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1.


    ZINENKO, V. I.
    THERMODYNAMICS OF INTERACTING ISING AND MITSUI TYPE QUASI-ONE-DIMENSIONAL SYSTEMS / V. I. ZINENKO, N. G. TOMSHINA // Fiz. Tverd. Tela. - 1982. - Vol. 24, Is. 2. - P. 480-485. - Cited References: 20 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


WOS
Доп.точки доступа:
TOMSHINA, N. G.
}
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2.


    Valkov, V. V.
    CONTRIBUTION OF MAGNON-MAGNON INTERACTION TO THERMODYNAMICS OF ANISOTROPIC FERROMAGNETS / V. V. VALKOV, S. G. OVCHINNIKOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1983. - Vol. 85, Is. 5. - P. 1666-1674. - Cited References: 19 . - ISSN 0044-4510
РУБ Physics, Multidisciplinary


WOS
Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Val'kov, V. V.
}
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3.


    VAKS, V. G.
    THERMODYNAMICS OF 6-VERTEX MODELS IN DIRECT AND STAGGERED ELECTRIC-FIELDS IN THE CLUSTER APPROXIMATION / V. G. VAKS, V. I. ZINENKO // JOURNAL OF PHYSICS C-SOLID STATE PHYSICS. - 1986. - Vol. 19, Is. 17. - P. 3083-3104, DOI 10.1088/0022-3719/19/17/007. - Cited References: 21 . - ISSN 0022-3719
РУБ Physics, Condensed Matter


WOS,
Scopus
Держатели документа:
LV KIRENSKII PHYS INST,KRASNOYARSK 660036,USSR
ИФ СО РАН
I v Kurchatov Institute of Atomic Energy, Moscow, Russian Federation
L v Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
Доп.точки доступа:
ZINENKO, V. I.; Зиненко, Виктор Иванович
}
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4.


    Kuzmin, E. V.
    Thermodynamics of quasi-2-dimensional heisenberg-ferromagnet with single-ion-anisotropy / E. V. Kuzmin, G. A. Petrakovskii // Fiz. Tverd. Tela. - 1986. - Vol. 28, Is. 11. - P. 3551-3553. - Cited References: 4 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


WOS
Доп.точки доступа:
Petrakovskii, G. A.; Петраковский, Герман Антонович; Кузьмин, Евгений Всеволодович
}
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5.


    Sadreev, A. F.
    Thermodynamics of soliton configurations in a two-dimensional model for displacive phase-transition / A. F. Sadreev // Z. Phys. B-Condens. Mat. - 1988. - Vol. 73, Is. 1. - P. 115-124, DOI 10.1007/BF01312162. - Cited References: 32 . - ISSN 0722-3277
РУБ Physics, Condensed Matter


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Scopus
Держатели документа:
Institute of Physics, Krasnoyarsk, SU-660036, Russia
Доп.точки доступа:
Садреев, Алмаз Фаттахович
}
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6.


    ZAMKOVA, N. G.
    THERMODYNAMICS OF THE 2-DIMENSIONAL SUPEREXCHANGE MODEL OF MITSUI / N. G. ZAMKOVA, V. I. ZINENKO // Theor. Math. Phys. - 1989. - Vol. 79, Is. 2. - P. 530-536, DOI 10.1007/BF01016535. - Cited References: 14 . - ISSN 0040-5779
РУБ Physics, Multidisciplinary + Physics, Mathematical


WOS
Доп.точки доступа:
ZINENKO, V. I.; Зиненко, Виктор Иванович; Замкова, Наталья Геннадьевна
}
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7.


    Flerov, I. N.
    Effect of hydrostatic pressure on phase transitions in perovskite-like ferroelastics / I. N. Flerov, M. V. Gorev, K. S. Aleksandrov // Ferroelectrics : Proceedings of the 1994 5th Russian-Japanese Symposium on Ferroelectricity. Part 2 (of 2). - 1995. - Vol. 169, Is. 1. - P. 199-205, DOI 10.1080/00150199508217330 . - ISSN 0015-0193
Кл.слова (ненормированные):
Crystals -- Hydrostatic pressure -- Mathematical models -- Perovskite -- Phase transitions -- Pressure effects -- Thermodynamics -- Perovskite like ferroelastics -- Ferroelectric materials
Аннотация: The analysis of hydrostatic pressure influence on ferroelastic phase transitions in three- and two-dimensional perovskite-like crystals is carried out. The nonlinear effects and the change of the dT0/dp sign are discussed on the ground of the thermodynamic theory. Simple model of rigid spheres is used to connect the T0 shift under pressure with the bonds stresses.

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Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Флёров, Игорь Николаевич; Russian-Japanese symposium on ferroelectricity(1994 ; Aug. ; 22-27 ; Moscow)
}
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8.


   
    Phase transitions in elpasolites (ordered perovskites) / I. N. Flerov [et al.] // Materials Science and Engineering R: Reports. - 1998. - Vol. 24, Is. 3. - P. 81-151. - Cited References: 174 . - ISSN 0927-796X
РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
ELASTIC NEUTRON-DIFFRACTION
   MII = CO
   RAMAN-SCATTERING
   THERMODYNAMIC PROPERTIES
   CRYSTAL-STRUCTURE
   SINGLE-CRYSTALS
   RB2KMIIIF6 ELPASOLITES
   CUBIC PEROVSKITES
   TEMPERATURE FORM
   HIGH-RESOLUTION
Кл.слова (ненормированные):
Crystal atomic structure -- Crystal growth -- Crystal lattices -- Crystallization -- Crystallography -- Ferroelectricity -- Hydrostatic pressure -- Order disorder transitions -- Single crystals -- Thermodynamics -- Elpasolites -- Landau theory -- Perovskite
Аннотация: Many compounds with general chemical formula A2BB?X6 and with tolerance factor value t < 1 crystallize in the elpasolite (ordered perovskite) structure. Different preparative methods have been considered. For example, the Bridgman technique is the most suitable method of growing single crystals of halogenated elpasolites with monoatomic cations. Group-theory and symmetry analyses have allowed us to build a scheme of possible structural distortions connected with octahedral rotations and displacements of ions. Experimental observations have proven that ferroelastic phase transitions occurring most frequently in elpasolites are due to small octahedra tilts. Quantitative analysis allows the possibility of describing these transitions in the framework of the thermodynamic Landau theory. Hydrostatic pressure and the substitution of atoms in different crystallographic sites allow to change significantly the succession and the temperature of phase transitions. The hypothesis of bond stresses is able to predict the possible occurrence of a phase transition for a particular elpasolite and/or the role of the octahedra rotations in the transformation. The mechanism of phase transitions in elpasolites and related compounds has also been considered. One can assume that a displacive mechanism associated with a strong anharmonicity plays a large role in phase transitions occurring in compounds with monoatomic cations. On the other hand, for instance, in cryolites with ammonium cations, the transitions originate from an order-disorder phenomenon. В© 1998 Elsevier Science S.A. All rights reserved.

Scopus
Держатели документа:
L.V. Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Inst. Chim. Matiere Cond. B., Universite Bordeaux I, 33608, Pessac Cedex, France
Lab. de Phys.-Chim. Molec., Universite Bordeaux I, 33405, Talence Cedex, France

Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Tressaud, A.; Grannec, J.; Couzi, M.
}
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9.


    Fedorov, A. S.
    Density and thermodynamics of hydrogen adsorbed inside narrow carbon nanotubes / A. S. Fedorov, S. G. Ovchinnikov ; Translated by A. Kazantsev // Phys. Solid State. - 2004. - Vol. 46, Is. 3. - P. 584-589, DOI 10.1134/1.1687883. - Cited References: 21. - This study was supported by the federal program “Integration,” project no. Б0017 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
MOLECULAR-DYNAMICS
   TRANSITIONS
   TRANSPORT
   ENERGY
   TUBES
Аннотация: A model is proposed for calculating the thermodynamic functions and the equilibrium density of a one-dimensional chain of molecules (atoms) adsorbed inside a narrow nanotube. The model considers both the interaction between introduced atoms (molecules) and their interaction with the nanotube walls. The quantum-mechanical effects resulting in discrete energy levels of a particle and in its smeared position between neighbors are taken into account. In calculating the free energy at a nonzero temperature, the phonon contribution and the particle transitions to excited levels are considered. The model is applied to calculate the thermodynamic parameters of adsorbed hydrogen molecules inside extremely narrow single-wall carbon nanotubes of the (3,3) and (6,0) type. It is shown that external pressure gives rise to a sequence of first-order phase transitions, which change the density of adsorbed hydrogen molecules. (C) 2004 MAIK "Nauka / Interperiodica".

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Переводная версия Федоров, Александр Семенович. Плотность и термодинамика водорода, адсорбированного внутри узких углеродных нанотрубок [Текст] / А. С. Федоров, С. Г. Овчинников // Физ. тверд. тела. - 2004. - Т. 46 Вып. 3. - С. 563-568

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Fac New Mat & Technol, UNESCO, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
UNESCO Fac. New Mat./Technologies, Krasnoyarsk Stt. Tech. University, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Kazantsev, A. \пер.\; Федоров, Александр Семенович
}
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10.


    Gekht, R. S.
    A quantum spin liquid in a two-layer triangular antiferromagnet / R. S. Gekht, I. N. Bondarenko // J. Exp. Theor. Phys. - 2005. - Vol. 101, Is. 5. - P. 868-880, DOI 10.1134/1.2149066. - Cited References: 43 . - ISSN 1063-7761
РУБ Physics, Multidisciplinary
Рубрики:
ONE-DIMENSIONAL ANTIFERROMAGNETS
   DIMER GROUND-STATE
   MEAN-FIELD THEORY
   HEISENBERG-ANTIFERROMAGNET
   SYSTEM SRCU2(BO3)(2)
   PHASE-TRANSITION
   GAP
   FLUCTUATIONS
   EXCITATIONS
   LATTICE
Кл.слова (ненормированные):
Antiferromagnetic materials -- Magnetic fields -- Magnetization -- Phase diagrams -- Spectrum analysis -- Thermodynamics -- Analogous systems -- Square lattices -- Thermodynamic quantities -- Two-layer triangular antiferromagnets -- Quantum theory
Аннотация: The possibility of implementing a quantum-spin-liquid-type state in a two-layer triangular spin-1/2 antiferromagnet at T = 0 is investigated. The ratio of intra- to interlayer exchange constants (j) is found under which a transition from the classical state with 120 degrees triangular order to a quantum state with zero magnetization per site occurs; in this case, the spins of adjacent layers form singlets that are separated from triplet excitations by an energy gap. Compared with an analogous system with the square lattice, the range of j in which the classical ordered state is realized turns out to be an order of magnitude smaller due to the effects of frustration; in this case, the behavior of thermodynamic quantities is analogous, on the whole, to that in two-layer square lattices; a difference manifests itself in the behavior of the gap in the spectrum of quasiparticles in an external magnetic field h. For small fields h, a j-h phase diagram is constructed that determines the domains in which the 120 degrees and the singlet phases exist. It is established that, in the neighborhood of the second-order phase transition, the contribution, to the thermodynamic quantities, of longitudinal spin fluctuations, which are disregarded in the spin-wave description, is comparable to the contribution of transverse fluctuations. (c) 2005 Pleiades Publishing, Inc.

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

Доп.точки доступа:
Bondarenko, I. N.
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