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 Найдено в других БД:Каталог книг и брошюр библиотеки ИФ СО РАН (37)Каталог журналов библиотеки ИФ СО РАН (1)
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Общее количество найденных документов : 374
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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shabanov V. F., Volkov V. E., Korshunov A. V.
Заглавие : Some peculiarities in combination scattering spectra of molecular complexes
Место публикации : J. Appl. Spectrosc. - 1970. - Vol. 13, Is. 3. - P.1241-1244. - ISSN 00219037 (ISSN), DOI 10.1007/s10812-018-0578-8
Примечания : Cited References: 8
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fedotov A. P., Botvich A. N., Shabanov V. F.
Заглавие : Raman-scattering studies of proton and deuteron dynamics in NaH3(SeO3)2 and NaD3(SeO3)2 crystals
Место публикации : Fiz. Tverd. Tela. - 1981. - Vol. 23, Is. 5. - P.1331-1334. - ISSN 0367-3294
Примечания : Cited References: 12
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Prokert F., Aleksandrov K. S.
Заглавие : Neutron scattering studies on phase transition and phonon dispersion in Cs//2NaBiCl//6
Место публикации : Phys Status Solidi B. - 1984. - Vol. 124, Is. 2. - P.503-513. - ISSN 0370-1972, DOI 10.1002/pssb.2221240208
Примечания : Cited References: 24
Ключевые слова (''Своб.индексиров.''): neutrons - scattering--phonons--phase transition--phonon dispersion--cesium compounds
Аннотация: The structural phase transition (PT) of elpasolite-type crystal Cs//2NaBiCl//6 is investigated by neutron scattering. At first the acoustic phonon dispersion is measured at room temperature for the high-symmetric directions DELTA , SIGMA , and LAMBDA of the Brillouin zone. The transverse rotary mode is studied for phonon wave vectors q parallel as well as perpendicular to DELTA and the dispersion shows a quasi-two-dimensional behavior of the Cl-octahedra rotation. At cooling down to the PT, this branch shows a softening along DELTA , reaching the lowest energies at the zone center. The PT, which is found to be of weakly first order, seems to be driven and triggered by the ferrorotative octahedra mode.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shkuryaev P. G., Vtyurin A. N., Shabanov V. F.
Заглавие : Raman scattering study of incommensurate phase transitions in A2ZnCl4 type ferroelectrics
Место публикации : Ferroelectrics. - 1985. - Vol. 64, Is. 1. - P.157-158. - ISSN 0015-0193, DOI 10.1080/00150198508018712
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : SHAPIRO V. E.
Заглавие : ACCELERATION EFFECT DUE TO SCATTERING ON THERMAL EXCITATIONS
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1985. - Vol. 27, Is. 6. - P1846-1851. - ISSN 0367-3294
Примечания : Cited References: 19
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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : SANDALOV I. S., PODMARKOV A. N.
Заглавие : THE AMPLIFICATION OF THE KONDO EFFECT IN NORMAL METALS BY A MAGNETIC-FIELD
Разночтения заглавия :авие SCOPUS: The amplification of the Kondo effect in normal metals by a magnetic field
Место публикации : JOURNAL OF PHYSICS F-METAL PHYSICS: IOP PUBLISHING LTD, 1986. - Vol. 16, Is. 12. - P2153-2166. - ISSN 0305-4608, DOI 10.1088/0305-4608/16/12/023
Примечания : Cited References: 17
Ключевые слова (''Своб.индексиров.''): electrons - scattering--conduction electron--kondo effect--metals and alloys
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rautian S. G., Safonov V. P., Chubakov P. A., Shalaev V.M., Shtokman M. I.
Заглавие : Surface-enhanced parametric scattering of light by silver clusters
Место публикации : JETP Letters. - 1988. - Vol. 47, Is. 4. - P.243-246. - ISSN 0021-3640
Примечания : Cited References: 6
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sshalaev V. M., Botet R., Jullien R.
Заглавие : Resonant light-scattering by fractal clusters
Место публикации : Phys. Rev. B. - 1991. - Vol. 44, Is. 22. - P.12216-12225. - ISSN 0163-1829, DOI 10.1103/PhysRevB.44.12216
Примечания : Cited References: 19
Предметные рубрики: AEROGELS
OPTICS
Аннотация: A scale-invariant theory of resonant Rayleigh scattering by fractal clusters is developed. Our main result is that the scattering cross section is greatly enhanced, because of the presence of very high local fields, which are correlated and strongly fluctuating. Simulations dealing with two examples of fractal structures, namely, random walk and cluster-cluster aggregates, are presented. The numerical results confirm the theoretical predictions of the scaling behavior for both absorption and scattering, and allow us to obtain the corresponding exponents. In addition to the results for scattering, the large scale of the simulations of the present work provides a comprehensive confirmation and a substantial extension of a recent study by Markel, Muratov, Stockman, and George [Phys. Rev. B 43, 8183 (1991)].
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : PARLINSKI K., CURRAT R., VETTIER C., ALEKSANDROVA I. P., ECKOLD G.
Заглавие : Effect of hydrostatic-pressure on modulated phases in Rb2ZnBr4
Разночтения заглавия :авие SCOPUS: Effect of hydrostatic pressure on modulated phases in Rb2ZnBr4
Место публикации : Phys. Rev. B. - 1992. - Vol. 46, Is. 1. - P.106-114. - ISSN 0163-1829, DOI 10.1103/PhysRevB.46.106
Примечания : Cited References: 36
Предметные рубрики: INCOMMENSURATE PHASES
NEUTRON-SCATTERING
X-RAY
COMMENSURATE
TRANSITIONS
EVOLUTION
MODEL
WAVE
Аннотация: Neutron-diffraction studies on modulated Rb2ZnBr4, carried out under hydrostatic pressure, revealed two new commensurate phases characterized by wave vectors q = 2/7b* and q = 1/4b*, respectively. The first order phase transition between them is revealed by the coexistence of two distinct peaks in the diffraction pattern. The observed pressure-temperature phase diagram contains: the above-mentioned phases, the ferroelectric commensurate phase q = 1/3, and a region characterized by wave-vector values in the interval q = 2/7-1/3. In this region the modulation wave vector exhibits stepwise behavior as a function of pressure, but remains nearly constant iii temperature runs. We have found in this region a characteristic memory effect in which two temperature runs performed at the same pressure lead to two different modulation wave-vector values, while only the thermal history of the sample is different in the two runs. At ambient pressure we confirm the presence of a multipeaked diffraction pattern just above the lock-in transition to the commensurate q = 1/3 phase. At 122 K the phase transition from the 1/3 phase to the 1/4 phase is detected in pressure scans. The transition mechanism involves the q = 2/7 phase, at least as a metastable intermediate phase.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Furrer A., Fisher P., Roessli B., Petrakovskii G. A., Sablina K. A., Valkov V. V., Fedoseev B.
Заглавие : Investigation of spin-waves in single-crystal Bi2CuO4 by inelastic neutron-scattering
Место публикации : Solid State Commun. - 1992. - Vol. 82, Is. 6. - P.443-446. - ISSN 0038-1098, DOI 10.1016/0038-1098(92)90746-V
Примечания : Cited References: 9
Аннотация: Neutron scattering experiments have been employed to study the spin-wave excitations and the critical behaviour of sublattice magnetization of a single crystal Bi2CuO4. Dispersion law for spin waves along the tetragonal axis of crystal is determined. There were found two branches of spin waves which are characterized by the energy gaps DELTA-1 congruent-to 1.7 meV and DELTA-2 congruent-to 4.0 meV, respectively. The value of critical exponent beta = 0.36 + 0.08 reflects the 3D character of the magnetic ordering in Bi2CuO4. Observed two spin-wave branches are described on the basis of the anisotropic tetragonal spin-Hamiltonian with four-sites exchange interaction.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stockman M. I., Shalaev V. M., Moskovits M., Botet R., George T. F.
Заглавие : Enhanced raman-scattering by fractal clusters - scale-invariant theory
Место публикации : Phys. Rev. B. - 1992. - Vol. 46, Is. 5. - P.2821-2830. - ISSN 0163-1829, DOI 10.1103/PhysRevB.46.2821
Примечания : Cited References: 22
Предметные рубрики: AGGREGATION
LIGHT
Аннотация: A scale-invariant theory of Raman scattering of light by fractal clusters is developed. The enhancement factor G(RS) of Raman scattering is shown to scale in terms of a properly chosen spectral variable X. The critical indices of the enhancement factor are found to be determined by the optical spectral dimension of the fractal. Numerical modeling is carried out and shown to support the analytical results obtained. The theory, which does not contain any adjustable parameters, agrees well with experimental data on surface-enhanced Raman scattering over a wide spectral range.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zyryanov V. Ya., Smorgon S. L., Shabanov V. F.
Заглавие : Elongated films of polymer-dispersed liquid crystals as scattering polarizers
Место публикации : Molecular Engineering. - 1992. - Vol. 1, N. 4. - P.305-310
Аннотация: Elongated films of polymer dispersed liquid crystals have been experimentally investigated. The dependence of transmittance light polarization on elongation coefficient and temperature has been studied. The possibilities of practical applications of elongated films of polymer dispersed liquid crystals are discussed.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Flerov I. N., Gorev M. V., Melnikova S. V., Misyul S. V., Voronov V. N., Aleksandrov K. S.
Заглавие : Phase-transitions in elpasolite Rb2KSCF6
Место публикации : Fiz. Tverd. Tela. - 1992. - Vol. 34, Is. 7. - P.2185-2195. - ISSN 0367-3294
Примечания : Cited References: 24
Предметные рубрики: RB2KMIIIF6 ELPASOLITES
CS2NANDCL6
SCATTERING
RB2NADYF6
CS2RBDYF6
RB2KDYF6
CRYSTAL
MODE
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14.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Deich L. I., Ignatchenko V. A.
Заглавие : Polarization properties of elastic-waves in anisotropic disordered media
Коллективы : International Conference on Phonon Scattering in Condensed Matter
Место публикации : Phonon scattering in condensed matter: proceedings: Springer Verlag, 1993. - Vol. 112. - P.231-232. - (Springer series in solid-state sciences). - ISBN 0171-1873. - ISBN 3-540-56395-4
Примечания : Cited References: 0
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15.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Deich L. I.
Заглавие : On far-infrared attenuation in glasses
Место публикации : Phonon scattering in condensed matter: proceedings: Springer Verlag, 1993. - Vol. 112. - P.233-234. - (Springer series in solid-state sciences). - ISBN 0171-1873. - ISBN 3-540-56395-4
Примечания : Cited References: 0
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : PANKRATS A. I., PETRAKOVSKII G. A., SABLINA K. A.
Заглавие : MICROWAVE RESONANCE-ABSORPTION IN ANTIFERROMAGNET BI2CUO4
Место публикации : Solid State Commun.: PERGAMON-ELSEVIER SCIENCE LTD, 1994. - Vol. 91, Is. 2. - P121-124. - ISSN 0038-1098, DOI 10.1016/0038-1098(94)90267-4
Примечания : Cited References: 13
Предметные рубрики: SINGLE-CRYSTAL
NEUTRON-SCATTERING
RANGE
Аннотация: The resonance absorption in Bi2CuO4 single crystals was found in the frequency range 35-80 GHz for H(perpendicular-to)C4 Case and it was absent for H(parallel-to)C4 case. The frequency-field dependence for H(perpendicular-to)C4 case at 4.2 K is typical for easy-plane antiferromagnets with weak magnetic anisotropy in this plane. In contrast to the sublattice magnetization of Bi2CuO4 the resonance parameters depend strongly on the temperature below 20 K. Besides, the resonance field has a considerable jump at TN which ls not typical for second order phase transitions.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ramm A. G., Berman G. P.
Заглавие : Inverse problem for multiple-scattering fast charged-particles in a mesoscopic medium
Место публикации : Phys. Rev. B. - 1995. - Vol. 51, Is. 4. - P.2406-2409. - ISSN 0163-1829, DOI 10.1103/PhysRevB.51.2406
Примечания : Cited References: 11
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deich L. I.
Заглавие : Low-frequency raman-scattering in glasses
Разночтения заглавия :авие SCOPUS: Low-frequency Raman scattering in glasses
Место публикации : Phys. Rev. B. - 1995. - Vol. 51, Is. 13. - P.8131-8139. - ISSN 0163-1829, DOI 10.1103/PhysRevB.51.8131
Примечания : Cited References: 32
Предметные рубрики: AMORPHOUS SOLIDS
VITREOUS SILICA
THERMAL-CONDUCTIVITY
LIGHT-SCATTERING
TEMPERATURE
STATES
MODES
HEAT
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shalaev V. M., Poliakov E. Y., Markel V. A.
Заглавие : Small-particle composites .2. Nonlinear optical properties
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 1996. - Vol. 53, Is. 5. - P2437-2449. - ISSN 0163-1829, DOI 10.1103/PhysRevB.53.2437
Примечания : Cited References: 45
Предметные рубрики: FRACTAL CLUSTERS
RAMAN-SCATTERING
SUSCEPTIBILITY
CONDUCTIVITY
EXCITATIONS
COLLOIDS
LIGHT
Аннотация: Strong fluctuations of local fields may result in very large optical nonlinearities in small-particle composites. Enhancement associated with particle clustering is found for a number of optical processes, including four-wave mixing (FWM), third-harmonic generation (THG), Raman scattering, and nonlinear refraction and absorption in Kerr media. Field fluctuations and optical nonlinear susceptibilities are especially large in fractal clusters. The enhancement of optical processes is expressed in terms of the resonant linear absorption by collective dipolar eigenmodes in a cluster, and quality factors, q, of the modes (q much greater than 1). It is shown that the susceptibility of a composite material consisting of random small-particle clusters is proportional to q(3) for Raman scattering and the Kerr optical nonlinearity, and to q(4) and q(6) for THG and FWM, respectively. For all of these processes, a spectral dependence of the effective susceptibility is found. Broad-scale numerical simulations of the optical response in small-particle composites are performed to complement the theory. The simulations are in reasonable agreement with available experimental data.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Markel V. A., Shalaev V. M., Poliakov E. Y., George T. F.
Заглавие : Numerical studies of second- and fourth-order correlation functions in cluster-cluster aggregates in application to optical scattering
Место публикации : Phys. Rev. E: AMERICAN PHYSICAL SOC, 1997. - Vol. 55, Is. 6. - P7313-7333. - ISSN 1063-651X, DOI 10.1103/PhysRevE.55.7313
Примечания : Cited References: 21
Предметные рубрики: DIFFUSION-LIMITED AGGREGATION
COLLOIDAL AGGREGATION
FRACTAL CLUSTERS
ANTICORRELATION
SIMULATIONS
Аннотация: Two- and four-point density correlation functions p(2)(r) and p(4)(r) are studied numerically and theoretically in computer-generated three-dimensional lattice cluster-cluster aggregates (CCA) with the number of particles N up to 20 000 in application to the light scattering problem. The ''pure'' aggregation algorithm is used, where subclusters of all possible sizes are allowed to collide. We find that large CCA clusters demonstrate pronounced multiscaling. In particular, the fractal dimension determined from the slope of p(2)(r) at small distances differs from that found from the dependence of the radius of gyration on the number of monomers (according to our data, 1.80 and 1.94, respectively). We also consider different functional forms for p(2) and their general properties and applicability. We find that the best fit to the numerical data is provided by the generalized exponential cutoff function with coefficients depending on N. The latter dependence is a manifestation of multiscaling. We propose some theoretical approaches for calculating p(4)(r), assuming p(2)(r) is known. In particular, we find the small-r asymptote for the p(4)(r) and verify it numerically. In addition, we find that p(4)(r) cannot be represented by a scaling dependence with a cutoff function, like p(2)(r) Instead, p(4)(r) is given by an expansion in terms of integer powers of r(2D-3), where D is the fractal dimension (approximate to 1.8 for CCA clusters).
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