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Aver'yanov, E. M.
New manifestation of the statistical nature of orientation ordering in impure nematics / E. M. Aver'yanov, V. G. Rumyantsev // JETP Letters. - 2002. - Vol. 76, Is. 1. - P. 40-43, DOI 10.1134/1.1507224. - Cited References: 10 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary

Аннотация: It is found that the splitting of polarized electron absorption bands of impurity dye molecules is inverted with temperature in a nematic liquid-crystal matrix. This effect is caused by the statistical nature of orientation ordering of impurity molecules and by the manifestation of higher order moments of the orientation distribution function. (C) 2002 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Res Inst Organ Intermediate Prod & Dyes, Dolgoprudnyi 141700, Moscow Region, Russia
ИФ СО РАН
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Res. Inst. Organ. Intermediate P., Dolgoprudnyi, 141700, Russian Federation

Доп.точки доступа:
Rumyantsev, V. G.; Аверьянов, Евгений Михайлович
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Aver'yanov, E. M.
Spectral properties of calamitic and discotic nematics, associated with the difference in their local symmetry / E. M. Aver'yanov // Journal of Optical Technology (A Translation of Opticheskii Zhurnal). - 1998. - Vol. 65, Is. 7. - P. 515-523 . - ISSN 1070-9762
Кл.слова (ненормированные):
Crystal symmetry -- Light absorption -- Light polarization -- Resonance -- Calamitic nematics -- Discotic nematics -- Nematic liquid crystals
Аннотация: This paper discusses how the features of the local symmetry of calamitic and discotic nematic liquid crystals, the orientational ordering of the molecules, the polarization of intramolecular transitions, and the resonance intermolecular interactions (local-field effects) affect the polarized absorption spectra of these objects. It is shown that the difference of the local symmetry of calamitic and discotic nematics manifests itself in observable qualitative differences in their spectral properties. The published (controversial) experimental data are explained. В© 1998 The Optical Society of America.

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Доп.точки доступа:
Аверьянов, Евгений Михайлович
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Aver'yanov, E. M.
Spectral properties of calamitic and discotic nematics, associated with the difference in their local symmetry / E. M. Aver'yanov // J. Opt. Technol. - 1998. - Vol. 65, Is. 7. - P. 515-523. - Cited References: 40 . - ISSN 1070-9762

РУБ Optics
Рубрики:
LIQUID-CRYSTALS
ALIGNMENT
Аннотация: This paper discusses how the features of the local symmetry of calamitic and discotic nematic liquid crystals, the orientational ordering of the molecules, the polarization of intramolecular transitions, and the resonance intermolecular interactions (local-field effects) affect the polarized absorption spectra of these objects. It is shown that the difference of the local symmetry of calamitic and discotic nematics manifests itself in observable qualitative differences in their spectral properties. The published (controversial) experimental data are explained. (C) 1998 The Optical Society of America.

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Доп.точки доступа:
Аверьянов, Евгений Михайлович
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Aver'yanov, E. M.
Spectroscopic manifestations of the difference of the local symmetry of calamitic and discoidal nematics / E. M. Aver'yanov // JETP Letters. - 1997. - Vol. 66, Is. 12. - P. 847-852, DOI 10.1134/1.567608. - Cited References: 15 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID-CRYSTALS
Аннотация: It is shown that the difference in the local symmetry of nematics consisting of rod-shaped and disk-shaped molecules is manifested as an observable qualitative difference in their spectroscopic characteristics. The well-known controversial experimental data are explained. (C) 1997 American Institute of Physics. [S0021-3640(97)01124-9].

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Аверьянов, Евгений Михайлович
}
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Averyanov, E. M.
Orientation ordering and critical behavior of discoid nematics / E. M. Averyanov // Zhurnal Eksperimentalnoi Teor. Fiz. - 1996. - Vol. 110, Is. 5. - P. 1820-1840. - Cited References: 55 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID-CRYSTALS
   PHASE-TRANSITION
   ISOTROPIC-PHASE
   LOCAL FIELD
   SMECTIC-A
   MOLECULES
   SUSCEPTIBILITY
   CONFORMATION
   PARAMETER
   DYNAMICS

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Electrically induced anchoring transition in nematics with small or zero dielectric anisotropy / V. S. Sutormin [et al.] // Liq. Cryst. - 2017. - Vol. 44, Is. 3. - P. 577-581, DOI 10.1080/02678292.2016.1225840. - Cited References:23. - This work was supported by Russian Foundation for Basic Research under Grants [15-02-06924 and 16-53-00073] and by the Siberian Branch of Russian Academy of Sciences under Complex Program [II.2P 0358-2015-0010]. V.S.S. acknowledges financial support from Russian Foundation for Basic Research under Grants [16-32-60036 and 16-32-00164]. . - ISSN 0267-8292. - ISSN 1366-5855

РУБ Chemistry, Multidisciplinary + Crystallography + Materials Science,
Рубрики:
LIQUID-CRYSTAL
   IONIC MODIFICATION
   ORIENTATION
   ALIGNMENT
   DROPLETS
Кл.слова (ненормированные):
Nematic -- ionic surfactant -- anchoring transition -- hybrid homeoplanar -- structure -- dielectric anisotropy -- electrooptics
Аннотация: The orientational transitions induced by electrically controlled ionic modification of surface anchoring in liquid crystal cells based on the nematics with small or zero dielectric anisotropy Δε are considered. The type of director reorientation is shown to be independent of the sign of dielectric anisotropy and can be the same for the nematics with both negative and positive Δε. Besides, the orientational transition and corresponding switchable optical states do not depend on the Δε value and can be effectively realised even for the nematics with zero dielectric anisotropy.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk, Russia.

Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research [15-02-06924, 16-53-00073, 16-32-60036, 16-32-00164]; Siberian Branch of Russian Academy of Sciences [II.2P 0358-2015-0010]
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Electrically induced anchoring transitions in nematics with various dielectric anisotropy / V. S. Sutormin [et al.] // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. P48. - Библиогр.: 3 . - Poster

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Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
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Electrically-controlled anchoring transitions in nematics doped with ionic surfactant / V. Ya. Zyryanov [et al.] // 12th Eur. Conf. Liq. Cryst. (ECLC-2013). - 2013. - Ст. O.29

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Материалы конференции

Доп.точки доступа:
Zyryanov, V.Ya.; Зырянов, Виктор Яковлевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; European Conference on Liquid Crystals(12 ; 2013 ; Sept. ; 22-27)
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    Optical textures and orientational structures of nematic and cholesteric droplets with heterogeneous boundary conditions / O. O. Prishchepa [et al.] // Mol. Cryst. Liquid Cryst. - 2008. - Vol. 489, Is. 1. - P. 84-93, DOI 10.1080/15421400802219817. - Cited Reference Count: 17. - Гранты: This work was supported in part by the grants of DSP, No 2.1.1.1814; RFBR, No 0803-01007; Council of the President of the RF for Support of Young Scientists and Leading Scientific Schools (projects NSh-3818-2008.3, MK-3624.2007.2); RAS, No 8.1, 2.10.2; SB RAS, No 33. - Финансирующая организация: DSP [2.1.1.1814]; RFBR [0803-01007]; Young Scientists and Leading Scientific Schools [NSh-3818-2008.3, MK-3624.2007.2]; RAS [8.1, 2.10.2]; SB RAS [33] . - ISSN 1542-1406
Рубрики:
LIQUID-CRYSTAL DROPLETS
   ELECTRIC-FIELD
   BIPOLAR
Кл.слова (ненормированные):
director configuration -- interfaces -- nematic and cholesteric droplets -- surfactant -- Director configuration -- Interfaces -- Nematic and cholesteric droplets -- Surfactant -- Boundary value problems -- Drop formation -- Drops -- Fluid mechanics -- Phospholipids -- Surface active agents -- Boundary conditioning -- Director configuration -- Homeotropic -- Interfaces -- Nematic and cholesteric droplets -- Nematic droplets -- Nematics -- Optical textures -- Orientational structures -- Surface anchoring -- Surfactant -- Boundary conditions
Аннотация: Brief review of the orientational structures within the droplets of chiral as well as achiral nematics with the heterogeneous boundary conditions is reported. The modification of boundary conditions in the 5CB/polyvinylbutyral and LN-396/cholesterylacetate/polyvinylbutyral compositions with the planar anchoring at the interface is created by addition of the homeotropic surfactant (lecithin). Sequences of the novel stable and non-stable orientational structures being realized within the droplets of achiral nematic are presented. For the LN-396 nematic droplets doped by cholesterylacetate the formation of a spherulite structure has been shown when the tangential surface anchoring is modified to the homeotropic one.

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Держатели документа:
Siberian Fed Univ Krasnoyarsk, Krasnoyarsk Sci Ctr, SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
L.V. Kirensky Institut of physics

Доп.точки доступа:
Prishchepa, O. O.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Gardymova, A. P.; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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10.

Parshin, A. M.
Self-organized ensembles of nematic domains in magnetic and electric fields / A. M. Parshin, V. Y. Zyryanov, V. F. Shabanov // Phys. Rev. E. - 2022. - Vol. 106, Is. 2. - Ст. 024703, DOI 10.1103/PhysRevE.106.024703. - Cited References: 33 . - ISSN 2470-0045
Кл.слова (ненормированные):
Cell membranes -- Electric fields -- Free energy -- Nematic liquid crystals -- Optical properties -- Electrooptical properties -- Glass plate -- Liquid-crystals -- Magnetic and electric fields -- Magnetic-field -- Magneto-optical -- Nematics -- Polycarbonate films -- Residual solvents -- Self-organised
Аннотация: The structural and magneto- and electro-optical properties of a self-organized ensemble of nematic domains formed on a polycarbonate film in the presence of a residual solvent are studied. The film covered one of the plane-parallel glass plates of a liquid crystal cell. The magnetic field stabilizing the planar alignment of the liquid crystal was applied parallel to the cell surfaces and the reorienting electric field, perpendicular to them. The voltage dependences of the intensity of light transmitted through the domain ensemble were obtained at different constant values of the magnetic field. The comparison of the experimental dependences with the dependences calculated using the liquid crystal free-energy minimization procedure has shown good agreement between them. The mutual effect of structural elements of the ensemble and the effects of phase modulation of light are analyzed by comparing the structural, magnetic, and electric coherence lengths.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Паршин, Александр Михайлович
}
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