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Ignatchenko, V. A.
Waves in a superlattice with arbitrary interlayer boundary thickness / V. A. Ignatchenko, O. N. Laletin // Phys. Solid State. - 2004. - Vol. 46, Is. 12. - P. 2292-2300, DOI 10.1134/1.1841396. - Cited References: 34 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PERIODIC STRUCTURES
   RAYLEIGH-WAVES
   LAYERED MEDIUM
   ELASTIC-WAVES
   SPIN-WAVES
   SPECTRUM
   MEDIA
   PROPAGATION
   EXCITATIONS
   MULTILAYERS
Аннотация: The transmittance D(omega), reflectance R(omega), and dispersion omega(k) are investigated for waves of various nature propagating through a one-dimensional superlattice (multilayer structure) with arbitrary thickness of the interlayer boundary. The dependences of the band gap widths Deltaomega(m) and their positions in the wave spectrum of the superlattice on the interlayer boundary thickness d and the band number m are calculated. Calculations are performed in terms of the modified coupled-mode theory (MCMT) using the frequency dependence of R(omega), as well as in the framework of perturbation theory using the function omega(k), which made it possible to estimate the accuracy of the MCMT method; the MCMT method is found to have a high accuracy in calculating the band gap widths and a much lower accuracy in determining the gap positions. It is shown that the m dependence of Deltaomega(m) for electromagnetic (or elastic) waves is different from that for spin waves. Furthermore, the widths of the band gaps with m = 1 and 2 are practically independent of d, whereas the widths of all gaps for m 2 depend strongly on d. Experimental measurements of these dependences allow one to determine the superlattice interface thicknesses by using spectral methods. (C) 2004 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Laletin, O. N.; Игнатченко, Вальтер Алексеевич
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Altunin, R. R.
Structural phase transformations in Al/Pt bilayer thin films during the solid-state reaction / R. R. Altunin, E. T. Moiseenko, S. M. Zharkov // Phys. Solid State. - 2018. - Vol. 60, Is. 7. - P. 1413-1418, DOI 10.1134/S106378341807003X. - Cited References: 26. - This study was supported by the Russian Foundation for Basic Research, project no. 16-33-00475 mol_a. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
AL
   SYSTEM
   MULTILAYERS
   ALUMINUM
   HEAT
Аннотация: A sequence of phases forming during the solid-phase reaction in Al/Pt bilayer thin films has been investigated by in situ electron diffraction. It is shown that the amorphous PtAl2 phase forms first during the solid-phase reaction initiated by heating. Upon further heating, PtAl2, Pt2Al3, PtAl, and Pt3Al crystalline phases sequentially form, which is qualitatively consistent with an effective formation heat model. The content of phases forming during the reaction has been quantitatively analyzed and the structural phase transformations have been examined.

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Публикация на русском языке Алтунин, Роман Русланович. Структурные фазовые превращения при твердофазной реакции в тонких двухслойных пленках Al/Pt [Текст] / Р. Р. Алтунин, Е. Т. Моисеенко, С. М. Жарков // Физ. тверд. тела. - 2018. - Т. 60 Вып. 7. - С. 1397–1402

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

Доп.точки доступа:
Moiseenko, E. T.; Zharkov, S. M.; Жарков, Сергей Михайлович; Russian Foundation for Basic Research [16-33-00475 mol_a]
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Spontaneous magnetization and characteristics of temperature-induced magnetization of planar Co/Si nanostructures / V. O. Vas'kovskii [et al.] // Low Temp. Phys. - 2007. - Vol. 33, Is. 4. - P. 324-328 ; Физика низких температур, DOI 10.1063/1.2720079. - Cited References: 9 . - ISSN 1063-777X

РУБ Physics, Applied
Рубрики:
MULTILAYERS
FILMS
Аннотация: The magnetic properties of planar Co/Si nanostructures with different nominal thicknesses of the magnetic (2-42 nm) and nonmagnetic (0.3-10 nm) constituent layers are studied in the temperature range 4.2-300 K. It is established that in the presence of Si layers the spontaneous magnetization of Co decreases and its temperature dependence changes, and magnetic hysteresis is modified. The interlayer influence is interpreted as being due to the diffusion of Si into the Co layers, which results in the formation of magnetically disordered boundary interfaces with low average magnetization. The depth of the interfaces depends on the nominal thickness of the Si layers and is estimated to reach 1.6 nm. A qualitative explanation of the characteristics of the magnetization of the experimental objects under the influence of a magnetic field and temperature is given in a model where the interfaces have a granular microstructure. Electron-microscope observations confirm some assumptions of the proposed model. (C) 2007 American Institute of Physics.

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Держатели документа:
AM Gorkil Ural State Univ, Ekaterinburg 620083, Russia
Russian Acad Sci, Siberian Branch, LV Kirenskii Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Ural Branch, Inst Phys Met, Ekaterinburg 620241, Russia
ИФ СО РАН
A. M. Gor'kii Ural State University, pr. Lenina 51, Ekaterinburg 620083, Russian Federation
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of the Physics of Metals, Ural Branch, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg 620241, Russian Federation

Доп.точки доступа:
Vas'kovskii, V. O.; Patrin, G. S.; Патрин, Геннадий Семёнович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Svalov, A. V.; Shchegoleva, N. N.

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    Ignatchenko, V. A.
    Spectral properties of waves in superlattices with 2D and 3D inhomogeneities / V. A. Ignatchenko, D. S. Tsikalov // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 2. - P. 232-244, DOI 10.1134/S1063776111080061. - Cited References: 24. - This study was supported in part by the program of the Presidium of the Russian Academy of Sciences (grant no. 27.1), Federal Targeted Program (State contract no. 02.740.11.0220), and Targeted Programs "Development of the Higher School Scientific Potential" in 2009-2010 and 2011 years. . - ISSN 1063-7761
Рубрики:
X-RAY REFLECTION
   PERTURBED FIELDS
   MULTILAYERS
   SUSCEPTIBILITY
   PROPAGATION
   INTERFACES
   SCATTERING
   SYSTEM
Аннотация: We investigate the dynamic susceptibility and one-dimensional density of states in an initially sinusoidal superlattice containing simultaneously 2D phase inhomogeneities simulating correlated rough-nesses of superlattice interfaces and 3D amplitude inhomogeneities of the superlattice layer materials. The analytic expression for the averaged Green's function of the sinusoidal superlattice with two phase inhomogeneities is derived in the Bourret approximation. It is shown that the effect of increasing asymmetry in the peak heights of dynamic susceptibility at the Brillouin zone boundary of the superlattice, which was discovered earlier [15] upon an increase in root-mean-square (rms) fluctuations, also takes place upon an increase in the correlation wavenumber of inhomogeneities. However, the peaks in this case also become closer, and the width and depth of the gap in the density of states decrease thereby. It is shown that the enhancement of rms fluctuations of 3D amplitude inhomogeneities in a superlattice containing 2D phase inhomogeneities suppresses the effect of dynamic susceptibility asymmetry and leads to a slight broadening of the gap in the density of states and a decrease in its depth. Targeted experiments aimed at detecting the effects studied here would facilitate the development of radio-spectroscopic and optical methods for identifying the presence of inhomogeneities of various dimensions in multilayer magnetic and optical structures.

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Держатели документа:
[Ignatchenko, V. A.
Tsikalov, D. S.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Tsikalov, D. S.; Цикалов, Денис Сергеевич; Игнатченко, Вальтер Алексеевич
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Solid-Phase Synthesis of Co(7)Sm(2)(110) Epitaxial Nanofilms: Structural and Magnetic Properties / V. S. Zhigalov [et al.] // JETP Letters. - 2008. - Vol. 88, Is. 6. - P. 389-393, DOI 10.1134/S0021364008180100. - Cited References: 28. - This work was supported by the Russian Foundation for Basic Research (project no. 07-03-00190) and by the program "Development of the Scientific Potentiality of the Higher Education" (project no. 2.1.1.7376). . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
HIGH-TEMPERATURE SYNTHESIS
   THIN-FILMS
   MARTENSITIC TRANSFORMATIONS
   STATE SYNTHESIS
   MULTILAYERS
   TRANSITION
Аннотация: The solid-phase synthesis of the Co(7)Sm(2) and Co(17)Sm(2) magnetically hard phases in Co/Sm/Co(110) epitaxial film systems has been experimentally investigated. The Co(7)Sm(2) phase is first formed at the Sm/Co interface at a relatively low (similar to 300 degrees C) temperature. As the annealing temperature increases to similar to 450 degrees C, the Co(17)Sm(2)(110) phase grows epitaxially on the Co(7)Sm(2)(110) phase. The saturation magnetization and biaxial anisotropy constant in the samples vary with the formation of the Co(7)Sm(2) and Co(17)Sm(2) phases. Investigations of the solidphase synthesis in the nanofilms reveal the existence of a new structure phase transition at 300 degrees C in the Co-Sm system with a high cobalt content.

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Держатели документа:
[Zhigalov, V. S.
Myagkov, V. G.
Bykova, L. E.] Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
[Solov'ev, L. A.
Bondarenko, G. N.] Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia
ИФ СО РАН
ИХХТ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Zhigalov, V. S.; Жигалов, Виктор Степанович; Myagkov, V. G.; Мягков, Виктор Григорьевич; Solov'ev, L. A.; Соловьев, Леонид Александрович; Bondarenko, G. N.; Бондаренко, Галина Николаевна; Bykova, L. E.; Быкова, Людмила Евгеньевна
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Solid-phase reactions and the order-disorder phase transition in thin films / V. G. Myagkov [et al.] // Tech. Phys. - 2001. - Vol. 46, Is. 6. - P. 743-748, DOI 10.1134/1.1379645. - Cited References: 28 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
HIGH-TEMPERATURE SYNTHESIS
   ALLOY-FILMS
   KINETICS
   MULTILAYERS
   SYSTEMS
   GROWTH
Аннотация: A comparative analysis was carried out of the initiation temperatures of solid-phase reactions in bilayer solid films and the Kurnakov temperatures of the phases forming in the reaction products. It has been shown that in superstructures where ordering is usually observed, the Kurnakov temperature coincides with the initiation temperature of the solid-phase reactions if no other solid-phase structural transformation precedes the order-disorder phase transition in the state diagram. A rule was proposed by which pairs of films capable of entering into solid-phase reactions and their initiation temperatures can be determined. (C) 2001 MAIK "Nauka/Interperiodica".

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

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Bykova, L. E.; Быкова, Людмила Евгеньевна; Bondarenko, G. N.; Бондаренко, Галина Николаевна; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Myagkov, F. V.
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Self-propagating high-temperature synthesis in Pt/Co/MgO(001) epitaxial thin films / V. G. Myagkov [et al.] // Phys. Solid State. - 2000. - Vol. 42, Is. 5. - P. 968-972, DOI 10.1134/1.1131321. - Cited References: 26 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PERPENDICULAR MAGNETIC-ANISOTROPY
   LAYERED STRUCTURES
   CO/PT
   MULTILAYERS
   SUPERLATTICES
   PTFE(001)
   GROWTH
   PD/CO
Аннотация: The self-propagating high-temperature synthesis in the two-layer and multilayer Pt / Co(001) thin films has been investigated. It is shown that the initiation of the synthesis occurs at temperatures of 770-820 K. After the synthesis in the two-layer film samples, the PtCo(001) disordered phase exhibits an epitaxial growth at the interface between cobalt and platinum layers. In the multilayer Pt/Co(001) thin films, the self-propagating high-temperature synthesis also brings about the formation of the PtCo(001) disordered phase on the MgO(001) surface. Further annealing at a temperature of 870 K for 4 h results in the transition of the PtCo(001) disordered phase to the ordered phase. Rapid thermal annealing of the Pt/Co(001) multilayer films at a temperature of 1000 K leads to the formation of the CoPt3 phase. The magnetic characteristics change in accord with the structural transformations in Pt/Co film samples. (C) 2000 MAIK "Nauka/Interperiodica".

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

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Li, L. A.; Ли, Людмила Алексеевна; Bykova, L. E.; Быкова, Людмила Евгеньевна; Turpanov, I. A.; Турпанов, Игорь Александрович; Kim, P. D.; Ким, Пётр Дементьевич; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Bondarenko, G. N.; Бондаренко, Галина Николаевна
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Observation of nonmonotonic oscillatory interlayer exchange coupling in Co/Cu/CoO films with varying Cu spacer thickness / Y. Y. Song [et al.] // J. Appl. Phys. - 2008. - Vol. 103: 52nd Annual Conference on Magnetism and Magnetic Materials (NOV 05-09, 2007, Tampa, FL), Is. 7. - Ст. 07C112, DOI 10.1063/1.2831390. - Cited References: 20 . - ISSN 0021-8979

РУБ Physics, Applied
Рубрики:
GIANT MAGNETORESISTANCE
   MAGNETIC-ANISOTROPY
   LAYERS
   BIAS
   SUPERLATTICES
   MULTILAYERS
   TRILAYERS
Кл.слова (ненормированные):
Copper -- Film thickness -- Thermal effects -- CoCuCoO films -- Oscillatory interlayer exchange coupling. -- Metallic films
Аннотация: We report our experimental observation of interlayer exchange coupling phenomena in CoO/Cu/Co trilayers with systematic variation of Cu spacer layer thickness as well as temperature. It has been found that there exists a clear indication of nonmonotonically varying oscillatory interlayer exchange coupling. The amplitude of oscillation increases, reaches to the maximum, and decreases with increasing Cu spacer thickness from 1 to 16 atomic layers for all temperature ranges between 70 and 200 K. (c) 2008 American Institute of Physics.

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Держатели документа:
[Song, Young-Yeal
Kim, Dong-Hyun
Yu, Seong-Cho] Chungbuk Natl Univ, BK21 Phys Program, Cheongju 361763, South Korea
[Song, Young-Yeal
Kim, Dong-Hyun
Yu, Seong-Cho] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, South Korea
[Kim, Petr D.
Turpanov, Igor Alexandrovic
Lee, Liudmila Alexeevna] SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Buzmakov, Afanasy Egorovic] Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
[Lee, Kyu Won] Korea Res Inst Stand & Sci, Taejon 305340, South Korea
ИФ СО РАН
BK21 Physics Program, Department of Physics, Chungbuk National University, Cheongju 361-763, South Korea
Kirensky Institute of Physics SB RAS, Academgorodok, 50, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Technical University, Kirenskogo, 26, Krasnoyarsk, 660074, Russian Federation
Korea Research Institute of Standard and Science, Taejon 305-340, South Korea

Доп.точки доступа:
Song, Y. Y.; Kim, D. H.; Yu, S. C.; Kim, P. D.; Ким, Пётр Дементьевич; Turpanov, I. A.; Турпанов, Игорь Александрович; Lee, L. A.; Ли, Людмила Алексеевна; Buzmakov, A. E.; Lee, K. W.
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Mechanism of magnetic ordering in Dy1-xNix-Nibilayer films / S. G. Ovchinnikov [et al.] // Phys. Solid State. - 2007. - Vol. 49, Is. 5. - P. 900-904, DOI 10.1134/S1063783407050162. - Cited References: 18. - This work was supported by the Department of Physical Sciences of the Russian Academy of Sciences (program “Spintronics”) and the Siberian Division of the Russian Academy of Sciences (complex integration project no. 3.5) . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
DYSPROSIUM
   MULTILAYERS
   SURFACE
   DY
Кл.слова (ненормированные):
73 -- 20 -- At -- 73 -- 61 -- At -- 75 -- 70 -- -i
Аннотация: A mechanism for the magnetic ordering of dysprosium in Dy1-x Ni (x) -Ni bilayer films is proposed. This ordering was discovered earlier by the authors when studying magnetic circular dichroism. For x exceeding a threshold value (similar to 0.05), the contribution from the Dy1-x Ni (x) layer in a bilayer film to the magnetic circular dichroism over the temperature range 80-300 K is approximately equal in magnitude to the magnetic circular dichroism observed in a single-layer Dy film at temperatures below the ferromagnetic phase transition temperature of Dy (similar to 100 K). Since magnetic circular dichroism is an effect linear in magnetization, the observed effect is associated with magnetic ordering of the Dy1-x Ni (x) layer in bilayer films due to the simultaneous influence of two factors: the incorporation of Ni into the Dy layer and the influence of the continuous Ni sublayer. The ferromagnetic ordering of a dysprosium layer doped with nickel (under conditions of an atomic contact with a continuous nickel layer) was confirmed by the field dependences of the polar and longitudinal Kerr effects. It was shown that both layers in the bilayer structure are magnetized in the same direction and characterized by an anisotropy of the easy-plane type. The magnetic ordering is assumed to be due to the change in the density of states of the Dy1-x Ni (x) alloy caused by hybridization with the narrow peaks near the Fermi level characteristic of nickel.

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Публикация на русском языке Механизм магнитного упорядочения в двухслойных пленках Dy[1-x]Ni[x]-Ni [Текст] / С. Г. Овчинников [и др.] // Физ. тверд. тела. - 2007. - Т. 49 Вып. 5. - С. 854-858

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Markov, V. V.; Марков, Владимир Витальевич; Edelman, I. S.; Эдельман, Ирина Самсоновна; Seredkin, V. A.; Середкин, Виталий Александрович
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10.

Magnetoresonance properties of three-layer Co/Ge/Co films / G. S. Patrin [et al.] // Phys. Solid State. - 2016. - Vol. 58, Is. 5. - P. 1034-1040, DOI 10.1134/S1063783416050206. - Cited References:20. - This study was performed in the framework of the State Task of the Ministry of Education and Science of the Russian Federation to the Siberian Federal University (task no. 3.2534.2014/K) and was supported by the Russian Federation for Basic Research (project no. 14-02-00238-a). . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
Magnetic-properties
   Multilayers
   Spacer
   Layers
Аннотация: Three-layer Co/Ge/Co films have been studied using electron magnetic resonance. It has been established that the resonance spectrum of the film is a superposition of two Lorentzian lines. It has been found that the anisotropy induced at the cobaltaEuro'germanium interface makes the main contribution to the resonance spectrum and determines its features. The temperature dependences of the anisotropy field and the parameters of the interlayer exchange have been measured. The interlayer interactions exhibit an antiferromagnetic character and have been explained in terms of a model similar to the description of superexchange in magnetic dielectrics.

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Публикация на русском языке Магниторезонансные свойства трехслойных пленок Co/Ge/Co [Текст] / Г. С. Патрин [и др.] // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2016. - Т. 58 Вып. 5. - С. 1000-1006

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Akad 50-38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Pr Svobodny 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Kobyakov, A. V.; Кобяков, Александр Васильевич; Turpanov, I. A.; Турпанов, Игорь Александрович; Patrin, K. G.; Патрин, Константин Геннадьевич; Rautskii, M. V.; Рауцкий, Михаил Владимирович; Russian Federation for Basic Research [14-02-00238-a]
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