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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S. Ya., Shabanov V. F.
Заглавие : Surface shear acoustic-waves at the elastic medium nematic liquid-crystal interface
Место публикации : Fiz. Tverd. Tela. - 1991. - Vol. 33, Is. 9. - P.2579-2583. - ISSN 0367-3294
Примечания : Cited References: 11
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gunyakov V. A., Parshin A. M., Shabanov V. F.
Заглавие : Investigation of the nematic-ferroelectric interface under a strong magnetic field
Место публикации : Solid State Commun.: PERGAMON-ELSEVIER SCIENCE LTD, 1998. - Vol. 105, Is. 12. - P761-765. - ISSN 0038-1098, DOI 10.1016/S0038-1098(97)10221-6
Примечания : Cited References: 14
Предметные рубрики: ANCHORING ENERGY
LIQUID-CRYSTAL
WALL INTERFACE
SURFACE
TRANSITION
Ключевые слова (''Своб.индексиров.''): 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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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Y. I., Maradudin A. A.
Заглавие : Effects of one- and three-dimensional inhomogeneities on the wave spectrum of multilayers with finite interface thicknesses
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2002. - Vol. 65, Is. 2. - Ст.24207. - ISSN 1098-0121, DOI 10.1103/PhysRevB.65.024207
Примечания : Cited References: 24
Предметные 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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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Parshin A. M., Gunyakov V. A., Shabanov V. F.
Заглавие : Temperature-induced orientational transition of nematics on the surface of a ferroelectric crystal
Разночтения заглавия :авие SCOPUS: Temperature-Induced Orientational Transition of Nematics on the Surface of a Ferroelectric Crystal
Место публикации : JETP Letters. - 2002. - Vol. 76, Is. 5. - P.299-301. - ISSN 0021-3640, DOI 10.1134/1.1520626
Примечания : Cited References: 15
Предметные 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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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mahesh R., Sander D., Zharkov S. M., Kirschner J.
Заглавие : Stress and growth of Ag monolayers on a Fe(100) whisker
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2003. - Vol. 68, Is. 4. - Ст.45416. - ISSN 1098-0121, DOI 10.1103/PhysRevB.68.045416
Примечания : Cited References: 42
Предметные 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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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Varnakov S. N., Parshin A. S., Ovchinnikov S. G., Rafaja D., Kalvoda L., Balaev A. D., Komogortsev S. V.
Заглавие : Structural and magnetic characteristics of Fe/Si bilayer and multilayer films obtained by thermal deposition in ultrahigh vacuum
Место публикации : Tech. Phys. Lett.: AMER INST PHYSICS, 2005. - Vol. 31, Is. 11. - P947-950. - ISSN 1063-7850, DOI 10.1134/1.2136961
Примечания : Cited References: 15
Предметные 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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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gunyakov V. A., Parshin A. M., Shabanov V. F.
Заглавие : Temperature dependence of the effective anchoring energy for a nematic-ferroelectric interface
Место публикации : The European Physical Journal E - Soft Matter: Springer-Verlag GmbH, 2006. - Vol. 20, Is. 4. - P.467-473. - ISSN 1292-8941, DOI 10.1140/epje/i2006-10037-9. - ISSN 1292-895X(eissn)ID 16953343
Примечания : 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.
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sukhinin Y. V.
Заглавие : Ising-like model of tilted phase transitions in Langmuir monolayers
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 2006. - Vol. 74, Is. 19. - Ст.195423. - ISSN 1098-0121, DOI 10.1103/PhysRevB.74.195423
Примечания : Cited References: 27
Предметные 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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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zyryanov V. Y., Krakhalev M. N., Prishchepa O. O., Shabanov A. V.
Заглавие : Orientational structure transformations caused by the electric-field-induced ionic modification of the interface in nematic droplets
Разночтения заглавия :авие SCOPUS: Orientational structure transformations caused by the electric-field- induced ionic modification of the interface in nematic droplets
Место публикации : JETP Letters. - 2007. - Vol. 86, Is. 6. - P.383-388. - ISSN 0021-3640, DOI 10.1134/S0021364007180087
Примечания : Cited References: 18
Предметные 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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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Edelman I. S., Patrin G. S., Velikanov D. A., Chernichenko A. V., Turpanov I. A., Bondarenko G. V.
Заглавие : Interface effect on the magnetic properties of Ni-Ge bilayer films
Место публикации : JETP Letters. - 2008. - Vol. 87, Is. 5. - P.262-265. - ISSN 0021-3640, DOI 10.1134/S0021364008050081
Примечания : Cited References: 12
Предметные 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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