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Abramova, G. M.
Metal-insulator transition, magnetoresistance, and magnetic properties of 3d-sulfides (Review) / G. M. Abramova, G. A. Petrakovskii // Low Temp. Phys. - 2006. - Vol. 32, Is. 8-9. - P. 725-734 ; Физика низких температур, DOI 10.1063/1.2219495. - Cited References: 74 . - ISSN 1063-777X

РУБ Physics, Applied
Рубрики:
GIANT-MAGNETORESISTANCE
   PHASE-TRANSITION
   ALPHA-MNS
   COLOSSAL MAGNETORESISTANCE
   SINGLE-CRYSTALS
   FES-MNS
   SULFIDES
   FERROMAGNETISM
   SEMICONDUCTORS
   TEMPERATURE
Аннотация: The results of a study of the transport and magnetic properties of some sulfides of 3d elements are reported. The concentration transitions with a change of conductivity type and a change of magnetic order are considered, and the features of the colossal magnetoresistance in FexMn1-xS and CuVxCr1-xS2 solid solutions are discussed.

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

Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Абрамова, Галина Михайловна

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    Aleksandrov, K. S.
    Phase-transitions and distortions of the structure in the family of crystals related to alpha-k2so / K. S. Aleksandrov // Kristallografiya. - 1993. - Vol. 38, Is. 1. - P. 128-139 ; Crystallogr. Rep. - Cited References: 38 . - ISSN 0023-4761
Рубрики:
X-RAY
   EXPECTED STRUCTURES
   A2BX4 COMPOUNDS
   TEMPERATURE
   (NH4)2BEF4
   CHEMISTRY
   DISORDER
   SYMMETRY

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Публикация на русском языке Александров, Кирилл Сергеевич. Фазовые переходы и искажения структуры в семействе кристаллов родственных α – K2SO4. [Текст] / К. С. Александров // Кристаллография. - 1993. - Т. 38 Вып. 1. - С. 128-139

Доп.точки доступа:
Александров, Кирилл Сергеевич

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Aplesnin, S. S.
Dimerization of antiferromagnetic chain with 4-spin interaction / S. S. Aplesnin // Fiz. Tverd. Tela. - 1996. - Vol. 38, Is. 6. - P. 1868-1877. - Cited References: 30 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
SPIN-1/2 HEISENBERG-ANTIFERROMAGNET
   COMPETING INTERACTIONS
   MONTE-CARLO
   THERMODYNAMIC PROPERTIES
   SYSTEMS
   CUGEO3
   TEMPERATURE
   NEUTRON
   STATE
   MODEL

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Aver'yanov, E. M.
Mean polarizability of molecules and anisotropy of the Lorentz tensor upon a nematic-smectic a phase transition: Their behavior in a homologous series / E.M. Aver'yanov // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 5. - P. 720-728, DOI 10.1134/S0036024412050044. - Cited References: 37 . - ISSN 0036-0244

РУБ Chemistry, Physical + Anisotropy + Molecules + Phase transitions + Tensors
Рубрики:
CHOLESTERIC LIQUID-CRYSTALS
   REFRACTIVE-INDEX DATA
   A PHASE
   MESOMORPHIC PROPERTIES
   ORIENTATIONAL ORDER
   OPTICAL ANISOTROPY
   LOCAL-FIELD
   POLYMORPHISM
   TEMPERATURE
   A-monotone
   Alkyl chain
   Experimental values
   Homologous series
   Homologues
   Limiting values
   Lorentz
   Mesophases
   Molecular core
   Molecular polarizabilities
   Nematic
   Orientational order parameters
   Polarizabilities
   Polarizability density
   Quadratic dependence
   A-monotone
   Smectic
   Smectic phase
   Smectic phasis
   Smectic-A phasis
Кл.слова (ненормированные):
molecular polarizability -- anisotropy -- phase transition -- nematic -- smectic -- homologues
Аннотация: Experimental values of the mean polarizability of molecules, (gamma) over bar, and components of the Lorentz tensor, L-j, in the nematic and smectic A phases are obtained for a homologous series of n-alkyl-p-(4-ethoxybenzylideneamino)-alpha-methylcinnamates. Dependences of the (gamma) over bar and L-j values on the mesophase temperature, the orientational order parameter S of molecules, and the number n in the homologous series are revealed. The quadratic dependence of (gamma) over bar (S) in the nematic and smectic phases is established that is invariant with respect to the nematic-smectic A transition. Polarizability densities of the molecular core and the alkyl chain are found from the monotone decreasing dependence (gamma) over bar (n)/v (where v is volume per one molecule) in the smectic phase. The presence (or absence) of the odd-even alternation of L-j(n) in the nematic (smectic) phase is shown. A monotone decrease in the Lorentz tensor anisotropy L with an increase in n is revealed in the smectic phase, and limiting values L-j(n -> infinity) are determined.

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Публикация на русском языке Аверьянов, Евгений Михайлович. Изменение средней поляризуемости молекул и анизотропии тензора Лорентца при фазовом переходе нематик – смектик А и в гомологическом ряду [Текст] / Е.М. Аверьянов // Журн. физ. химии : Наука, 2012. - Т. 86 № 5. - С. 810-818

Доп.точки доступа:
Аверьянов, Евгений Михайлович
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Balaev, D. A.
Tunnel Conductivity and Tunnel Magnetoresistance of the Fe-SiO Films: Interplay of the Magnetotransport and Magnetic Properties / D. A. Balaev, A. D. Balaev // Phys. Solid State. - 2019. - Vol. 61, Is. 7. - P. 1203-1210, DOI 10.1134/S1063783419070047. - Cited References: 48 . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
GIANT MAGNETORESISTANCE
   GRANULAR FILMS
   TEMPERATURE
   TRANSPORT
Аннотация: The electrical properties of a system of nanogranular amorphous Fe–SiO films with a SiO concentration between 0 and 92 vol % have been investigated. The samples with a low SiO content are characterized by the metal-type conductivity. With an increase in the dielectric content x in the films, the concentration transition from the metal to tunneling conductivity occurs at x ≈ 0.6. At the same concentration, the ferromagnet–superparamagnet transition is observed, which was previously investigated by the magnetic method. The temperature dependences of the electrical resistivity ρ(T) for the compositions corresponding to the dielectric region obey the law ρ(T) ~ exp(2(C/kT)1/2), which is typical of the tunneling conductivity. The estimation of the metal grain sizes from the tunneling activation energy C has shown good agreement with the sizes obtained previously by analyzing the magnetic properties. In the dielectric region of the compositions, the giant magnetoresistive effect attaining 25% at low temperatures has been obtained.

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Публикация на русском языке

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

Доп.точки доступа:
Balaev, A. D.; Балаев, Александр Дмитриевич; Балаев, Дмитрий Александрович
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    Blue-shift of Eu2+ emission in (Ba,Sr)3Lu(PO4)3:Eu2+ eulytite solid-solution phosphors resulting from release of neighbouring-cation-induced stress / Z. Y. Wang [et al.] // Dalton Trans. - 2014. - Vol. 43, Is. 44. - P. 16800-16804, DOI 10.1039/c4dt02319f. - Cited References: 16. - The present work was supported by the National Natural Science Foundations of China (grant no. 51002146, no. 51272242), Natural Science Foundations of Beijing (2132050), the Program for New Century Excellent Talents in the University of the Ministry of Education of China (NCET-12-0950), Beijing Nova Program (Z131103000413047), Beijing Youth Excellent Talent Program (YETP0635) and the Funds of the State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University (KF201306). V.V.A. is partly supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 1477-9226. - ISSN 1477-9234
   Перевод заглавия: Синее смещение излучения Eu2+ в твердых растворах (Ba,Sr)3Lu(PO4)3:Eu2 со структурой эулита, вызванное снятием напряжения, индуцированного соседними катионами

РУБ Chemistry, Inorganic & Nuclear
Рубрики:
TUNABLE COLOR TONE
   EXCITED WHITE LEDS
   CRYSTAL-STRUCTURE
   TEMPERATURE
   IONS
Аннотация: A series of iso-structural eulytite-type (Ba,Sr)(3)Lu(PO4)(3):Eu2+ solid-solution phosphors with different Sr/Ba ratios were synthesized by a solid-state reaction. Crystal structures of (Ba,Sr)(3)Lu(PO4)(3):Eu2+ were resolved by the Rietveld method, which shows an eulytite-type cubic Bi-4(SiO4)(3) structure with cations disordered in a single C-3 site while the oxygen atoms were distributed over two partially occupied sites. The emission peaks of Ba(3-x)SrxLu(PO4)(3):Eu2+ (0

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Держатели документа:
China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia

Доп.точки доступа:
Wang, Z. Y.; Xia, Zhiguo; Molokeev, M. S.; Молокеев, Максим Сергеевич; Atuchin, V. V.; Атучин, Виктор Валерьевич; Liu, Q. L.
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Bobrov, P. P.
Dielectric permittivity spectra of oil-water-saturated sandy-clayey rocks of different mineralogical compositions and relaxation properties of water in these rocks / P. P. Bobrov, V. L. Mironov, A. V. Repin // Russ. Geol. Geophys. - 2015. - Vol. 56, Is. 7. - P. 1065-1073, DOI 10.1016/j.rgg.2015.06.007. - Cited References: 21. - This work was supported by RFBR (grant nos. 12-05-00502a and 14-05-00151a). . - ISSN 1068-7971

РУБ Geosciences, Multidisciplinary
Рубрики:
MOIST SOILS
   FREQUENCY
   MODEL
   TEMPERATURE
   SALINITY
   RANGE
   GHZ
Кл.слова (ненормированные):
Conductivity -- Dielectric permittivity -- Multifrequency dielectric relaxation -- Oil-bearing deposits -- Sandy-clayey rocks
Аннотация: Experimental measurements of the dielectric permittivity and equivalent conductivity of sandy-clayey samples (a mixture of river sand with bentonite or kaolin) saturated with salt-solution-diesel-fuel emulsions were performed in the frequency range from 10 kHz to 1 GHz at temperatures of 25-65 °C. It is shown that when the content of the salt solution in the saturating fluid does not exceed 10%, the dielectric permittivity in the frequency range from 1 MHz to 1 GHz depends little on the mineral composition of the sample and on the concentration of the saturating solution. When the portion of water is 33.3% or higher, increasing the concentration of the salt solution leads to an increase in the equivalent conductivity and the real part of the complex dielectric permittivity. Using the refractive model of the complex dielectric permittivity, we have estimated the dielectric properties of bound water, which depend on temperature and the type of clay (bentonite or kaolin) in the sand-clay mixture but are independent of the water saturation and the amount of clay in the sample.

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Публикация на русском языке Бобров, Павел Петрович. Спектры диэлектрической проницаемости нефтеводонасыщенных песчано-глинистых пород различного минералогического состава и релаксационные свойства воды в этих породах [Текст] / П. П. Бобров, В. Л. Миронов, А. В. Репин // Геол. и геофиз. - Новосибирск : Изд-во СО РАН, 2015. - Т. 56 № 7. - С. 1359-1368

Держатели документа:
Omsk State Pedagogical University, Naberezhnaya im. Tukhachevskogo 14, Omsk, Russian Federation
L.V. Kirenskii Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, str. 38, Krasnoyarsk, Russian Federation
M.F. Reshetnev Siberian State Aerospace University, pr. im. Gazety Krasnoyarskii Rabochii 31, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mironov, V. L.; Миронов, Валерий Леонидович; Repin, A. V.; RFBR [12-05-00502a, 14-05-00151a]
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Calculation of the energy of binding of titanium and scandium complexes to the surface of carbon nanotubes / A. A. Kuzubov [et al.] // Russ. J. Phys. Chem. B. - 2009. - Vol. 3, Is. 4. - P. 679-683, DOI 10.1134/S1990793109040289. - Cited References: 27. - This work was supported by the analytical departmental program "Development of Higher Education Potential (2009-2100)" (grant 2.1.1/2584) and by the Russian Foundation for Basic Research, project no. 09-02-00324-a. . - ISSN 1990-7931

РУБ Physics, Atomic, Molecular & Chemical
Рубрики:
MOLECULAR-HYDROGEN COMPLEXES
   STORAGE
   TEMPERATURE
   TRANSITION
   DYNAMICS
   METALS
Аннотация: Complexes of zigzag-type carbon nanotubes (CNTs) with transition metal atoms, scandium and titanium, were studied. It was demonstrated that the energy of binding of both atoms with a carbon surface decreases whereas the rate of diffusion along the surface increases with increasing nanotube diameter. The rate constant of migration of scandium atoms over a CNT surface are several orders of magnitude higher than that for titanium atoms, because the CNT surface-Sc atom binding energy is substantially lower.

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Держатели документа:
Institute of Natural and Humanitarian Sciences, Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian State Technological University, Krasnoyarsk 660049, Russian Federation

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Krasnov, P. O.; Краснов, Павел Олегович; Kozhevnikov, T. A.; Popov, M. A.; Analytical departmental program "Development of Higher Education Potential" [2.1.1/2584]; Russian Foundation for Basic Research [09-02-00324-a]
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Caloric effects and phase transitions in ferromagnetic-ferroelectric composites xLa(0.7)Pb(0.3)MnO(3)-(1-x)PbTiO3 / E. A. Mikhaleva [et al.] // J. Mater. Res. - 2013. - Vol. 28, Is. 24. - P. 3322-3331, DOI 10.1557/jmr.2013.360. - Cited References: 24. - This study was supported in parts by The Russian Foundation for Basic Research (Grant No. 12-02-31253-mol-a), Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" (N 8379), and Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools (Grant NO. NSh-4828.2012.2). Dr. Maxim S. Molokeev is acknowledged for the x-ray characterization of the samples. . - ISSN 0884-2914. - ISSN 2044-5326

РУБ Materials Science
Рубрики:
PRESSURE
TEMPERATURE
Аннотация: Ceramic volumetric composites xLa(0.7)Pb(0.3)MnO(3)-(1-x)PbTiO3 (x = 0.18 and 0.85) were prepared. X-ray investigations have shown that rather low sintering temperature (800 degrees C) has allowed us to avoid the reaction and interdiffusion between two initial phases. Heat capacity, thermal expansion, and intensive magnetocaloric effect were measured in a wide temperature range. The sample composition has a low influence on temperatures of the ferromagnetic and ferroelectric phase transitions in composites. Electro- and barocaloric effects were determined by analysis in the framework of thermodynamic theory, electric equation of state, Maxwell relationships, and entropy-temperature-pressure phase diagram. Multicaloric efficiency of composites is discussed and compared with that of initial La0.7Pb0.3MnO3 and PbTiO3 compounds. Variation of a relationship between components can significantly increase both barocaloric and magnetocaloric efficiency of compositional material due to the mechanical stress appearing between grains of different ferroic phases under magnetic field.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660079, Russia

Доп.точки доступа:
Mikhaleva, E. A.; Михалева, Екатерина Андреевна; Flerov, I. N.; Флёров, Игорь Николаевич; Kartashev, A. V.; Карташев, Андрей Васильевич; Gorev, M. V.; Горев, Михаил Васильевич; Cherepakhin, A. V.; Черепахин, Александр Владимирович; Sablina, K. A.; Саблина, Клара Александровна; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Volkov, N. V.; Волков, Никита Валентинович; Shabanov, A. V.; Шабанов, Александр Васильевич; Russian Foundation for Basic Research [12-02-31253-mol-a]; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" [N 8379]; Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools [NSh-4828.2012.2]
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10.

Characterization of LSMO/C60 spinterface by first-principle calculations / E. A. Kovaleva [et al.] // Org. Electron.: Phys. Mater. Appl. - 2016. - Vol. 37. - P. 55-60, DOI 10.1016/j.orgel.2016.06.021. - Cited References: 40. - This work was supported by the Russian Scientific Fund (Project No. 14-13-00139). The authors would like to thank Institute of Computational Modeling of SB RAS, Krasnoyarsk; Joint Supercomputer Center of RAS, Moscow; Center of Equipment for Joint Use of Siberian Federal University, Krasnoyarsk; ICC of Novosibirsk State University and Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk for providing the access to their supercomputers. . - ISSN 1566-1199

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
INITIO MOLECULAR-DYNAMICS
   TOTAL-ENERGY CALCULATIONS
   AUGMENTED-WAVE METHOD
   ORGANIC SPIN-VALVES
   BASIS-SET
   SEMICONDUCTORS
   INJECTION
   SPINTRONICS
   TEMPERATURE
   ALGORITHM
Кл.слова (ненормированные):
C60 -- LSMO -- Spinterface -- DFT -- Magnetic ordering
Аннотация: Spinterface between fullerene C60 and La0 7Sr0 3MnO3 (LSMO) was studied by means of density functional theory. Co-existence of many different configurations was shown, and probabilities of their appearance were estimated. Dependence of composite properties on configuration and temperature was also investigated. Key role of transition metal atoms in both binding between composite compartments and magnetic ordering in C60 molecule was discussed. The latter was suggested to be responsible for spin-polarized charge transport while overall magnetic moment of fullerene molecule is relatively small. © 2016 Elsevier B.V.

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
L.V. Kirensky Institue of Physics, 50 Akademgorodok, Krasnoyarsk, Russian Federation
Kyungpook National University, 80 Daekharo Bukgu, Daegu, South Korea
Siberian State Technological University, 82 Mira pr., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kovaleva, E. A.; Kuzubov, A. A.; Кузубов, Александр Александрович; Avramov, P. V.; Аврамов, Павел Вениаминович; Kuklin, A. V.; Куклин, Артем Валентинович; Mikhaleva, N. S.; Krasnov, P. O.; Краснов, Павел Олегович
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