопленочных структурах Sn/Co при вакуумном отжиге / A. A. Мацынин, С. В. Комогорцев, Л. Е. Быкова, Л. А. Еремин // Магнитные материалы. Новые технологии : тез. докл. IX Байкал. междунар. конф. BICMM-2023 / чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - С. 125-126, DOI 10.26516/978-5-9624-2178-0.2023.1-207. - Библиогр.: 3 . - ISBN 978-5-9624-2178-0
   Перевод заглавия: Study of thase transformations in thin-film Sn/Co structures under vacuum annealing

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Держатели документа:
Институт физики им. Л. В. Киренского СО РАН
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева

Доп.точки доступа:
Аплеснин, Сергей Степанович \чл. прогр. ком.\; Aplesnin, S. S.; Балаев, Дмитрий Александрович \чл. прогр. ком.\; Balaev, D. A.; Овчинников, Сергей Геннадьевич \чл. прогр. ком.\; Ovchinnikov, S. G.; Исхаков, Рауф Садыкович \чл. орг. ком.\; Iskhakov, R. S.; Мацынин, Алексей Александрович; Matsynin, A. A.; Комогорцев, Сергей Викторович; Komogortsev, S. V.; Быкова, Людмила Евгеньевна; Bykova, L. E.; Еремин, Леонид Аркадьевич; Байкальская международная конференция "Магнитные материалы. Новые технологии"(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Magnetic materials. New tecnologies", Baikal International Conference(9 ; 2023 ; Sept. ; 11-14 ; Baikalsk); Иркутский государственный университет
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10.

The phases formed in Sn/Co thin bilayer upon heating / L. Eremin, A. Matsynin, Yu. Balashov [et al.] // J. Solid State Chem. - 2024. - Vol. 334. - Ст. 124693, DOI 10.1016/j.jssc.2024.124693. - Cited References: 33 . - ISSN 0022-4596. - ISSN 1095-726X
Кл.слова (ненормированные):
Thin films -- Solid-state chemistry -- Metallic bilayer -- Annealing
Аннотация: The structure and phases formed in Sn/Co thin films are interesting both from the solid-state chemistry point of view and due to applications of such a metallic bilayer. The phases forming in thin films Sn/Co obtained by thermal vacuum evaporation on two different substrates SiO2 and MgO(100) at different annealing temperatures have been studied. Annealing above 110°С results in intermetallics formation in the films. The hcp-cobalt is grown in the films on SiO2 substrate, and the fcc-Co is observed on MgO(100) substrate. It is found that the stable α-Co3Sn2 intermetallic is formed at higher annealing temperature in film on MgO(100) substrate. We show that transformations related to mass transfer in the Sn/Co bilayers were up to 500°С and were finished upon reaching the thermodynamically equilibrium phase composition at this temperature.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Applied Physics Department, Reshetnev Siberian State University of Science and Technology, 660037, Krasnoyarsk, Russia

Доп.точки доступа:
Eremin, L. A.; Еремин, Леонид Аркадьевич; Matsynin, A. A.; Мацынин, Алексей Александрович; Balashov, Yu. Yu.; Балашов, Юрий Юрьевич; Myagkov, V. G.; Мягков, Виктор Григорьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Bykova, L. E.; Быкова, Людмила Евгеньевна; Komogortsev, S. V.; Комогорцев, Сергей Викторович
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