Труды сотрудников института физики

/ A. A. Kuzubov [et al.] // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 7. - P. 1088-1090, DOI 10.1134/S0036024412070126. - Cited References: 18 . - ISSN 0036-0244РУБ Chemistry, Physical

Аннотация: Thermodynamic stabilities of mono- and bivacancies in graphene for deformed and nondeformed lattices are estimated by means of quantum-chemical calculations. Monovacancy hopping constants are evaluated in dependence on the applied uniaxial deformations.

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Держатели документа:
[Kuzubov, A. A.
Anan'eva, Yu E.
Fedorov, A. S.
Tomilin, F. N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Kuzubov, A. A.
Fedorov, A. S.
Tomilin, F. N.
Krasnov, P. O.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Kuzubov, A. A.
Krasnov, P. O.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Anan'eva, Y. E.; Fedorov, A. S.; Федоров, Александр Семенович; Tomilin, F. N.; Томилин, Феликс Николаевич; Krasnov, P. O.; Краснов, Павел Олегович

/ E. N. Kablov [et al.] // Russ. Metall. (Metally). - 2014. - Vol. 2014, Is. 9. - P. 721–724, DOI 10.1134/S0036029514090080. - Cited References: 15 . - ISSN 0036-0295. - ISSN 1555-6255
Аннотация: Sintered (Pr, Dy)–(Fe1 – yCoy)–B materials with up to y ≈ 0.5 atomic fractions have been studied. Boron is found to be a movable element, and its diffusion between principal magnetic phase A and other boron containing phases determines the properties of the materials. The structure of principal magnetic phase grains is sufficiently complex: their periphery is enriched in boron. The enrichment is shown to cause a decrease in the coercive force of the materials to zero after sintering.

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Держатели документа:
All-Russia Scientific Research Institute of Aviation Materials, ul. Radio 17, Moscow, 105005, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, bld. 38, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kablov, E. N.; Piskorskii, V. P.; Valeev, R. A.; Ospennikova, O. G.; Rezchikova, I. I.; Volkov, N. V.; Волков, Никита Валентинович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович

/ V. N. Voronov, K. S. Aleksandrov // Fiz. Tverd. Tela. - 1985. - Vol. 27, Is. 7. - P. 1968-1976. - Cited References: 32 . - ISSN 0367-3294

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Воронов, Владимир Николаевич

/ A. S. Fedorov [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 112, Is. 5. - P. 820-824, DOI 10.1134/S1063776111040042. - Cited References: 35 . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: The effect of isolated vacancies on the elastic properties of a graphene sheet has been investigated by the ab initio density functional method. An almost inverse linear dependence of the Young's modulus on the concentration of vacancies has been revealed. The height of potential barriers for the motion of vacancies in various directions has been calculated as a function of various independent applied strains. The velocity of vacancies at various temperatures has been calculated as a function of applied strains using the transition state theory. DOI: 10.1134/S1063776111040042

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Держатели документа:
[Fedorov, A. S.
Popov, Z. I.
Kuzubov, A. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Fedorov, D. A.
Anan'eva, Yu. E.
Eliseeva, N. S.
Kuzubov, A. A.] Siberian Fed Univ, Krasnoyarsk 660028, Russia
ИФ СО РАН
Siberian Branch, Kirensky Institute of Physics, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660028, Russian Federation

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Fedorov, D. A.; Федоров, Дмитрий Александрович; Popov, Z. I.; Попов, Захар Иванович; Anan'eva, Y. E.; Eliseeva, N. S.; Kuzubov, A. A.; Кузубов, Александр Александрович

/ Y. N. Ivanov [et al.] // Phys. Solid State. - 2004. - Vol. 46, Is. 10. - P. 1845-1850, DOI 10.1134/1.1809417. - Cited References: 15 . - ISSN 1063-7834РУБ Physics, Condensed Matter

Аннотация: The ion mobility in a crystal of partially deuterated potassium hydroselenate (KHSe) was studied using nuclear spin resonance (NSR) of H-1, H-2, Se-77, and K-39 in a wide temperature range. The temperature dependences of the deuterium NSR spectra above 360 K exhibit changes in the line shape characteristic of chemical exchange processes. These exchange processes were studied in detail using two-dimensional H-2 NSR spectroscopy. It was ascertained that the exchange between deuterons of hydrogen bonds take place in the entire temperature range under study. However, the measured conductivity was approximately one-hundredfold lower than that estimated from the exchange frequencies. It was assumed that the low conductivity in the temperature range under study is caused by closed dimers of SeO4 groups in the KHSe structure. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Leipzig, D-04103 Leipzig, Germany
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Leipzig University, Leipzig, D-04103, Germany

Доп.точки доступа:
Ivanov, Y. N.; Иванов, Юрий Николаевич; Sukhovskii, A. A.; Суховский, Андрей Андреевич; Aleksandrova, I. P.; Александрова, Инга Петровна; Totz, J.; Michel, D.

/ V. A. Gavrichkov, S. G. Ovchinnikov // Physica B. - 1999. - Vol. 259-61: International Conference on Strongly Correlated Electron Systems (SCES 98) (JUL 15-18, 1998, PARIS, FRANCE). - P. 828-830, DOI 10.1016/S0921-4526(98)00875-8. - Cited References: 4 . - ISSN 0921-4526РУБ Physics, Condensed Matter

Аннотация: We present a two-time of relaxation approach at an analysis of a magnetoresistance in ferromagnetic manganese perovskites La(1-x)(Ca,Sr)(x)MnO. To explain a change in the low-held response from predominantly quadratic dR/dH\(H-->0) = 0 for T > T(c) to linear dR/dH\(H-->0) for T < T(c) as noted in the measurements in thin films La(0.7)Ca(0.3)MnO(3) we calculated held and temperature dependences of a impurity contribution to a carrier mobility in a framework of the 2p(O)- and 3d(Mn)-scattering model elaborated for manganese perovskites. We obtained the field-dependent impurity contribution to the overall scattering of carriers that show a transition in the low-field (H) dependence of R from quadratic above T(c) to linear below consistent with an experiment. The calculated negative magnetoresistance ratio is sharply peaked at a temperature-near T(c) or below. (C) 1999 Elsevier Science B.V. All rights reserved.

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Держатели документа:
Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute of Physics, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Гавричков, Владимир Александрович

/ E. I. Shneyder, S. G. Ovchinnikov // J. Exp. Theor. Phys. - 2009. - Vol. 109, Is. 6. - P. 1017-1021, DOI 10.1134/S1063776109120139. - Cited References: 42. - This study was financed under programs 5.7 and "Quantum Physics of Condensed Matter" of the Presidium of the Russian Academy of Sciences, integration project no. 40 of the Siberian Branch and Ural Division of the Russian Academy of Sciences, and the Russian Foundation for Basic Research (project no. 09-02-00127). . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: Peculiarities of the temperature isotope effect in a BCS-type theory describing the exchange and phonon mechanisms of Cooper pairing in a system of strongly correlated electrons are considered. The electron-phonon interaction constant is determined from the fitting of the calculated value of the isotope-effect index to the observed value with the parameters of La(2 - x) Sr (x) CuO(4) obtained from ab initio calculations. The value of this constant indicates that the contribution from the traditional pairing mechanism to the superconducting state is of the same order of magnitude as the contribution from the magnetic mechanism.

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Держатели документа:
[Shneyder, E. I.
Ovchinnikov, S. G.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Shneyder, E. I.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Ovchinnikov, S. G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, 660014, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Шнейдер, Елена Игоревна; Presidium of the Russian Academy of Sciences [40]; Russian Academy of Sciences; Russian Foundation for Basic Research [09-02-00127]

/ E. P. Zeer, O. V. Falaleev, Y. N. Ivanov, E. A. Petrakovskaya // Fiz. Tverd. Tela. - 1994. - Vol. 36, Is. 8. - P. 2210-2220. - Cited References: 21 . - ISSN 0367-3294РУБ Physics, Condensed Matter


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Доп.точки доступа:
Zeer, E. P.; Зеер, Эвальд Петрович; Falaleev, O. V.; Фалалеев, Олег Владимирович; Ivanov, Y. N.; Иванов, Юрий Николаевич; Petrakovskaya, E. A.; Петраковская, Элеонора Анатольевна

/ V. K. CHERNOV [и др.] // Fiz. Tverd. Tela. - 1986. - Vol. 28, Is. 1. - P. 289-291. - Cited References: 8 . - ISSN 0367-3294РУБ Physics, Condensed Matter


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Доп.точки доступа:
CHERNOV, V. K.; GAVRICHKOV, V. A.; IVANOVA, N. B.; VEISIG, G. S.; BOYARSHINOV, Y. V.

/ V. E. SHAPIRO // Zhurnal Eksperimentalnoi Teor. Fiz. - 1984. - Vol. 87, Is. 1. - P. 241-249. - Cited References: 14 . - ISSN 0044-4510РУБ Physics, Multidisciplinary


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/ V. N. Berzhanskii, V. K. Chernov // Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 10. - P. 3179-3181. - Cited References: 8 . - ISSN 0367-3294РУБ Physics, Condensed Matter


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Доп.точки доступа:
Chernov, V. K.; Бержанский, Владимир Наумович

/ Е. М. Аверьянов // Жидк. крист. и их практич. использ. - 2018. - Т. 18, № 1. - С. 37-46 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2018.1.37. - Библиогр.: 16. - Данная работа выполнена в рамках проекта 0356-2015-0411 Комплексной программы Сибирского отделения РАН № II.2П. . - ISSN 1991-3966. - ISSN 2499-–964
   Перевод заглавия: Changes of the nematic–isotropic liquid phase transition temperature in homologous series of calamitic liquid crystals and conformational mobility of terminal molecular chains
Аннотация: Для каламитных нематиков (холестериков) различных химических классов показано, что монотонно возрастающие зависимости tс(np) температуры перехода нематик – изотропная жидкость от номера np четных (ne) или нечетных (no) гомологов хорошо аппроксимируются функциями Fp(n) = tlp + Dpexp(–λpn). Две ветви tс(no) и tс(ne) описываются одной функцией F(n) = Fs(n) + Fa(n) с гладкой частью Fs(n) = [Fe(n) + Fo(n)]/2 и альтернацией Fa(n) =(–1)n[Fe(n) – Fo(n)]/2. Выведена зависимость Fs(n) = tl + Dexp(–λn), где коэффициент λ = –ln(q) определяется отношением q = Sk/Sk–1 (k ≥ 2) параметров ориентационного порядка Sk = S1exp[–(k–1)/ζ] для метиленовых фрагментов алифатических цепей молекул в нематической фазе. Значения λ и ζ = 1/λ связаны выражением q = [4–exp(–ε)]/[4+8exp(–ε)] с эффективной разностью энергий ε = Egt/RT для гош(g±)- и транс(t)-ориентаций k–го фрагмента цепи относительно (k–1)-го. Прослежена связь величин λp, ζp, λ, ζ, q, ε и функции Fa(n) с химической структурой молекул.
For calamitic nematics (cholecterics) of various chemical classes it was shown that monotonous increasing dependences tс(np) of the nematic – isotropic liquid transition temperature on the number np of even (ne) or odd (no) homologues are well approximated by functions Fp(n) = tlp + Dpexp(–λpn). Two branches tс(no) and tс(ne) are described by one function F(n) = Fs(n) + Fa(n) with smooth part Fs(n) = [Fe(n) + Fo(n)]/2 and alternating part Fa(n) =(–1)n[Fe(n) – Fo(n)]/2. The dependence Fs(n) = tl + Dexp(–λn) was derived, in which coefficient λ = –ln(q) is determined by the ratio q = Sk/Sk–1 (k ≥ 2) of the orientational order parameters Sk = S1exp[–(k–1)/ζ] for methylene fragments of aliphatic molecular chains in the nematic phase. The values of λ and ζ = 1/λ are related by the expression q = [4–exp(–ε)]/[4+8exp(–ε)] with effective difference ε = Egt/RT between the energies of gosh(g±)- and trans(t)-orientations of k-th methylene fragment of the chain relative to (k–1)-th one. A connection between the values λp, ζp, λ, ζ, q, ε with function Fa(n) and chemical structure of molecules was observed.

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Держатели документа:
Институт физики им. Л. В. Киренского, ФИЦ КНЦ СО РАН, Академгородок, 50, 660036 Красноярск, Россия

Доп.точки доступа:
Aver'yanov, E. M.

/ S. Vereshchagin, V. Dudnikov, Y. Orlov, L. Solovyov // J. Alloys Compd. - 2021. - Vol. 860. - Ст. 158257, DOI 10.1016/j.jallcom.2020.158257. - Cited References: 35. - This work was conducted within the framework of the budget project (Project No. АААА-А17-117021310222-4) for Institute of Chemistry and Chemical Technology SB RAS using the equipment of Krasnoyarsk Regional Research Equipment Centre of SB RAS and in part was funded by Russian Foundation for Basic Research (projects 19-03-00017), RFBR and BRFBR (project 18-52-00017), Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (project 18-42-243004) . - ISSN 0925-8388
Аннотация: Processes of ordering (d-o) and disordering (o-d) of Sr2+/Dy3+ cations in a single-phase Sr0.8Dy0.2CoO3-δ was investigated by TG-DSC and XRD as a function of heating/cooling rate (β = 2,10,20,50,99 K min−1 and ~50 K/s) in 20% O2-Ar flow. According to DSC data the interconversion of disordered cubic (c) and ordered tetragonal (t) structure appears at 1276–1328 K as a first-order phase transition; the temperature and enthalpy of o-d transformation have only slight dependence on β whereas the characteristics of reversed d-o process vary greatly with cooling rate. XRD powder patterns of all samples showed no indications of a simultaneous presence of c+t domains, pointing to a single phase composition (c or t). It was suggested that the observed behavior is a consequence of two simultaneous interconnected processes of A-sublattice melting and cation/ (anion vacancy) ordering. A rarely used novel TG-DSC method based on variable gas phase composition was utilized to study properties of mobile oxygen over Sr0.8Dy0.2CoO3-δ samples. It was shown that the appearance of tetragonal phase reduces both oxygen mobility and its bonding energy, the latter decreasing substantially only at high degree of Sr2+/Dy3+ ordering.

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Держатели документа:
Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Scientific Center, Russian Academy of Sciences, Siberian Branch”, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center, Russian Academy of Sciences, Siberian Branch”, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Vereshchagin, S.; Dudnikov, V. A.; Дудников, Вячеслав Анатольевич; Orlov, Yu. S.; Орлов, Юрий Сергеевич; Solovyov, L.

/ T. A. Shalygina, M. S. Rudenko, I. V. Nemtsev [et al.] // Polymers. - 2021. - Vol. 13, Is. 22. - Ст. 3864, DOI 10.3390/polym13223864. - Cited References: 32. - This work was carried out by the team of the scientific laboratory “Intelligent Materials and Structures” within the state assignment of the Ministry of Science and Higher Education of the Russian Federation for the implementation of the project “Development of multifunctional smart materials and structures based on modified polymer composite materials capable to function in extreme conditions” (Project No. FEFE-2020-0015) . - ISSN 2073-4360
   Перевод заглавия: Влияние морфологии поверхности частиц наполнителя на формирование структуры полиуретановой матрицы в композите
Аннотация: This article presents the surface morphology effect of silicon carbide (SiC) particles on the polyurethane binder’s structure formation in a dispersed-filled composite. The difference in the morphology and surface relief of filler particles was ensured by the implementation of plasma chemical modification. As a result of this modification, the filler consisted of core-shell particles characterized by a SiC core and a carbon shell (SiC@C), as well as a carbon shell decorated with silicon nanoparticles (SiC@C/SiNP) or nanos (SiC@C/SiNW). The study of the relaxation properties of polyurethane composites has shown that the strongest limiting effect on the molecular mobility of boundary layer’s chain segments is exerted by a highly developed surface with a complex relief of SiC@C/SiNP and SiC@C/SiNW particles. An empirical method was proposed to find the polymer fractions spent on the formation of the boundary, transition and bulk layers of the polymer matrix in the composite. It was shown that the morphology of the filler particles’ surface does not affect the dependence of the boundary layer thickness on the filler’s volume fraction. However, with an increase in the degree of surface development, the boundary layer thickness decreases.

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Держатели документа:
Smart Materials and Structures Lab., Department of Aircraft, Reshetnev Siberian State University of Science and Technology, 31 KrasnoyarskyRabochy Av., Krasnoyarsk 660037, Russia
L.V. Kirensky Institute of Physics SB RAS, Institute of Chemistry and Chemical Technology, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 50 Akademgorodok, Krasnoyarsk 660036, Russia
Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, Vernadskogo Avenue 86, Moscow 119571, Russia

Доп.точки доступа:
Shalygina, T. A.; Rudenko, M. S.; Nemtsev, I. V.; Немцев, Иван Васильевич; Parfenov, V. A.; Парфенов В. А.; Voronina, S. Y.; Simonov-Emelyanov, I. D.; Borisova, P. E.

/ O. B. Romanova, S. S. Aplesnin, L. V. Udod // Phys. Solid State. - 2021. - Vol. 63, Is. 5. - P. 754-757, DOI 10.1134/S1063783421050152. - Cited References: 21. - This study was supported by the Russian Foundation for Basic Research and the Belarusian Republican Foundation for Basic Research, project no. 20-52-00005 . - ISSN 1063-7834. - ISSN 1090-6460РУБ Physics, Condensed Matter

Аннотация: The electrical properties of the Ag0.01Mn0.99S and Tm0.01Mn0.99S semiconductor compounds and the Hall effect in them have been investigated in the temperature range of 80-400 K in a magnetic field of 12 kOe. Using the I-V characteristics, the conductivity mechanism depending on the doping type and concentration has been established. Upon substitution of silver for manganese, the Mott-type conductivity has been found, while substitution of thulium causes the ohmic conductivity. The mobility and type of carriers have been determined from the Hall constant data.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Udod, L. V.; Удод, Любовь Викторовна; Романова, Оксана Борисовна; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Belarusian Republican Foundation for Basic Research [20-52-00005]