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Sukhinin, Y. V.
Phase transitions in self-assembled monolayers of alkanethiols containing the polar group / Y. V. Sukhinin // J. Exp. Theor. Phys. - 1998. - Vol. 87, Is. 1. - P. 115-122, DOI 10.1134/1.558645. - Cited References: 38 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
ORGANIZED MOLECULAR ASSEMBLIES
   ALKYL THIOL MONOLAYERS
   STRUCTURAL CHARACTERIZATION
   DYNAMICS SIMULATION
   LANGMUIR MONOLAYER
   SURFACES
   GOLD
   FILMS
   AU(111)
   MODEL
Аннотация: Equilibrium states of the system of self-assembled monolayers (SAMs) of n-alkanethiol molecules HS(CH2)(n-1)(X) with polar group X chemiabsorbed on the Au(111) crystal surface are considered. The couplings between the atoms (C, H) of the n-alkanethiols are approximated by the Lennard-Jones potential. The couplings between the n-alkanethiols and the crystal surface are approximated by the 12-3 potential. The interactions of polar groups and the self-images with the metal substrate are taken into consideration. The phase-transition temperatures, the structural order and equilibrium tilt, and the twist and azimuthal angles of the macromolecules, which depend on the dipole moments, are found. (C) 1998 American Institute of Physics.

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
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Sukhinin, Y. V.
Ising-like model of tilted phase transitions in Langmuir monolayers / Y. V. Sukhinin // Phys. Rev. B. - 2006. - Vol. 74, Is. 19. - Ст. 195423, DOI 10.1103/PhysRevB.74.195423. - Cited References: 27 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
MONTE-CARLO-SIMULATION
   FATTY-ACID MONOLAYERS
   AIR-WATER-INTERFACE
   AMPHIPHILE MONOLAYERS
   ROTATOR PHASES
   ALKANES
   DIAGRAM
   POTENTIALS
   ORDER
Аннотация: Two Ising models on a rectangular lattice (sigma(1) model and sigma(2) model) linked to three- and four-spin interactions are used to describe the sequence of tilted phase transitions in monolayers of amphiphilic long-chain molecules on an air-water surface. Starting from Morse atom-atom potentials self-consistent equations for basic thermal averages are derived in terms of a mean-field approximation. We employ the model for CH3(CH2)(18)COOH at two values of the molecule density and obtain all known tilted phases, including an intermediate one.

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Держатели документа:
Kirensky Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation
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SADREEV, A. F.
UNUSUAL GAUGE PROPERTIES OF THE LOW-TEMPERATURE PHASE OF PARAMAGNETIC SYSTEMS COUPLED WITH A RADIATION-FIELD / A. F. SADREEV, Y. V. SUKHININ // Phys. Lett. A. - 1986. - Vol. 113, Is. 9. - P. 485-488, DOI 10.1016/0375-9601(86)90126-X. - Cited References: 12 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
SUKHININ, Y. V.; Садреев, Алмаз Фаттахович
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Sadreev, A. F.
Phase transitions in a system of CH3(CH2)(n-1) self-assembled on the Au(111) crystal surface / A. F. Sadreev, Y. V. Sukhinin // Phys. Rev. B. - 1996. - Vol. 54, Is. 24. - P. 17966-17973, DOI 10.1103/PhysRevB.54.17966. - Cited References: 44 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
ORGANIZED MOLECULAR ASSEMBLIES
   ALKYL THIOL MONOLAYERS
   STRUCTURAL CHARACTERIZATION
   DYNAMICS SIMULATION
   DEVILS STAIRCASE
   GOLD SURFACES
   FILMS
   MODEL
   CHAIN
   DIFFRACTION
Аннотация: The n-alkanethiols CH3(CH2)(n-1) on the crystal surface of gold (111) are considered. Couplings between atoms (C, H) of the n-alkanethiols were modelled by the Morse potential, and couplings between the n-alkanethiols and the crystal surface were modelled by 12-3 potentials. Because of symmetry Z(2) of the n-alkanethiols in a tilted state, the system can be reduced to the Ising model on the triangular lattice, the phase diagram of which can be explicitly considered. Depending on the choice of the coupling parameters, the ordered state of the system may form an incommensurate or 2X1 superstructure. The temperatures of the phase transition, equilibrium tilting, twisting, and azimuthal angles are found to depend on the Morse coupling constants.

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Sukhinin, Y. V.; Садреев, Алмаз Фаттахович
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Sadreev, A. F.
The microscopic theory of phase-transitions in nano2 / A. F. Sadreev, Y. V. Sukhinin // Zhurnal Eksperimentalnoi Teor. Fiz. - 1991. - Vol. 100, Is. 6. - P. 1999-2013. - Cited References: 29 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
INCOMMENSURATE PHASE
Аннотация: The energy levels and eigen wavefunctions of nitrite groups (NG) in the crystal potential of NaNO2 are found and the four-dimensional representation of the Hubbard operators for NG is constructed. The Born-Mayer and dipole-dipole interactions between NG are projected into the Hubbard operator representation and the hamiltonian of the system is formulated with the involvement of NG coupling with the translational degrees of freedom. The quantitative temperature - pressure phase diagram of crystal is obtained. The dependence of the incommensurate phase wave vector on temperature, pressure, and NG dipole moment is found as well.

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Sukhinin, Y. V.; Садреев, Алмаз Фаттахович
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SADREYEV, A. F.
MICROSCOPIC THEORY OF SUCCESSIVE PHASE-TRANSITIONS IN ALKALI-METAL CYANIDES / A. F. SADREYEV, Y. V. SUKHININ // Zhurnal Eksperimentalnoi Teor. Fiz. - 1990. - Vol. 97, Is. 1. - P. 283-301. - Cited References: 42 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

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SUKHININ, Y. V.
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SADREEV, A. F.
DIPOLE-DIPOLE INTERACTION EFFECT ON RADIATION-FIELD CONDENSATION IN PARAMAGNETIC CRYSTAL-RESONATORS / A. F. SADREEV, Y. V. SUKHININ // Fiz. Tverd. Tela. - 1984. - Vol. 26, Is. 9. - P. 2808-2814. - Cited References: 13 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
SUKHININ, Y. V.
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