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Vetrov, S. Ya.
Surface shear acoustic-waves at the elastic medium nematic liquid-crystal interface / S. Ya. Vetrov, V. F. Shabanov // Fiz. Tverd. Tela. - 1991. - Vol. 33, Is. 9. - P. 2579-2583. - Cited References: 11 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Shabanov, V. F.; Шабанов, Василий Филиппович; Ветров, Степан Яковлевич
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Gunyakov, V. A.
Investigation of the nematic-ferroelectric interface under a strong magnetic field / V. A. Gunyakov, A. M. Parshin, V. F. Shabanov // Solid State Commun. - 1998. - Vol. 105, Is. 12. - P. 761-765, DOI 10.1016/S0038-1098(97)10221-6. - Cited References: 14 . - ISSN 0038-1098

РУБ Physics, Condensed Matter
Рубрики:
ANCHORING ENERGY
   LIQUID-CRYSTAL
   WALL INTERFACE
   SURFACE
   TRANSITION
Кл.слова (ненормированные):
ferroelectrics -- liquid crystals -- surfaces and interfaces -- phase transitions -- light absorption
Аннотация: The behaviour of methoxy benzylidene butyl aniline (MBBA) nematic liquid crystal on the;cleavage surface of triglycine sulphate under a strong magnetic field has been investigated. With the saturation regime obtained for the liquid crystal cell in fields up to 100 kOe, for the first time the possibility appears to determine not only the ordinary anchoring coefficient W-2, but the effective anchoring energy W* without any fitting procedure. Considerable difference in these parameters (two orders of magnitude) disagrees with "electrical" corrections of the Rapini-Papoular approximation. This discrepancy is connected with the surface polarization caused by spontaneous ordering of longitudinal components of MBBA molecular dipoles on interface. The form of the anisotropic interaction potential for such interfaces has to take into account polar effects in near-surface layers of the liquid crystal. (C) 1998 Elsevier Science Ltd.

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

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Shabanov, V. F.; Шабанов, Василий Филиппович; Гуняков, Владимир Алексеевич
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Ignatchenko, V. A.
Effects of one- and three-dimensional inhomogeneities on the wave spectrum of multilayers with finite interface thicknesses / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2002. - Vol. 65, Is. 2. - Ст. 24207, DOI 10.1103/PhysRevB.65.024207. - Cited References: 24 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
PERIODIC MULTILAYERS
   SPIN-WAVES
   LOCALIZATION
   SUPERLATTICES
   SYSTEMS
   DISORDER
   AVERAGE
   MEDIA
Аннотация: To describe a partially randomized multilayer structure with arbitrary thicknesses of the interfaces between layers, we introduce a model in which the dependence of a material parameter along the axis of such a Superlattice is described by a Jacobian elliptic sine function with a random spatial modulation of its period. Both one- and three-dimensional inhomogeneities of the period are considered. We develop the correlation function for this model, and investigate the dispersion law and damping of averaged waves in this superlattice. The dependencies of the widths of the gaps in the spectrum and the damping at the boundaries of all odd Brillouin zones, on the thicknesses of the interfaces, and on the dimensionality, intensity, and correlation wave number of the inhomogeneities are found. It is shown that experimental investigations of the widths of the gaps and damping for several Brillouin zones could permit, in principle, determining all parameters of the superlattice as well as the parameters of the inhomogeneities from these spectral characteristics.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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Parshin, A. M.
Temperature-induced orientational transition of nematics on the surface of a ferroelectric crystal / A. M. Parshin, V. A. Gunyakov, V. F. Shabanov // JETP Letters. - 2002. - Vol. 76, Is. 5. - P. 299-301, DOI 10.1134/1.1520626. - Cited References: 15 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
INTERFACE
SUBSTRATE
Аннотация: A temperature-induced orientational transition is investigated in a mixture of nematic liquid crystals on the surface of a cleavage of a ferroelectric triglycine sulfate crystal. The transition has been observed by the variation of the polarized absorbance components of a dye introduced into the nematic matrix with increasing temperature. The reorientation of molecules in the liquid crystal volume confined by solid walls is due to competition between dispersion and polar forces at the surface and the decrease in the electric field of the substrate up to its complete disappearance at the ferroelectric Curie point. (C) 2002 MAIK "Nauka / Interperiodica".

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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, 660036, Russian Federation

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Паршин, Александр Михайлович
}
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Stress and growth of Ag monolayers on a Fe(100) whisker / R. . Mahesh [et al.] // Phys. Rev. B. - 2003. - Vol. 68, Is. 4. - Ст. 45416, DOI 10.1103/PhysRevB.68.045416. - Cited References: 42 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
FCC-FE FILMS
   MAGNETIC SUPERLATTICES
   ULTRATHIN FILMS
   OSCILLATIONS
   CU(100)
   SANDWICHES
   INTERLAYER
   LAYERS
   MAGNETORESISTANCE
   INTERFACE
Аннотация: In situ stress measurements have been performed during the deposition of epitaxial Ag monolayers on a Fe whisker. A compressive stress of -0.6 GPa is measured above a 5-ML Ag thickness which is ascribed to the epitaxial misfit of -0.8% between Ag and Fe. Back-extrapolation of the coverage dependent stress measurements to zero coverage reveals an Ag-induced change of the surface stress of Fe(100) of -1.23 N/m. Comparing this surface stress change with the calculated surface stress for Ag(100) suggests a tensile surface stress of +2.05 N/m for clean Fe(100). The deposition of 2 - 5 layers of Ag does not change the stress induced by the first layer significantly. This almost stress free growth is assigned to a rougher surface morphology which is most likely caused by a surface alloy formation.

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Держатели документа:
Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Mahesh, R.; Sander, D.; Zharkov, S. M.; Жарков, Сергей Михайлович; Kirschner, J.
}
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Structural and magnetic characteristics of Fe/Si bilayer and multilayer films obtained by thermal deposition in ultrahigh vacuum / S. N. Varnakov [et al.] // Tech. Phys. Lett. - 2005. - Vol. 31, Is. 11. - P. 947-950, DOI 10.1134/1.2136961. - Cited References: 15 . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
GIANT MAGNETORESISTANCE
SUPERLATTICES
INTERFACE
Аннотация: The structural and magnetic characteristics of Fe/Si bilayer and multilayer films with nanometer-thick layers obtained by thermal deposition in ultrahigh vacuum have been studied by methods of small-angle X-ray scattering, electron spectroscopy, and magnetometry. It is established that the mechanisms involved in the formation of Fe/Si and Si/Fe interfaces are different. (C) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660041, Russia
TU Bergakad Freiberg, Inst Phys Met, D-09599 Freiberg, Germany
Czech Tech Univ, Prague 16636 6, Czech Republic
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, 660041, Russian Federation
Institute of Physical Metallurgy, TU Bergakademie Freiberg, D-09599 Freiberg, Germany
Czech Technical University, 16636 Prague 6, Czech Republic

Доп.точки доступа:
Varnakov, S. N.; Варнаков, Сергей Николаевич; Parshin, A. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rafaja, D.; Kalvoda, L.; Balaev, A. D.; Балаев, Александр Дмитриевич; Komogortsev, S. V.; Комогорцев, Сергей Викторович
}
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Temperature dependence of the effective anchoring energy for a nematic-ferroelectric interface [Text] / V. A. Gunyakov, A. M. Parshin, V. F. Shabanov // The European Physical Journal E - Soft Matter. - 2006. - Vol. 20, Is. 4. - P. 467-473, DOI 10.1140/epje/i2006-10037-9ID 16953343. - Библиогр.: 30. - grants No. 05-03-32852 of RFBR, No. 8.1 of Presidium of the RAS and No. 2.10.2 of DPS of the RAS, No. 02.445.11.7262 of Federal Special Science and Technical Programme, SS-6612.2006.3. . - ISSN 1292-8941. - ISSN 1292-895X

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Держатели документа:
L.V. Kirensky Institute of Physics,Siberian Branch,Russian Academy of Sciences

Доп.точки доступа:
Gunyakov, V. A.; Parshin, A. M.; Паршин Александр Михайлович; Shabanov, V. F.; Шабанов Василий Филиппович
}
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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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Orientational structure transformations caused by the electric-field-induced ionic modification of the interface in nematic droplets / V. Y. Zyryanov [et al.] // JETP Letters. - 2007. - Vol. 86, Is. 6. - P. 383-388, DOI 10.1134/S0021364007180087. - Cited References: 18 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID
TRANSITIONS
FILMS
Аннотация: The films of a polymer-dispersed nematic liquid crystal doped with an ionic surfactant were studied. The surface-anchoring modification effect caused by the local increase in the concentration of surface-active ions was observed at the polymer-liquid crystal interface under the action of an electric field. The modification of the boundary conditions leads to the transformation of the orientational structure of the nematic droplets and, as a result, to an appreciable change in their texture patterns and light-scattering efficiency at the interfaces. The monopolar director configurations (normal and curved) arising in the process of orientational structure transformations are considered and their typical textures are demonstrated. The possibility that the monopolar structure can be formed is theoretically substantiated by the computer simulation of the director field in a nematic droplet with the boundary conditions corresponding to the experiment.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Krasnoyarsk Scientific Center, Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Shabanov, A. V.; Шабанов, Александр Васильевич
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10.

Interface effect on the magnetic properties of Ni-Ge bilayer films / I. S. Edelman [et al.] // JETP Letters. - 2008. - Vol. 87, Is. 5. - P. 262-265, DOI 10.1134/S0021364008050081. - Cited References: 12 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
LAYER THICKNESS
CO/GE/CO FILMS
DEPENDENCE
Аннотация: Magnetic and magneto-optical properties of the Ni-Ge bilayer films are studied. The unusual temperature behavior of the magnetization curves is revealed: the hysteresis loops at room temperature have a near-rectangular shape; when the films are cooled down to 4.2 K, the coercive force increases by more than an order of magnitude and the asymmetry and displacement of the loop along the field axis are observed. These effects are stronger in thinner Ni layers. The observed features are attributed to the effect of the interlayer between the Ni and Ge layers, which has a complex magnetic structure.

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Публикация на русском языке Влияние границы раздела на магнитные свойства Ni-Ge пленок [Текст] / И. С. Эдельман, Г. С. Патрин, Д. А. Великанов [и др.] // Письма в "Журнал экспериментальной и теоретической физики". - 2008. - Т. 87 Вып. 5. - С. 310-313

Держатели документа:
[Edelman, I. S.
Chernichenko, A. V.
Turpanov, I. A.
Bondarenko, G. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Patrin, G. S.
Velikanov, D. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Patrin, G. S.; Патрин, Геннадий Семёнович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Chernichenko, A. V.; Черниченко, Ангелина Виталиевна; Turpanov, I. A.; Турпанов, Игорь Александрович; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич
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