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Aplesnin, S. S.
Thermodynamic properties of antiferromagnets with random interactions / S. S. Aplesnin // Phys. Status Solidi B. - 1984. - Vol. 122, Is. 1. - P. K33-K36, DOI 10.1002/pssb.2221220152. - Cited References: 5 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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FEDOROV, Y. M.
MAGNETO-OPTICAL PHENOMENA IN RHOMBOHEDRIC ANTIFERROMAGNETS WITH WEAK FERROMAGNETISM / Y. M. FEDOROV, A. A. LEKSIKOV, A. E. AKSENOV // Fiz. Tverd. Tela. - 1984. - Vol. 26, Is. 1. - P. 220-226. - Cited References: 24 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
LEKSIKOV, A. A.; AKSENOV, A. E.
}
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ANTIFERROMAGNETIC-RESONANCE OF LOW-DIMENSIONAL RB2MNXCD1-XCL4 ANTIFERROMAGNETS / G. A. PETRAKOVSKII [и др.] // Fiz. Tverd. Tela. - 1984. - Vol. 26, Is. 4. - P. 1200-1202. - Cited References: 5 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
PETRAKOVSKII, G. A.; EMELYANOVA, L. S.; POZDNYAKOV, V. G.; KOROLEV, V. K.
}
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GEKHT, R. S.
SINUSOIDAL INCOMMENSURATE STRUCTURE IN SPIRAL ANTIFERROMAGNETS / R. S. GEKHT // Solid State Commun. - 1985. - Vol. 55, Is. 8. - P. 709-711, DOI 10.1016/0038-1098(85)90239-X. - Cited References: 6 . - ISSN 0038-1098

РУБ Physics, Condensed Matter

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Scopus
Держатели документа:
L.V. Kirensky Institute of Physics, USSR Academy of Sciences, Siberian Branch, Krasnoyarsk, 660036, Russian Federation
ИФ СО РАН
}
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OVCHINNIKOV, S. G.
SPIN-WAVE THEORY OF EASY-AXIS QUASI-2-DIMENSIONAL HEISENBERG ANTIFERROMAGNETS / S. G. OVCHINNIKOV, O. G. PETRAKOVSKII // Fiz. Tverd. Tela. - 1987. - Vol. 29, Is. 6. - P. 1866-1868. - Cited References: 5 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
PETRAKOVSKII, O. G.
}
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Aplesnin, S. S.
Monte-Carlo study of two-dimensional antiferromagnets with competing anisotropies / S. S. Aplesnin // Phys. Status Solidi B. - 1988. - Vol. 149, Is. 1. - P. 267-273, DOI 10.1002/pssb.2221490129. - Cited References: 6 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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Gekht, R. S.
Magnetic states and phase-transitions in frustrated triangular-lattice antiferromagnets / R. S. Gekht // Uspekhi Fiz. Nauk. - 1989. - Vol. 159, Is. 2. - P. 261-296, DOI 10.3367/UFNr.0159.198910b.0261. - Cited References: 137 . - ISSN 0042-1294

РУБ Physics, Multidisciplinary

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Aplesnin, S. S.
Mmonte-Carlo study of two-dimensional quantum antiferromagnets with random anisotropies and spin s=1 / S. S. Aplesnin // Phys. Status Solidi B. - 1989. - Vol. 153, Is. 1. - P. K79-K84, DOI 10.1002/pssb.2221530158. - Cited References: 6 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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MAGNETIC-PROPERTIES OF QUASIONE-DIMENSIONAL TRIANGULAR ANTIFERROMAGNETS / G. A. PETRAKOVSKII [и др.] // Fiz. Tverd. Tela. - 1989. - Vol. 31, Is. 8. - P. 169-175. - Cited References: 15 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
PETRAKOVSKII, G. A.; FEDOSEEVA, N. V.; APLESNIN, S. S.; KOROLEV, V. K.
}
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10.

APLESNIN, S. S.
INCOMMENSURATE AND APERIODIC STRUCTURES IN FRUSTRATED ANTIFERROMAGNETS WITH HCP LATTICES / S. S. APLESNIN, R. S. GEKHT // Zhurnal Eksperimentalnoi Teor. Fiz. - 1989. - Vol. 96, Is. 6. - P. 2163-2171. - Cited References: 16 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

WOS
Доп.точки доступа:
GEKHT, R. S.
}
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11.

Aplesnin, S. S.
Magnetic phases of a stochastic anisotropic hexagonal magnet / S. S. Aplesnin // Fiz. Tverd. Tela. - 1990. - Vol. 32, Is. 11. - P. 3220-3229. - Cited References: 11 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
TRIANGULAR-LATTICE
ANTIFERROMAGNETS

WOS

Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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12.

Aplesnin, S. S.
Temperature-induced weak ferromagnetism in an anisotropic magnetic with competing interactions / S. S. Aplesnin // Zhurnal Eksperimentalnoi Teor. Fiz. - 1991. - Vol. 99, Is. 1. - P. 189-193. - Cited References: 10 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
ANTIFERROMAGNETS
Аннотация: The region of temperature and exchange with a temperature-induced weak ferro magnetic moment in a magnet with competing interactions in the second coordination sphere and with anisotropic distribution of opposite sign bonds possessing a tensor nature in the first sphere is determined by the Monte Carlo method. The temperature dependence of the susceptibility, specific heat and magnetization in an external field is determined.

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Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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13.

GEKHT, R. S.
MAGNETIC-STRUCTURES AND PROPERTIES OF STATES IN STRONGLY FRUSTRATED HEISENBERG ANTIFERROMAGNETS / R. S. GEKHT // Zhurnal Eksperimentalnoi Teor. Fiz. - 1992. - Vol. 102, Is. 6. - P. 1968-1982. - Cited References: 23 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
PHASE-TRANSITIONS
   SPIN
   LATTICE
   MODELS
   LONG
Аннотация: The magnetic structures and properties of states in frustrated Heisenberg antiferromagnets are analyzed. It is shown that frustrations induced due to additional spins in the system lead to a large variety of phase with the commensurable and uncommensurable periods and also to arising nonperiodical phases. The energy spectrum of states is studied. It is found that in the large region of the frustration parameter variation the modulated phase (0, Q) is unstable. The phase diagram of states is found and the region of local degeneration for some structures is indicated.

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14.

APLESNIN, S. S.
FORMATION OF FERROMAGNETIC ORDER IN ANISOTROPIC FRUSTRATED ANTIFERROMAGNETS / S. S. APLESNIN // Fiz. Tverd. Tela. - 1992. - Vol. 34, Is. 2. - P. 554-560. - Cited References: 5 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
COMPETING INTERACTIONS
MAGNETIC-PROPERTIES

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15.

GEKHT, R. S.
LOW-TEMPERATURE PROPERTIES OF QUASI-2-DIMENSIONAL FRUSTRATED ANTI-FERROMAGNETICS / R. S. GEKHT, V. I. PONOMAREV // Fiz. Tverd. Tela. - 1994. - Vol. 36, Is. 11. - P. 3394-3397. - Cited References: 8 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
MAGNETIC STATES
ANTIFERROMAGNETS

WOS

Доп.точки доступа:
PONOMAREV, V. I.
}
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16.

Gekht, R. S.
Magnetic states and spin-wave excitations in strongly frustrated 2d heisenberg antiferromagnets / R. S. Gekht, A. M. Epikhin, V. I. Ponomarev // Phys. Lett. A. - 1995. - Vol. 201, Is. 2-3. - P. 247-251, DOI 10.1016/0375-9601(95)00222-O. - Cited References: 19 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary

Аннотация: It is shown that frustrations caused by additional spins result in a greater variety of phases with commensurate and incommensurate periods as well as in the appearance of nonperiodic phases. It is established that a single-e modulated phase is unstable against zero-point motions. As a result, a disordered state with zero magnetization at a site can exist in a wide range of values of the frustration parameters.

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Доп.точки доступа:
Epikhin, A. M.; Ponomarev, V. I.
}
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17.

Bondarenko, I. N.
Magnetic transitions in layered triangular antiferromagnets / I. N. Bondarenko, R. S. Gekht, V. I. Ponomarev // Phys. Lett. A. - 1996. - Vol. 222, Is. 4. - P. 269-274, DOI 10.1016/0375-9601(96)00635-4. - Cited References: 22 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary
Рубрики:
HEISENBERG-ANTIFERROMAGNET
   PHASE-TRANSITION
   VBR2
   SYSTEMS
   FIELD
   VCL2
Кл.слова (ненормированные):
triangular antiferromagnets -- quantum and thermal fluctuations -- successive phase transitions -- Quantum and thermal fluctuations -- Successive phase transitions -- Triangular antiferromagnets
Аннотация: Magnetic states and phase transitions of the layered triangular antiferromagnets in an applied field are studied. It is shown that in compounds like VBr2 and VCl2 quantum effects change the ground state structure and cause successive phase transitions as the magnetic field increases. Coplanar structures of different spin configuration are realized far from the saturation field and a noncoplanar structure of umbrella-type configuration is realized near this field. The ground-state phase diagram is constructed, and a finite region of fields where the collinear phase is also possible is indicated.

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Scopus
Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Gekht, R. S.; Ponomarev, V. I.
}
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18.

Aplesnin, S. S.
Quantum spin liquid in the 2D anisotropic Heisenberg model with frustrated next nearest neighbor exchange / S. S. Aplesnin // Low Temp. Phys. - 1998. - Vol. 24, Is. 8. - P. 572-577 ; Физика низких температур, DOI 10.1063/1.593639. - Cited References: 25 . - ISSN 1063-777X

РУБ Physics, Applied
Рубрики:
SQUARE-LATTICE ANTIFERROMAGNETS
   VALENCE BOND STATES
   SYSTEMS
   SUPERCONDUCTIVITY
   SYMMETRY
Аннотация: The two-dimensional (2D) Heisenberg model with anisotropic exchange (Delta = 1 - J(x)/J(z)) and with negative next nearest neighbor exchange (J(2)) with S = 1/2 is investigated by using the quantum-mechanical Monte-Carlo method. The energy, magnetic moment at a site, heat capacity, and spin-spin correlation functions are calculated. The stability regions for Neel ordering of spins as well as the strip-phase and gapless quantum spin liquid are determined in the interval Delta/2 less than or equal to J(2)/ J(1)less than or equal to 1/(2 Delta). (C) 1998 American Institute of Physics. [S1063-777X(98)00808-1].

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Держатели документа:
Russian Acad Sci, LV Kirenskii Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Аплеснин, Сергей Степанович

}
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19.

Aplesnin, S. S.
Dimer state in the two-dimensional anisotropic alternated-exchange Heisenberg model / S. S. Aplesnin // Phys. Solid State. - 1998. - Vol. 40, Is. 6. - P. 986-990, DOI 10.1134/1.1130463. - Cited References: 14 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
SPIN-PEIERLS
   HUBBARD-MODEL
   SUPERCONDUCTIVITY
   ANTIFERROMAGNETS
Аннотация: An analysis is made of the two-dimensional Heisenberg model with S = 1/2, anisotropic exchange interaction between nearest neighbors, and alternating exchange in two directions, [100] and [010] (corresponding to condensation of the (pi,pi) mode) and in one direction [100] (corresponding to condensation of the (pi,0) mode), The quantum Monte Carlo method is used to calculate the thermodynamic characteristics and the spin correlation functions which are used as the basis to determine the boundary of stability of an anisotropic antiferromagnetic with respect to alternation of exchange delta = (1 - J(x,y) / J(z))(0.4) in the (pi,pi) model and delta = (1 - J(x,y) / J(z))(0.31) in the (pi,0) model. In the (pi,0) model a disordered quantum state exists in the range (1 - J(x,y) / J(z))(0.31) delta (0.3-0.35). The energy (E - 0.68)

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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20.

Aplesnin, S. S.
The study of magnetic properties of the quasi-one-dimensianal spin-1/2 antiferromagnet by Monte-Carlo method / S. S. Aplesnin // Phys. Low-Dimens. Struct. - 2000. - Vol. 07.08.2013. - P. 37-46. - Cited References: 15 . - ISSN 0204-3467

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
ONE-DIMENSIONAL ANTIFERROMAGNETS
   SYSTEMS
   CHAINS
   CA2CUO3
Аннотация: The thermodynamic quantities, two- and four-spin correlation functions as well as the correlation radius for weakly coupled antiferromagnetic spin chains with S = 1/2 are calculated using the mean-field approximation for the interchain coupling (J(2)) for longitudinal and transverse spin components by quantum Monte Carlo method. Results for the staggered magnetization and Neel temperature are in agreement with general scaling arguments. The value of triplet DeltaS(z) =1 gp in the spectrum of excitations is estimated. The transverse staggered field was found to induce an additional maximum in the correlation radius of the four spin correlation function around T/J(1) approximate to [0.05 divided by 0.075), J(2)/J(1) 0.03.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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