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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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Korshunov A. V., Spiridonov V. P., Shabanov V. F.
Заглавие : An investigation of the temperature dependence of the low frequency raman spectrum of a crystal of Ba(NO3)2
Место публикации : J. Appl. Spectrosc. - 1973. - Vol. 18, Is. 5. - P.677–678. - ISSN 00219037 (ISSN), DOI 10.1007/BF00609342
Примечания : Cited References: 13
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Amitin L. N., Anistratov A. T., Kuznetsov A. I.
Заглавие : Comparison of the electronic-structure of CSPbCl3, PBCL2, and CSCaCl3 on the basis of optical spectroscopy data
Место публикации : Phys. Status Solidi B. - 1980. - Vol. 101, Is. 1. - PK65-K73. - ISSN 0370-1972, DOI 10.1002/pssb.2221010160
Примечания : Cited References: 10
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Buznik V. M., Vopilov V. A., Livshits A. I.
Заглавие : Nuclear magnetic resonance study of solid electrolytes
Коллективы : Soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials, Академия наук СССР, Indian national academy of sciences, Академия наук Таджикской ССР
Место публикации : Proceedings of the 1st soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials. - Dushanbe, 1982. - P.66-67
Примечания : Библиогр.: 0
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zobov V. E., Moskvich Yu. N., Ponomarenko A. V.
Заглавие : Nonequidistant multipulse sequence for study of slow atomic motions in solids
Коллективы : Soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials, Академия наук СССР, Indian national academy of sciences, Академия наук Таджикской ССР
Место публикации : Proceedings of the 1st soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials. - Dushanbe, 1982. - P.204-205
Примечания : Библиогр.: 5
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Falaleev O. V., Kukhlevsky O. P., Keeperman E. M.
Заглавие : Fine srtucture of PMR line shape in Ca(OH)2 single crystal
Коллективы : Soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials, Академия наук СССР, Indian national academy of sciences, Академия наук Таджикской ССР
Место публикации : Proceedings of the 1st soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials. - Dushanbe, 1982. - P.72-73
Примечания : Библиогр.: 4
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aleksandrov K. S., Ivanov Y. N., Schafer A. D.
Заглавие : Spectroscopic investigation of phase transitions in CsLiMoO//4 crystals.
Коллективы : European Meeting on Ferroelectricity
Место публикации : European Meeting on Ferroelectricity (5 ; 1983 ; Sept. ; 26-30 ; Malaga, Sp). Ferroelectrics. - 1983. - Vol. 55, Is. 1. - P.671-674. - ISSN 0015-0193
Ключевые слова (''Своб.индексиров.''): crystals - structure--magnetic resonance--spectroscopy, raman--cesium lithium molybdate--phase transitions--ferroelectric materials
Аннотация: Raman and NMR spectra in cubic and two distorted phases of CsLiMoO//4 have been studied. Phase transitions in the crystal are shown to belong to order-disorder type.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shabanov V. F., Shkuryaev P. G., Vtyurin A. N.
Заглавие : Spectroscopy of the raman effect in disproportioned ferroelectrics of the K2SEO4-type
Место публикации : Izvestiya Akademii Nauk SSSR Seriya Fizicheskaya. - 1984. - Vol. 48, Is. 4. - P.765-770. - ISSN 0367-6765
Примечания : Cited References: 20
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kodirov M. K., Popov A. K., Slabko V. V., Yakhnin V. Z.
Заглавие : Atom-density distribution in a metal vapor cell studied by 3rd-harmonic generation
Разночтения заглавия :авие SCOPUS: Atom-density distribution in a metal vapor cell studied by third-harmonic generation
Место публикации : Appl. Phys. B. - 1988. - Vol. 45, Is. 1. - P.47-52. - ISSN 0721-7269, DOI 10.1007/BF00692341
Примечания : Cited References: 20
Ключевые слова (''Своб.индексиров.''): 42.65--42.80--cesium and alloys - applications--light - nonlinear optical effects--spectroscopy - measurements--atom-density distribution--cesium vapors--metal vapor cell--third-harmonic generation--vapors
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deich L. I., Ignatchenko V. A.
Заглавие : Phonon spectroscopy of inhomogeneities in disordered solids
Разночтения заглавия :us: Phonon spectroscopy of inhomogeneties in disordered solids
Место публикации : Solid State Commun. - 1991. - Vol. 80, Is. 10. - P.881-884. - ISSN 0038-1098, DOI 10.1016/0038-1098(91)90525-Z
Примечания : Cited References: 15
Предметные рубрики: SPIN-WAVES
AMORPHOUS FILMS
DISPERSION
FERROMAGNETS
Аннотация: A possibility to use elastic waves for investigation of inhomogeneities corresponding in size to intermediate order in disordered solids is considered. It is shown that frequency dependencies of phase and group velocities of the elastic waves have some peculiarities which give the possibilities to find the characteristic size of inhomogenities and to determine the parameter of a matter whose fluctuations are most significant for the phenomena under study.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : AVERYANOV E. M.
Заглавие : POLARIZED LUMINESCENCE SPECTRUM OF IMPURITY LIQUID-CRYSTAL - THE DEGENERATION LIFTED AND RENEWED BY RELAXATION
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz.: MEZHDUNARODNAYA KNIGA, 1993. - Vol. 103, Is. 6. - P2018-2038. - ISSN 0044-4510
Примечания : Cited References: 45
Предметные рубрики: RESOLVED FLUORESCENCE DEPOLARIZATION
UNIAXIAL MOLECULAR SAMPLES
NEMATIC ORDER PARAMETERS
EXCITED-STATES
SPECTROSCOPY
MEMBRANES
FLUOROPHORES
ORIENTATION
TRANSITION
DYES
Аннотация: The general molecular-statistical approach is proposed for the analysis or the polarized luminescence spectrum for impurity molecule of an arbitrary symmetry in the nematic liquid crystal matrix. On the particular example of uniaxial molecules the influence of features of the molecular electron structure, orientational statistics, molecular dynamics, and features of the anisotropic intermolecular coupling upon the positions of maxima v(if)(t) of impurity fluorescence polarized bands J(ij)(t) is studied. For the first time it is shown that all these factors significantly affect the degree of spectrum v(ij)(t) degeneration. For t not-equal 0, relaxation of excited impurity molecule subsystem toward the orientational distribution lifts a partial degeneration of spectrum v(ij), occuring at t not-equal 0, and renews partial or total degeneration of spectrum v(ij) in the limit t = infinity. In the lack of the spectrum v(ij) degeneration for t = 0 the relaxation may restore partial degeneration for t not-equal 0 as a function of the features of electron structure of molecules. The results of work explain the familiar experimental data on the number of independent component v(ij) and relation between them, on dependence of v(ij) upon the order of matrix and impurity subsystem, on the mutual relation in the positions of impurity band polarized component in the absorption and fluorescence spectra.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ovchinnikov S. G.
Заглавие : Density of hole-doped states in strongly correlated electron-systems of copper oxides
Разночтения заглавия :авие SCOPUS: Density of hole-doped states in strongly correlated electron systems of copper oxides
Место публикации : Phys. Rev. B. - 1994. - Vol. 49, Is. 14. - P.9891-9897. - ISSN 0163-1829, DOI 10.1103/PhysRevB.49.9891
Примечания : Cited References: 34
Предметные рубрики: DYNAMIC PROPERTIES
SUPERCONDUCTIVITY
GAP
LA2CUO4
BI2SR2CACU2O8
PHOTOEMISSION
SPECTROSCOPY
SPECTRA
MODEL
BAND
Аннотация: A generalized tight-binding method to calculate quasiparticle band structure and density of states in strongly correlated systems is presented. The band structures of undoped and weakly hole-doped CuO2 layer are calculated. The insulator gap has a charge transfer nature with a minor contribution from a Cu-O Coulomb interaction. Doping results in the appearance of an in-gap state with a simultaneous decrease of the density of states at the band edges in agreement with small cluster results and experimental data.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : AVERYANOV E. M.
Заглавие : STATIONARY SPECTRUM OF ADMIXED LIQUID-CRYSTAL POLARIZED FLUORESCENCE
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz.: MEZHDUNARODNAYA KNIGA, 1994. - Vol. 106, Is. 3. - P767-779. - ISSN 0044-4510
Примечания : Cited References: 29
Предметные рубрики: LOCAL FIELD
SPECTROSCOPY
PARAMETERS
DYES
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ovchinnikov S. G., Avramov P. V.
Заглавие : Effects of intense electron correlations on x-ray and x-ray electron copper spectra of high-temperature superconductors
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1995. - Vol. 37, Is. 9. - P.2559-2567. - ISSN 0367-3294
Примечания : Cited References: 22
Предметные рубрики: HIGH-ENERGY SPECTROSCOPY
HIGH-TC SUPERCONDUCTORS
SATELLITES
LA2CUO4
OXIDES
HOLES
STATE
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15.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Arkhipkin V. G., Timofeev I. V.
Заглавие : Propagation of two short pulses under conditions of electromagnetically induced transparency: adiabatic following
Коллективы : International Workshop/Fall School Meeting for Young Scientists and Students on Optics, Laser Physics, and Biophysics (Saratov Fall Meeting 99) (1999 ; Oct.; Saratov)
Место публикации : Saratov fall meeting '99: Laser physics and spectroscopy. Ser. Proceedings of the society of photo-optical instrumentation engineers (SPIE): SPIE-Int. Soc. Optical Engineering, 2000. - Vol. 4002. - P.45-51. - ISBN 0277-786X, DOI 10.1117/12.380132. - ISBN 0-8194-3627-5
Примечания : Cited References: 31
Предметные рубрики: POPULATION TRANSFER
LASER-PULSES
QUANTUM
COHERENCE
MEDIA
INDEX
INTERFERENCE
ENHANCEMENT
TRANSITIONS
REFRACTION
Ключевые слова (''Своб.индексиров.''): electromagnetically-induced transparency--coherent population trapping--atomic coherence--quantum interference--adiabatic following--dressed field pulses
Аннотация: Spatio-temporal dynamics of two short laser pulses propagating in an absorbing medium, which consists of one-and two-photon resonant ii-atoms, is investigated in the adiabatic approximation. We give an analytical solution and compare it with numerical simulations. It is shown that pulses may propagate in a medium, whose thickness is considerably greater than the length of the linear absorption of a single weak probe wave. Finally, full transfer of the probe pulse energy into the coupling pulse takes place. A vector model of the adiabatic interaction of two pulses with three-level atom is proposed.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vtyurin A. N., Bulou A., Krylov A. S., Shmygol I. V., Aleksandrov K. S.
Заглавие : Raman scattering study of the upper phase transition in CsScF4
Место публикации : Journal of Raman Spectroscopy. - 2000. - Vol. 31, Is. 3. - P.151-155. - ISSN 0377-0486, DOI 10.1002/(SICI)1097-4555(200003)31:3151::AID-JRS5103.0.CO;2-T
Ключевые слова (''Своб.индексиров.''): article--crystal--heating--high temperature--melting point--neutron scattering--phase transition--photon--raman spectrometry--temperature dependence
Аннотация: Effects of the phase transition between the high-temperature tetragonal phases of the CsScF4 crystal were studied by Raman scattering. The appearance of new lines including a soft mode was observed below the phase transition point, in complete accordance with the new crystal symmetry. The behavior of the soft mode, which corresponds to in-phase rotations of ScF6 rigid groups around the z-axis (and out-of-phase within perovskite-like layers), resembles that observed earlier in RbAlF4, which suggests a similar mechanism of this transition in both crystals. Copyright (C) 2000 John Wiley and Sons, Ltd.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Avramov P. V., Ovchinnikov S. G.
Заглавие : Effects of strong electron correlations in X-ray and electron spectra of high-T-c superconductors
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2000. - Vol. 42, Is. 5. - P788-809. - ISSN 1063-7834, DOI 10.1134/1.1131293
Примечания : Cited References: 92
Предметные рубрики: HIGH-TEMPERATURE SUPERCONDUCTORS
COPPER-OXIDE SUPERCONDUCTORS
MULTIPLE-SCATTERING ANALYSIS
HIGH-ENERGY SPECTROSCOPY
ABSORPTION-SPECTRA
PHOTOELECTRON-SPECTRA
EDGE STRUCTURE
PHOTOEMISSION SPECTRA
INCOMPLETE SHELL
SINGLE-CRYSTAL
Аннотация: The current state of theoretical and experimental studies on the electronic structure of high-T-c superconductors is analyzed. The agreement between the theory and experimental spectroscopic data is shown to be rather poor in certain cases. The reason is that the X-ray and electronic spectra reveal strong electron correlations. At the same time, no realistic model has been developed up to now in which both one-electron and multielectron mechanisms of the formation of the spectra could be described in a unified way in compounds containing transition and rare-earth elements. In this paper, particular attention is paid to a sudden-perturbation model, by which it has been possible to describe or interpret some X-ray and electronic spectra, including both one-electron and multielectron effects. (C) 2000 MAIK "Nauka/Interperiodica".
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S.
Заглавие : Static and dynamic magnetic properties of coupled spin-1/2 antiferromagnetic chains
Место публикации : J. Phys.: Condens. Matter: IOP PUBLISHING LTD, 2000. - Vol. 12, Is. 37. - P.8191-8207. - ISSN 0953-8984, DOI 10.1088/0953-8984/12/37/316
Примечания : Cited References: 21
Предметные рубрики: ONE-DIMENSIONAL ANTIFERROMAGNETS
SYSTEMS
SUSCEPTIBILITY
EXCITATIONS
SR2CUO3
CA2CUO3
KCUF3
Ключевые слова (''Своб.индексиров.''): computational methods--copper compounds--correlation methods--functions--magnetic field effects--magnetic properties--magnetization--monte carlo methods--quantum theory--specific heat--thermal effects--excitation spectroscopy--interchain coupling--intrachain couplings--mean-field approximation--spin-spin correlation function--spinons--antiferromagnetic materials
Аннотация: Calculations of the thermodynamic quantities, and the spectra of spinons, triplet excitations, and two-particle spin-singlet (Delta S-z = 0, +/- 1) excitations for a weakly coupled antiferromagnetic S = 1/2 spin chain are made using a mean-field approximation for the interchain couplings (J(2)) by the quantum Monte Carlo method. The mass gaps in these excitation spectra are estimated as functions of the interchain coupling. The critical held H-c, and the temperatures at which the spinon and singlet gaps close (T-1 and T-2, respectively) are obtained. Some peculiarities of the staggered magnetization, the specific heat, and the spin-spin correlation function are found at T-1 = 0.9J(2), T-2 = 1.5J(2), H-c = 3.8J(2), as determined by linear function fitting for J(2)/J(1) 0.15 The intrachain and interchain couplings, and the staggered magnetization for KCuF3, Sr2CuO3, and Ca2CuO3 are estimated, and mass gaps are predicted to exist in the spectra of the spinons and the singlet two-particle excitations.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Arkhipkin V. G., Timofeev I. V.
Заглавие : Inversion in an extended three-level medium produced by adiabatic population transfer
Место публикации : Opt. Spectrosc.: Optical Society of America, 2001. - Vol. 91, Is. 5. - P.810-814. - ISSN 0030-400X, DOI 10.1134/1.1420867
Примечания : Cited References: 17
Предметные рубрики: ELECTROMAGNETICALLY INDUCED TRANSPARENCY
MULTILEVEL SYSTEMS
LASER-PULSES
3-LEVEL
Аннотация: Features of the adiabatic population transfer are studied with the spatial evolution of interacting pulses propagating in an optically dense medium of three-level A-atoms taken into account. A self-consistent analytical solution describing the spatial-temporal dynamics of interacting short pulses under the conditions of adiabatic population transfer is constructed in the adiabatic approximation with consideration for the first nonadiabatic correction. Practically complete inversion on a forbidden transition determined by coherent (adiabatic) population transfer is shown to take place over a length of the medium, which may exceed the absorption length of a weak probing pulse in the absence of control radiation on the adjacent transition by several orders of magnitude. (C) 2001 MAIK "Nauka/Interperiodica".
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Peng J. L., Bulcock S., Belobrov P. I., Bursill L. A.
Заглавие : Surface bonding states of nano-crystalline diamond balls
Место публикации : Int. J. Mod. Phys. B: WORLD SCIENTIFIC PUBL CO PTE LTD, 2001. - Vol. 15, Is. 31. - P4071-4085. - ISSN 0217-9792, DOI 10.1142/S0217979201007865
Примечания : Cited References: 20
Предметные рубрики: PLASMON RESPONSE
POWDER
SPECTROSCOPY
MICROSCOPY
SILICON
SI(111)
Ключевые слова (''Своб.индексиров.''): diamond--article--crystal structure--electron--energy transfer--nanoparticle--particulate matter--structure analysis--surface property--transmission electron microscopy
Аннотация: The rough surface of nano-crystalline diamond spheres induces surface electronic states which appear as a broadened pre-peak over approx. 15 eV at the C K-edge energy threshold for carbon in the parallel electron energy loss spectrum (PEELS). This appears to be at least partially due to 1s-pi* transitions, although typically the latter occupy a range of only 4 eV for the sp(2) edge of highly-oriented pyrollytic graphite (HOPG). No pi* electrons appear in the conduction band inside the diamond particles, where all electrons are sp(3) hybridized. PEELS data were also obtained from a chemical vapour deposited diamond film (CVDF) and gem-quality diamond for comparison with the spectra of nano-diamonds. The density of sp(2) and sp(3) states on the surface of diamond nano-crystals is calculated for simple structural models of the diamond balls, including some conjecture about surface structures. The results are used to interpret the sp(2)/sp(3) ratios measured from the PEELS spectra recorded as scans across the particles. Surface roughness at the atomic scale was also examined using high-resolution transmission electron microscopy (HRTEM) and electron nano-diffraction patterns were used to confirm the crystal structures.
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