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1.


    Averyanov, E. M.
    Relation between orientational order parameters of matrix and probe in nematic liquid-crystals / E. M. Averyanov // Nuovo Cimento Soc. Ital. Fis. D-Condens. Matter At. Mol. Chem. Phys. Fluids Plasmas Biophys. - 1990. - Vol. 12, Is. 9. - P. 1281-1291, DOI 10.1007/BF02450394. - Cited References: 33 . - ISSN 0392-6737
РУБ Physics, Multidisciplinary

Кл.слова (ненормированные):
Liquid crystals -- Phase equilibria, phase transitions and critical points of specific substances

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Держатели документа:
L. V. Kirensky Institute of Physics, USSR Academy of Sciences Siberian Branch, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Аверьянов, Евгений МихайловичAver'yanov; USSR-italy bilateral meeting on liquid crystals(2 ; 1988 ; Sep. 15-21 ; Moscow)
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2.


    Averyanov, E. M.
    Character of the N-D-D-h(0,d) phase transition in diskotic liquid crystals / E. M. Averyanov // JETP Letters. - 1996. - Vol. 63, Is. 1. - P. 33-37, DOI 10.1134/1.566959. - Cited References: 20 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
MOLECULES
   CONSTANTS
   SPLAY
   BEND
Аннотация: The first experimental data on the orientational ordering of a diskotic reentrant nematic N-D are presented. The data show that the phase transition N-D-D-h(0,D-d) is a strong first-order transition with a large jump Delta S similar or equal to 0.2 in the orientational order parameter S of the molecules. This indicates an anomalously strong coupling between the columnar and orientational ordering of the molecules and explains the absence of fluctuational divergence of the elastic moduli K-11 and K-22 in the nematic phase near this transition. (C) 1996 American Institute of Physics.

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Доп.точки доступа:
Aver'yanov, E. M.
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3.


    AVERYANOV, E. M.
    MIXING THE MOLECULAR EXCITATIONS IN MONOAXIAL LIQUID-CRYSTALS / E. M. AVERYANOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1995. - Vol. 108, Is. 1. - P. 258-280. - Cited References: 60 . - ISSN 0044-4510
РУБ Physics, Multidisciplinary
Рубрики:
LOCAL FIELD
   INFRARED DICHROISM
   DISPERSIONS

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4.


    Averyanov, E. M.
    Orientational order and critical-behavior of a discoid nematic liquid-crystal / . M. AVERYANOV // JETP Letters. - 1995. - Vol. 61, Is. 10. - P. 815-820. - Cited References: 14 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
MOLECULES
Аннотация: First experimental data on the orientational order of the molecules in a discoid nematic liquid crystal are reported. These results are dramatically at odds with the results of a numerical simulation for rigid disk-shaped molecules. The N-D-I phase transition is simultaneously close to an isolated Landau critical point and to the tricritical point, as in ordinary calamite nematic liquid crystals with Planckian molecules. This result indicates that conformational degrees of freedom of the molecule play an important role in the features of the N-D-I transition. (C) 1995 American Institute of Physics.

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Доп.точки доступа:
Аверьянов, Евгений МихайловичAver'yanov
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5.


    AVERYANOV, E. M.
    STATIONARY SPECTRUM OF ADMIXED LIQUID-CRYSTAL POLARIZED FLUORESCENCE / E. M. AVERYANOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1994. - Vol. 106, Is. 3. - P. 767-779. - Cited References: 29 . - ISSN 0044-4510
РУБ Physics, Multidisciplinary
Рубрики:
LOCAL FIELD
   SPECTROSCOPY
   PARAMETERS
   DYES

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6.


    Averyanov, E. M.
    Splitting of polarized impurity fluorescence bands in the steady-state spectrum of an isotropic solution / E. M. Averyanov // JETP Letters. - 1994. - Vol. 59, Is. 1. - P. 23-26. - Cited References: 12 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
RELAXATION
Аннотация: A difference is predicted between the peaks, nu(VV) and nu(VH), Of the polarized components J(VV)(nu) and J(VH)(nu) in the steady-state spectrum of impurity fluorescence in an isotropic solution. This difference would result from a temporal correlation between an orientational Brownian diffusion of excited fluorescing molecules and a structural relaxation of the surrounding matrix molecules.

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Доп.точки доступа:
Аверьянов, Евгений МихайловичAver'yanov
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7.


    AVERYANOV, E. M.
    POLARIZED LUMINESCENCE SPECTRUM OF IMPURITY LIQUID-CRYSTAL - THE DEGENERATION LIFTED AND RENEWED BY RELAXATION / E. M. AVERYANOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1993. - Vol. 103, Is. 6. - P. 2018-2038. - Cited References: 45 . - ISSN 0044-4510
РУБ Physics, Multidisciplinary
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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8.


    Averyanov, E. M.
    New features in the structural relaxation of a nematic liquid-crystal doped with luminescent impurity molecules / E. M. Averyanov, V. A. Gunyakov // JETP Letters. - 1993. - Vol. 57, Is. 8. - P. 492-496. - Cited References: 15 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
FLUORESCENCE DEPOLARIZATION
   ORIENTATIONAL RELAXATION
   FLUOROPHORES
Аннотация: A new approach is proposed for interpreting the polarized fluorescence spectra of an impure liquid crystal in which the orientational order of excited impurity molecules has undergone relaxation. This approach has also been realized experimentally. The new experimental data demonstrate a new relaxation process with a time scale on the order of 10(-11)-10(-9) s.

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Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Аверьянов, Евгений МихайловичAver'yanov
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9.


    Averyanov, E. M.
    Giant spectral response of impure nematic liquid-crystal to applied field at freedericksz transition / E. M. Averyanov, V. G. Rumyantsev, V. M. Muratov // JETP Letters. - 1990. - Vol. 51, Is. 5. - P. 320-323. - Cited References: 5 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary


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Доп.точки доступа:
Rumyantsev, V. G.; Muratov, V. M.; Aver'yanov, E. M.
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10.


   
    Specificity of orientation ordering of molecular fragments and the nature of the nematic smectic-A phase-transition in liquid-crystals / E. M. Averyanov, P. V. Adomenas, V. A. Zhuikov, V. Ya. Zyryanov // Zhurnal Eksperimentalnoi Teor. Fiz. - 1986. - Vol. 91, Is. 2. - P. 552-559. - Cited References: 28 . - ISSN 0044-4510
РУБ Physics, Multidisciplinary


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Доп.точки доступа:
Averyanov, E. M.; Аверьянов, Евгений Михайлович; Adomenas, P. V.; Zhuikov, V. A.; Жуйков, Владимир Александрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
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