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1.
Sidorov, K. A.
Exact solution for the
thermodynamics
of the one-dimensional Hubbard model with infinite repulsion in a magnetic field / K. A. Sidorov, N. V. Tikhonov, S. G. Ovchinnikov> // Theor. Math. Phys. - 2014. -
Vol. 180
,
Is. 1
. - P. 835-849,
DOI
10.1007/s11232-014-0183-9. - Cited References: 8. - This work was supported in part by the Russian Federation Ministry of Education and Science (State Order SFU 2014 GF-2), the Presidium of the Russian Academy of Sciences (Program No. 20.7), the Program for Supporting Leading Scientific Schools (Grant No. NSh-1044.2012.2), the Russian Foundation for Basic Research (Grant No. 10-02-00251), and the Siberian Federal University (Internal Grant No. NF-11). . - ISSN 0040-5779. - ISSN 1573-9333
РУБ
Physics, Multidisciplinary + Physics, Mathematical
Рубрики:
FINITE TEMPERATURES
Кл.слова (ненормированные):
Hubbard model
--
magnetic field
--
infinite repulsion
--
thermodynamics
--
exact solution
Аннотация:
We demonstrate that in the limit of infinite repulsion in a magnetic field, the canonical partition function of the one-dimensional Hubbard model in the nearest-neighbor approximation factors into the product of partition functions of holons and spinons, which can be calculated exactly. We thus obtain exact numerical dependences of the free energy, entropy, internal energy, specific heat, chemical potential, and magnetic susceptibility on the hole concentration, temperature, and magnetic field induction.
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Публикация на русском языке
Сидоров, Кирилл Александрович. Точный расчет термодинамики одномерной модели Хаббарда с бесконечным отталкиванием в магнитном поле [Текст] / К. А. Сидоров, Н. В. Тихонов, С. Г. Овчинников // Теор. и мат. физика : Наука, 2014. - Т. 180 № 1. - С. 94-111
Держатели документа:
RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk, Russia
Siberian Fed Univ, Krasnoyarsk, Russia
Доп.точки доступа:
Tikhonov, N. V.; Тихонов Н.В.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Сидоров, Кирилл Александрович; Russian Federation Ministry of Education and Science [SFU 2014 GF-2]; Presidium of the Russian Academy of Sciences [20.7]; Program for Supporting Leading Scientific Schools [NSh-1044.2012.2]; Russian Foundation [10-02-00251]; Siberian Federal University [NF-11]
}
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2.
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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3.
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.
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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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4.
Mironov, V. L.
Dielectric model of a mineral arctic soil thawed and frozen at 0.05-15 GHz / V. L. Mironov, I. P. Molostov, V. V. Scherbinin> //
Int. Sib. Conf. on Control and Communicat. (SIBCON 2015) : Proceedings : IEEE-Institute Electrical and Electronics Engineers, 2015. - P. 1-7,
DOI
10.1109/SIBCON.2015.7147146
Кл.слова (ненормированные):
Arctic regions
--
dielectric model
--
dielectric relaxation
--
remote sensing
--
soil
--
temperature dependence
--
Dielectric relaxation
--
Moisture
--
Remote sensing
--
Soil moisture
--
Soils
--
Temperature
--
Temperature distribution
--
Thawing
--
Thermodynamics
--
Active and passive remote sensing
--
Arctic regions
--
Complex dielectric constant
--
Dielectric modeling
--
Soil dielectric constant
--
Spectroscopic parameters
--
Temperature dependence
--
Thermodynamics
parameters
--
Soil surveys
Аннотация:
The dielectric model for an arctic soil both thawed and frozen has been developed. The model is based on the soil dielectric measurements carried out in the ranges of gravimetric moisture from 0.01 to 0.43 g/g, dry soil density from 1.25 to 1.83 g/cm3, and temperature from 25 to -30°C (cooling run), in the frequency range 0.05-15 GHz. To fit the results of measurements of the soil complex dielectric constant as a function of soil moisture and wave frequency, the refractive mixing dielectric model in conjunction with the Debye multi-relaxation equations were applied. As a result, the spectroscopic parameters of dielectric relaxations for the bound, transient bound, and unbound soil water components were derived, being further complimented with the
thermodynamics
parameters to ensure a complete set of parameters of the temperature dependent multi-relaxation spectroscopic dielectric model for moist soils proposed. To calculate complex dielectric constant of soil, the following input variables have to be assigned: 1) density of dry soil, 2) gravimetric moisture, 3) wave frequency, and 4) temperature. The error of the dielectric model was evaluated in terms of RMSE, yielding the values RMSE of 0.53 and 0.43 for the soil dielectric constant and loss factor, respectively. These values appeared to be in the order of the dielectric measurement error itself. The dielectric model suggested can be applied in the active and passive remote sensing techniques in microwave to develop algorithms for retrieving soil moisture and freeze/thaw state of the topsoil in the Arctic regions. © 2015 IEEE.
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Доп.точки доступа:
Molostov, I. P.; Scherbinin, V. V.; Щербинин, Всеволод Владиславович; Миронов, Валерий Леонидович; International Siberian Conference on Control and Communications(11 ; 2015 ; May 21-23 ; Omsk)
}
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5.
Ovchinnikov, S. G.
Anomalous
thermodynamics
of the doped Mott-Hubbard insulators / S. G. Ovchinnikov, K. A. Sidorov, E. I. Shneyder> // Phys. Solid State. - 2011. -
Vol. 53
,
Is. 2
. - P. 299-302,
DOI
10.1134/S1063783411020247. - Cited References: 6. - This study was supported by the Russian Foundation for Basic Research (project no. 09-02-00127), the Branch of the Physical Sciences of the Russian Academy of Sciences (program nos. 2 and 3), grant no. MK-1683.2010.2, and by the Federal Target Program "Personnel" (project NK-589 P). . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
T-J MODEL
SPECTRUM
Аннотация:
The concentration dependence of the entropy of doped Mott-Hubbard insulators has been considered within the t-J model. It has been shown that a change in the type and statistics of charge carriers as compared to the Fermi gas leads to a radical change in the entropy s, in particular, to the giant growth of the entropy upon doping. The quantity a,s/a,x a parts per thousand k (B) is approximately consistent with the experimental data for HTSC cuprates in the pseudogap phase.
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Публикация на русском языке
Овчинников, Сергей Геннадьевич. Аномальная термодинамика допированных диэлектриков Мотта-Хаббарда [Текст] / С. Г. Овчинников, К. А. Сидоров, Е. И. Шнейдер // Физ. тверд. тела. - 2011. - Т. 53 Вып. 2. - С. 280-283
Держатели документа:
[Ovchinnikov, S. G.
Sidorov, K. A.
Shneyder, E. I.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Ovchinnikov, S. G.
Shneyder, E. I.] Reshetnev 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
Reshetnev Siberian State Aerospace University, pr. im. Gazety Krasnoyarskii Rabochii 31, Krasnoyarsk 660014, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660041, Russian Federation
Доп.точки доступа:
Sidorov, K. A.; Shneyder, E. I.; Шнейдер, Елена Игоревна; Овчинников, Сергей Геннадьевич
}
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6.
Fedorov, A. S.
Ab initio study of hydrogen chemical adsorption on platinum surface/carbon nanotube join system / A. S. Fedorov, P. B. Sorokin, A. A. Kuzubov> // Phys. Status Solidi B. - 2008. -
Vol. 245
,
Is. 8
. - P. 1546-1551,
DOI
10.1002/pssb.200844155. - Cited References: 31 . - ISSN 0370-1972
РУБ
Physics, Condensed Matter
Рубрики:
WALLED CARBON NANOTUBES
MOLECULAR-DYNAMICS
ROOM-TEMPERATURE
STORAGE
ENERGY
THERMODYNAMICS
GRAPHITE
DENSITY
POINTS
Аннотация:
The process of hydrogen chemical adsorption on platinum cluster/single wall carbon nanotube (CNT) join surfaces is modelled at various temperatures and pressures. For that, the adsorption energy of hydrogen atoms on surfaces of both platinum (111) plate and CNT (5,5) or (8,8) types is calculated by density functional theory with the PBE approximation. At various temperatures the hydrogen atom hopping rate on both platinum and CNT surfaces is calculated by the transition state theory. Furthermore the hydrogen hopping rate from the platinum surface to the attached nanotube is obtained by calculation of the total energy profile. It is proved that hydrogen atoms can migrate easily at the platinum surface at all temperatures, but at the CNT surface they can migrate beginning at 400-500 K. By calculation of chemical potentials of hydrogen in gas or on CNT or platinum cluster surfaces the equilibrium density of adsorbed hydrogen was calculated at different temperatures and pressures. It is established that for all temperatures in the range 300-900 K and for all pressures less than 500 bar, the hydrogen is dissociated and chemically adsorbed on the platinum surface very effectively, but surface site occupation by hydrogen on attached CNT surface is rather small. But if CNT vacancies are present in the tube structure and the temperature is lower then 450 K, hydrogen atoms can be adsorbed effectively enough on these vacancies. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Держатели документа:
[Fedorov, Alexander S.
Sorokin, Pavel B.
Kuzubov, Alexander A.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Fedorov, Alexander S.] Moscow Railroad Transport Engn Inst, Krasnoyarsk 660028, Russia
[Sorokin, Pavel B.
Kuzubov, Alexander A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Railroad Transport Institute, 660028 Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodniy av, 660041 Krasnoyarsk, Russian Federation
Доп.точки доступа:
Sorokin, P. B.; Kuzubov, A. A.; Кузубов, Александр Александрович; Федоров, Александр Семенович
}
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7.
Magnetization and specific
heat of DyFe3(BO3)(4) single crystal / E. A. Popova [et al.]> // Eur. Phys. J. B. - 2008. -
Vol. 62
,
Is. 2
. - P. 123-128,
DOI
10.1140/epjb/e2008-00146-5. - Cited References: 18 . - ISSN 1434-6028
РУБ
Physics, Condensed Matter
Рубрики:
IRON
NDFE3(BO3)(4)
GDFE3(BO3)(4)
Кл.слова (ненормированные):
Antiferromagnetic orders
--
Iron subsystems
--
Antiferromagnetic materials
--
Dysprosium compounds
--
Magnetic field effects
--
Magnetization
--
Specific heat
--
Thermodynamics
--
Single crystals
Аннотация:
We present thermodynamic and magnetic studies of single crystalline DyFe3(BO3)(4). The data indicate an easy axis antiferromagnetic order below T-N similar to 38 K which we attribute to the Fe subsystem. The Dy subsystem remains paramagnetic down to the lowest investigated temperatures of 2 K, but it is polarized by the Fe spins due to a f-d interaction. External magnetic field leads to a spin-flop transition in the iron subsystem as well as to superposed magnetization in the Dy subsystem. The repopulation of two low-lying Kramers doublets in Dy3+ ions results in well defined Schottky anomalies in specific heat and magnetization.
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Держатели документа:
Vasiliev, A. N.] Moscow MV Lomonosov State Univ, Low Temp Phys Dept, Moscow 119991, Russia
Klingeler, R.] IFW Dresden, Leibniz Inst Soild State & Mat Res, D-01171 Dresden, Germany
Bezmaternykh, L. N.] RAS, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Low Temperature Physics Department, Moscow State University, Moscow 119991, Russian Federation
Leibniz Institute for Solid State and Materials Research, IFW Dresden, Dresden 01171, Germany
L.V. Kirensky Institute of Physics, Siberian Branch, RAS, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Popova, E. A.; Tristan, N.; Vasiliev, A. N.; Temerov, V. L.; Темеров, Владислав Леонидович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Leps, N.; Buechner, B.; Klingeler, R.
}
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8.
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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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.
Fedorov, A. S.
Density and
thermodynamics
of hydrogen adsorbed on the surface of single-walled carbon nanotubes / A. S. Fedorov, P. B. Sorokin> // Phys. Solid State. - 2006. -
Vol. 48
,
Is. 2
. - P. 402-407,
DOI
10.1134/S1063783406020351. - Cited References: 22 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
MOLECULAR-DYNAMICS
ROOM-TEMPERATURE
STORAGE
ADSORPTION
H-2
TRANSITIONS
TUBES
Аннотация:
A method is proposed for calculating the adsorption of hydrogen in single-walled carbon nanotubes. This method involves solving the Schrodinger equation for a particle (hydrogen molecule) moving in a potential generated by the surrounding hydrogen molecules and atoms forming the wall of the carbon nanotube. The interaction potential for hydrogen molecules is taken in the form of the Silvera-Goldman empirical potential, which adequately describes the experimental data on the interaction between H(2) molecules (including the van der Waals interaction). The interaction of hydrogen molecules with carbon atoms is included in the calculation through the Lennard-Jones potential. The free energy at a nonzero temperature is calculated with allowance made for the phonon contribution, which, in turn, makes it possible to take into account the correlations in the mutual arrangement of the neighboring molecules. The dependences of the total energy, the free energy, and the Gibbs thermodynamic potential on the applied pressure P and temperature T are calculated for adsorbed hydrogen molecules. These dependences are obtained for the first time with due regard for the quantum effects. The pressure and temperature dependences of the hydrogen density m(P, T) are also constructed for the first time.
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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:
Sorokin, P. B.; Федоров, Александр Семенович
}
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11.
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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12.
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
WOS
,
Scopus
Держатели документа:
Institute of Physics, Krasnoyarsk, SU-660036, Russia
Доп.точки доступа:
Садреев, Алмаз Фаттахович
}
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13.
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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14.
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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15.
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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16.
Sidorov, K. A.
Exact solution for the
thermodynamics
of the one-dimensional Hubbard model with infinite repulsion in a magnetic field / K. A. Sidorov, N. V. Tikhonov, S. G. Ovchinnikov> //
VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P1.43. - P. 104. - References: 4 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
Hubbard model
--
magnetic field
--
infinite repulsion
--
thermodynamics
--
exact solution
Доп.точки доступа:
Tikhonov, N. V.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
Нет сведений об экземплярах
}
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17.
Val'kov, V. V.
Effect of intersite repulsion on the correlation functions and
thermodynamics
of an Ising chain with annealed magnetic disorder / V. V. Val’kov, M. S. Shustin> // Bull. Russ. Acad. Sci. Phys. - 2016. -
Vol. 80
,
Is. 11
. - P. 1335-1337,
DOI
10.3103/S1062873816110290. - Cited References: 6. - This work was supported by the Russian Foundation for Basic Research, project nos. 13-02-00073, 14-02-31237, and 15-42-04372. . - ISSN 1062-8738
Кл.слова (ненормированные):
Chains
--
Magnetic susceptibility
--
Temperature distribution
--
Thermodynamics
--
Transfer matrix method
--
Correlation function
--
Equilibrium behavior
--
Equilibrium distributions
--
Non-magnetic impurities
--
Quantum phase transitions
--
Repulsion parameter
--
Temperature dependence
--
Transfer matrix technique
--
Phase transitions
Аннотация:
An exact solution for a model describing the equilibrium behavior of an ensemble of Ising chains with nonmagnetic intersite repulsion of nearest neighbors and an equilibrium distribution of nonmagnetic impurities is obtained using the transfer matrix technique. The possibility of exciting quantum phase transitions using the intersite repulsion parameter in a system is demonstrated. Proximity to the critical points of these transitions has a substantial effect on the temperature dependence of a system’s magnetic susceptibility. © 2016, Allerton Press, Inc.
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Scopus
,
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Публикация на русском языке
Вальков, Валерий Владимирович. Влияние эффектов межузельного отталкивания на корреляционные функции и термодинамику изинговской цепочки с отожженным магнитным беспорядком [Текст] / В. В. Вальков, М. С. Шустин // Изв. РАН. Сер. физич. - 2016. - Т. 80 № 11. - С. 1504-1506
Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Shustin, M. S.; Шустин, Максим Сергеевич; Вальков, Валерий Владимирович
}
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18.
Zinenko, V. I.
Thermodynamics
of spin ice in staggered and direct (along the [111] axis) fields in the cluster approximation / V. I. Zinenko, M. S. Pavlovskii> // J. Exp. Theor. Phys. - 2017. -
Vol. 124
,
Is. 2
. - P. 295-303,
DOI
10.1134/S1063776117020182. - Cited References:15. - This work was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Territory Foundation for Supporting the Scientific and Research Activity (project no. 16-42-243039). . - ISSN 1063-7761. - ISSN 1090-6509
РУБ
Physics, Multidisciplinary
Рубрики:
ENTROPY
HEAT
Аннотация:
We have analyzed the low-temperature thermodynamic properties of spin ice in the staggered and direct (acting along the [111] axis) fields for rare-earth oxides with the chalcolamprite structure and general formula Re23+Me24+O72- . Calculations have been performed in the cluster approximation. The results have been compared with experimental temperature dependences of heat capacity and entropy for Dy2Ti2O7 compound for different values of the external field in the [111] direction. The experimental data and calculated results have also been compared for the Pr2Ru2O7 compound with the antiferromagnetic ordering of magnetic moments of ruthenium ions, which gives rise to the staggered field acting on the system of rare-earth ions. The calculated temperature dependences of heat capacity and entropy are in good agreement with experimental data.
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Публикация на русском языке
Зиненко, Виктор Иванович. Термодинамика спинового льда в «шатающемся» и прямом в направлении [111] полях в приближении кластеров [Текст] / В. И. Зиненко, М. С. Павловский // Журн. эксперим. и теор. физ. : Наука, 2017. - Т. 151 Вып. 2. - С. 346–355
Доп.точки доступа:
Pavlovskii, M. S.; Павловский, Максим Сергеевич; Зиненко, Виктор Иванович; Russian Foundation for Basic Research; Government of the Krasnoyarsk Territory; Krasnoyarsk Territory Foundation for Supporting the Scientific and Research Activity [16-42-243039]
}
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19.
The novel method
for determination of association constants of strong electrolytes ions using capillary electrophoresis technique [Text] / V. V. Sursyakova, S. N. Kalyakin [et al.]> //
XVII International Conference on Chemical
Thermodynamics
in Russia (RCCT-2009) : abstracts. - 2009. -
Vol. 1
. - P. 314
Доп.точки доступа:
Sursyakova, V.V.; Kalyakin, S.N.; Burmakina, G.V.; Rubaylo, A.I.; International Conference on Chemical
Thermodynamics
in Russia(17 ; 2009 ; 29 June-3 July ; Kazan)
}
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20.
Thermochemistry, structure, and
optical properties of a new β-La2(SO4)3 polymorphic modification / S. A. Basova, M. S. Molokeev, A. S. Oreshonkov [et al.]> // Inorganics. - 2023. -
Vol. 11
,
Is. 11
. - Ст. 434,
DOI
10.3390/inorganics11110434. - Cited References: 58. - The work was partly carried out within the framework of the Strategic Academic Leadership Program “Priority-2030” for the Kazan Federal University and the state assignment of the Kirensky Institute of Physics. - We acknowledge Lisa-Marie Wagner (JLU Giessen) for help with X-ray powder diffractometry, and Svetlana Volkova and Irina Palamarchuk (UTMN) for help with IR- and UV-spectrometry. The use of equipment provided by the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS” is acknowledged . - ISSN 2304-6740
Кл.слова (ненормированные):
rare earths
--
lanthanum
--
sulfate
--
crystal chemistry
--
thermodynamics
--
chemical kinetics
--
dielectrics
Аннотация:
A new polymorphic modification of lanthanum sulfate was obtained by thermal dehydration of the respective nonahydrate. According to powder X-ray diffraction, it was established that β-La2(SO4)3 crystallized in the C2/c space group of the monoclinic system with the KTh2(PO4)3 structure type (a = 17.6923(9), b = 6.9102(4), c = 8.3990(5) Å, β = 100.321(3)°, and V = 1010.22(9) Å3). Temperature dependency studies of the unit cell parameters indicated almost zero expansion along the a direction in the temperature range of 300–450 K. Presumably, this occurred due to stretching of the [LaO9]n chains along the c direction, which occurred without a significant alteration in the layer thickness over the a direction. A systematic study of the formation and destruction processes of the lanthanum sulfates under heating was carried out. In particular, the decisive impact of the chemical composition and formation energy of compounds on the thermodynamic and kinetic parameters of the processes was established. DFT calculations showed β-La2(SO4)3 to be a dielectric material with a bandgap of more than 6.4 eV. The processing of β-La2(SO4)3 with the Kubelka–Munk function exhibited low values below 6.4 eV, which indicated a fundamental absorption edge above this energy that was consistent with LDA calculations. The Raman and infrared measurements of β-La2(SO4)3 were in accordance with the calculated spectra, indicating that the obtained crystal parameters represented a reliable structure.
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Scopus
,
WOS
Держатели документа:
Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen 625003, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Laboratory of Theory and Optimization of Chemical and Technological Processes, Tyumen State University, Tyumen 625003, Russia
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
School of Engineering and Construction, Siberian Federal University, Krasnoyarsk 660041, Russia
A.M. Butlerov Chemistry Institute, Kazan Federal University, Kazan 420008, Russia
Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany
Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk 660041, Russia
Departement of Science and Innovation, Northern Trans-Ural Agricultural University, Tyumen 625003, Russia
School of Natural Sciences, Tyumen State University, Tyumen 625003, Russia
Center for Materials Research (LaMa), Justus-Liebig-University Giessen, 35392 Giessen, Germany
Construction Institute, Industrial University of Tyumen, Tyumen 625000, Russia
Доп.точки доступа:
Basova, S. A.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Zhernakov, M. A.; Khritokhin, N. A.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Sal’nikova, E. I.; Azarapin, N. O.; Shelpakova, N. A.; Muller-Buschbaum, K.; Denisenko, Yu. G.
}
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