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1.
Raman
scattering study
of SrTiO3: Bi ceramics with higher (x = 0.16) bismuth content / S. N. Krylova [et al.]> //
3th Int. Conf. "Scanning Probe Microscopy". 4th Russia-China Workshop on Dielectric and Ferroel. Mater. (SPM-2019-RCWDFM). Int. Youth Conf. "Functional Imaging of Nanomaterials" : Abstract book of joint int. conf. - 2019. - Ст. P62. - P. 188. - Cited References: 2 . - ISBN 978-5-9500624-2-1
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian Federal University
Xi’an Jiaotong University
Доп.точки доступа:
Krylova, S. N.; Крылова, Светлана Николаевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Wei, X.; Chen, W.; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Scanning Probe Microscopy, International Conference(3 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); Russia-China Workshop on Dielectric and Ferroelectric Materials(4 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); "Functional Imaging of Nanomaterials", International Youth Conference(2019 ; Aug. ; 25-28 ; Ekaterinburg)
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2.
Cubic to cubic
phase transition in (NH4)3SnF7 ferroelastic crystal–
Raman
scattering study / A. N. Vtyurin [et al.]> //
3th Int. Conf. "Scanning Probe Microscopy". 4th Russia-China Workshop on Dielectric and Ferroel. Mater. (SPM-2019-RCWDFM). Int. Youth Conf. "Functional Imaging of Nanomaterials" : Abstract book of joint int. conf. - 2019. - Ст. P182. - P. 285. - Cited References: 1. - This work was supported by Russian Foundation for Basic Research (Grant N 17-02-00920) . - ISBN 978-5-9500624-2-1
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian Federal University
Institute of Chemistry, Far Eastern Branch of RAS
Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Gerasimova, Y. V.; Герасимова, Юлия Валентиновна; Krylov, A. S.; Крылов, Александр Сергеевич; Laptash, N. M.; Krylova, S. N.; Крылова, Светлана Николаевна; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Scanning Probe Microscopy, International Conference(3 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); Russia-China Workshop on Dielectric and Ferroelectric Materials(4 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); "Functional Imaging of Nanomaterials", International Youth Conference(2019 ; Aug. ; 25-28 ; Ekaterinburg)
}
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3.
Structural phase transitions
in elpasolite-like fluorides comprising rare earth elements –
Raman
scattering study / A. N. Vtyurin [et al.]> //
3th Int. Conf. "Scanning Probe Microscopy". 4th Russia-China Workshop on Dielectric and Ferroel. Mater. (SPM-2019-RCWDFM). Int. Youth Conf. "Functional Imaging of Nanomaterials" : Abstract book of joint int. conf. - 2019. - P. 29 . - ISBN 978-5-9500624-2-1
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Voronov, V. N.; Воронов, Владимир Николаевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Scanning Probe Microscopy, International Conference(3 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); Russia-China Workshop on Dielectric and Ferroelectric Materials(4 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); "Functional Imaging of Nanomaterials", International Youth Conference(2019 ; Aug. ; 25-28 ; Ekaterinburg)
}
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4.
Raman
spectroscopy study
of the switchable phases metal-organic frameworks DUT-8(Ni) / A. S. Krylov [et al.]> //
3th Int. Conf. "Scanning Probe Microscopy". 4th Russia-China Workshop on Dielectric and Ferroel. Mater. (SPM-2019-RCWDFM). Int. Youth Conf. "Functional Imaging of Nanomaterials" : Abstract book of joint int. conf. - 2019. - Ст. P60. - P. 186. - Cited References: 3. - Acknowledgments: I.S.,V.B., S.K. thank the DFG for financial support (FOR 2433); A.K., S.K., A.V. thank the Russian Foundation for Basic Research for financial support (18-02-00754) . - ISBN 978-5-9500624-2-1
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Technische University Dresden
Siberian Federal University
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Senkovska, I.; Bon, V.; Kaske, S.; Slysareva, E. A.; Krylova, S. N.; Крылова, Светлана Николаевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Уральский федеральный университет им. первого Президента России Б.Н. Ельцина; Scanning Probe Microscopy, International Conference(3 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); Russia-China Workshop on Dielectric and Ferroelectric Materials(4 ; 2019 ; Aug. ; 25-28 ; Ekaterinburg); "Functional Imaging of Nanomaterials", International Youth Conference(2019 ; Aug. ; 25-28 ; Ekaterinburg)
}
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5.
Dumping soft modes
in
Raman
spectra of antiferroelectric (Pb-La)(Zr-Sn-Ti)O3 ceramics / A. N. Vtyurin [et al.]> //
Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM : Abstract book. - 2019. - P. 694. - Cited References: 3
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian Federal University
Xi’an Jiaotong University
Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Wei, Xiaoyong; Feng, Yujun; Xu, Ran; Zhao, Tian; IEEE International Symposium on Applications of Ferroelectrics(2019 ; July ; 14-19 ; Lausanne, Switzerland); International Conference on ElectroCeramics(2019 ; July ; 14-19 ; Lausanne, Switzerland); European Meeting on Ferroelectricity(14 ; 2019 ; 14-19 July ; Lausanne, Switzerland); International Workshop on PiezoMEMS(2019 ; July ; 14-19 ; Lausanne, Switzerland); Piezoresponse Force Microscopy Workshop(2019 ; July ; 14-19 ; Lausanne, Switzerland)
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6.
Magnetic circular dichroism
in the canted antiferromagnet α-Fe2O3: bulk single crystal and nanocrystals / R. Ivantsov [et al.]> // J. Magn. Magn. Mater. - 2020. -
Vol. 498
. - Ст. 166208,
DOI
10.1016/j.jmmm.2019.166208. - Cited References: 60. - The authors thank S.L. Sukhachev for help in conducting absorption experiments and S.G. Ovchinnikov for fruitful discussions. The work is supported by Russian Academy of Sciences in the frame of the Project № 0356-2017-0030. . - ISSN 0304-8853. - ISSN 1873-4766
Перевод заглавия:
Круговой магнитный дихроизм в антиферромагнетике α-Fe2O3: объемный монокристалл и нанокристаллы
Кл.слова (ненормированные):
Hematite
--
α-Fe2O3
--
optical absorption
--
magnetic circular dichroism
--
ellipsometric parameters
--
Raman
scattering
--
one-ion d-d transitions
--
pare exciton-magnon transitions
Аннотация:
Hematite, α-Fe2O3, is a canted antiferromagnet with the Neel temperature of 960 K. The Morin transition, which occurs when the temperature is lowered to ∼260 K, when the magnetic moments of the sublattices become strictly antiparallel to each other and the resulting magnetic moment disappears, is a characteristic feature of this compound. Detailed investigations are presented here of the magneto-optical effects in the α-Fe2O3 nanoparticles in the transmitted light and in the α-Fe2O3 single crystal in the reflected light. Two types of magneto-optic features were revealed in the magnetic circular dichroism (MCD) spectrum. Some of them described by the Gauss line shape were associated with one-ion d-d transitions. Others were described by the S-shaped line with the inflection points corresponding to the absorption maxima. Last features were assigned to the pair exciton-magnon transitions. An exceptionally strong S-shaped line at 2.0-2.5 eV appeared to be a unique feature of α-Fe2O3 distinguishing it from other iron oxide compounds. The origin of the high effectiveness of the pair exciton-magnon interaction giving rise to this strong S-shaped feature in the MCD spectrum of α-Fe2O3 is discussed.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk,660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
Доп.точки доступа:
Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Ivanova, O. S.; Иванова, Оксана Станиславовна; Zharkov, S. M.; Жарков, Сергей Михайлович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Gudim, I. A.; Гудим, Ирина Анатольевна; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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7.
Features of
Raman
spectra in barium titanate pressed powder / I. V. Zaytseva [et al.]> // IOP Conf. Ser.: Mater. Sci. Eng. - 2019. -
Vol. 699
,
Is. 1
. - Ст. 012058,
DOI
10.1088/1757-899X/699/1/012058. - Cited References: 16. - The reported study was funded by RFBR according to the research projects No. 19-42-543-016 and 18-02-00399 and State assignment No AAAA-A17-117052410033-9. The experiments were performed in the multiple-access centre “High-Resolution Spectroscopy of Gases and Condensed Matter” in IA&E SBRAS (Novosibirsk, Russia) and Centre for Common Use of the Krasnoyarsk Scientific Centre, SBRAS (Krasnoyarsk, Russia). . - ISSN 1757-8981. - ISSN 1757-899X
Перевод заглавия:
Особенности спектров комбинационного рассеяния в прессованном порошке титаната бария
Аннотация:
Raman
spectra in barium titanate powder under non-hydrostatic pressures are presented. The relationship between the pressure (up to 11 GPa) and the shift and the width of E(TO)-phonon line has been established. It has been found that under the action of uniaxial pressure a new
Raman
peak arises in the vicinity of 100 cm−1. It is shown that the
Raman
shift and width of both peaks increase depending on the applied pressure. These
Raman
lines broadening may be associated with an increase of the concentration of defect states in the volume of the sample.
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Держатели документа:
Institute of Automation and Electrometry SB RAS, 630090 Novosibirsk, Russia
Kirensky Institute of Physics Federal Research Centre KSC SB RAS, 660036 Krasnoyarsk, Russia
Доп.точки доступа:
Zaytseva, I. V.; Pugachev, A. M.; Surovtsev, N. V.; Krylov, A. S.; Крылов, Александр Сергеевич; SPM-2019-RCWDFM Joint International Conference (3rd International Conference "Scanning Probe Microscopy" (SPM), the 4th Russia-China Workshop on Dielectric and Ferroelectric Materials (RCWDFM), and International Youth Conference "Functional Imaging of Nanomaterials")(25-28 August 2019 ; Ekaterinburg, Russia)
}
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8.
Switchable phases of
metal-organic frameworks DUT-8(Ni):
Raman
spectroscopy study / A. S. Krylov [et al.]> //
Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM : Abstract book. - 2019. - P. 408. - Cited References: 3. - I.S.,V.B., S.K. thank the DFG for financial support (FOR 2433); A.K., S.K., A.V. thank the Russian Foundation for Basic Research for financial support (18-02-00754)
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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian Federal University
Technische Universitдt Dresden
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Senkovska, I.; Bon, V.; Kaske, S.; Slysareva, E. A.; Krylova, S. N.; Крылова, Светлана Николаевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; IEEE International Symposium on Applications of Ferroelectrics(2019 ; July ; 14-19 ; Lausanne, Switzerland); International Conference on ElectroCeramics(2019 ; July ; 14-19 ; Lausanne, Switzerland); European Meeting on Ferroelectricity(14 ; 2019 ; 14-19 July ; Lausanne, Switzerland); International Workshop on PiezoMEMS(2019 ; July ; 14-19 ; Lausanne, Switzerland); Piezoresponse Force Microscopy Workshop(2019 ; July ; 14-19 ; Lausanne, Switzerland)
}
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9.
Dielectric and
Raman
spectroscopy measurements across structural phase transition in multiferroic HoFe3(BO3)4 single crystal / A. Tripathy [et al.]> //
AIP Conf. Proc. - 2019. -
Vol. 2162
: International Conference on Advanced Materials, ICAM 2019. - Ст. 020062,
DOI
10.1063/1.5130272. - Cited References: 10. - DKS acknowledges support from the DST, New Delhi, India through the grant no INI/RUS/RFBR/P-269 (Indo Russian project). K.G. thanks, Council of Scientific and Industrial Research, New Delhi, India, for support in the form of SRF.
Аннотация:
We report on findings in the HoFe3(BO3)4 single crystal across structural phase transition by the dielectric and
Raman
spectroscopic measurements. In most of the compounds of RFe3(BO3)4 (R=La-Lu) family low temperature P3121 structure is introduced through structural phase transition (from space group R32). Temperature dependent dielectric measurements on the HoFe3(BO3)4 crystal depicts a step like feature at the structural phase transition at ?366 K. The
Raman
spectroscopy study also confirms the structural transition around this temperature. A clear signature of structural transition is reflected in the
Raman
spectra, mainly in the frequency range (200-400 cm-1). Appearance of new
Raman
modes below the transition temperature also indicates that the transition is from a high symmetry phase to a low symmetry phase.
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Держатели документа:
UGC-DAE Consortium for Scientific Research, Indore, 452001, India
Department of Physics, Aligarh Muslim University, Aligarh, 202002, India
L. V. Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Tripathy, A.; Gautam, K.; Dey, K.; Ahad, A.; Gudim, I. A.; Гудим, Ирина Анатольевна; Sathe, V. G.; Shukla, D. K.; International Conference on Advanced Materials(12-14 June 2019 ; Kannur, India)
}
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10.
Microwave sol-gel synthesis,
microstructural and spectroscopic properties of scheelite-type ternary molybdate upconversion phosphor NaPbLa(MoO4)3:Er3+/Yb3+ / C. S. Lim [et al.]> // J. Alloys Compd. - 2020. -
Vol. 826
. - Ст. 152095,
DOI
10.1016/j.jallcom.2019.152095. - Cited References: 53. - This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2018R1D1A1A09082321). This study was supported by the Russian Science Foundation (19-42-02003, in part of conceptualization). Also, this study was supported by RFBR (18-32-20011, 18-03-00750). . - ISSN 0925-8388. - ISSN 1873-4669
Перевод заглавия:
Микроволновый золь-гель синтез, микроструктурные и спектроскопические свойства апконверсионного люминофора тройного молибдата NaPbLa(MoO4)3:Er3+/Yb3+ со структурой шеелита
Кл.слова (ненормированные):
Optical materials
--
Chemical synthesis
--
Molybdate
--
Raman
spectroscopy
--
X-ray diffraction
--
Phosphors
Аннотация:
New ternary molybdate NaPbLa(1-x-y)(MoO4)3:xEr3+,yYb3+ (x = y = 0, x = 0.05 and y = 0.35, 0.4, 0.45 and 0.5) phosphors were successfully fabricated by the MSG (microwave sol-gel) method, and the microstructural and spectroscopic properties were characterized. The crystal structure of NaPbLa(MoO4)3 (NPLM) was defined by Rietveld analysis in space group I41/a with unit cell parameters a = 5.3735(2) and c = 11.8668(4) Å, V = 342.65(3) Å3, Z = 4 (RB = 6.64%). The unit cell volume of NaPbLa(MoO4)3 (NPLM) was intermediate between those of NaLa(MoO4)2 and PbMoO4. Under the 980 nm excitation, upconverted yellowish-green emissions at transitions from 2H11/2 and 4S3/2 were observed. No concentration quenching in the subsystem of donor ions at the content up to 50 at.% and no cross-relaxation losses in the subsystem of acceptor ions at the concentrations as high as 5 at. % were verified. The individual chromaticity points for the NaPbLa(MoO4)3:Er3+,Yb3+ phosphors, corresponding to the equal-energy point in the standard CIE diagram, revealed yellowish-green emissions.
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Держатели документа:
Department of Aerospace Advanced Materials & Chemical Engineering, Hanseo University, Seosan, 356-706, Republic of Korea
Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, 660041, Russia
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, 630090, Russia
Functional Electronics Laboratory, Tomsk State University, Tomsk, 634050, Russia
Research and Development Department, Kemerovo State University, Kemerovo, 650000, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russia
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Доп.точки доступа:
Lim, Chang Sung; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Atuchin, V. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич
}
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11.
Phase transitions in
Rb2KLuF6 crystal / A. S. Krylov [et al.]> //
Ferroelectrics : Proceedings of the Joint International Symposium : [May 14–18, 2018, St. Petersburg, Russia]. - 2019. -
Vol. 538
,
Is. 1
. - P. 28-34,
DOI
10.1080/00150193.2019.1569982. - Cited References: 15. - This work was partly supported by Russian Foundation for Basic Research Grant no 16-02-00102, 18-02-00754. . - ISSN 0015-0193
Рубрики:
Phase Transitions and Critical Phenomena
Кл.слова (ненормированные):
Temperature
--
Raman
spectroscopy
--
elpasolite
--
phase transition
Аннотация:
The
Raman
spectra of Rb2KLuF6 elpasolite crystal have been studied in a wide temperature range, including two phase transitions: from the cubic phase to the tetragonal phase and then to the monoclinic phase. The results of an analysis of the temperature dependences of the parameters of spectral lines are in good agreement with the thermodynamic data on the phase transitions. The analysis of
Raman
spectra shows that the transition from cubic to tetragonal phase is a second-order transition and the transition from the tetragonal to the monoclinic phase is a weak first-order transition.
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Держатели документа:
Kirensky Institute of Physics FRC KSC SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Voronov, V. N.; Воронов, Владимир Николаевич; Krylova, S. N.; Крылова, Светлана Николаевна; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(14 ; 2018 ; May ; St. Petersburg)
}
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12.
Manifestations of Structural
Phase Transitions in a Rb2KLuF6 Crystal in Its
Raman
Spectra / A. S. Krylov [et al.]> // Opt. Spectrosc. - 2019. -
Vol. 126
,
Is. 4
. - P. 341-345,
DOI
10.1134/S0030400X1904012X. - Cited References: 27. - This work was supported by the Russian Foundation for Basic Research, project nos. 16-02-00102, 18-02-00754. . - ISSN 0030-400X. - ISSN 1562-6911
РУБ
Optics + Spectroscopy
Рубрики:
SCATTERING
ELPASOLITES
LUMINESCENCE
TRANSFORMATIONS
FLUORIDES
Аннотация:
The
Raman
spectra of an Rb2KLuF6 crystal are studied in the temperature range from 8 to 375 K, which includes two phase transitions: one of which proceeds from a cubic to a tetragonal phase, while the other transition takes place from a tetragonal to a monoclinic phase. An analysis of the temperature dependences of parameters of spectral lines shows that the former transition is of the second kind, while the latter transition is of the first kind, close to the tricritical point. It is shown that the structural phase transitions in the Rb2KLuF6 double perovskite are not associated with disordering. The former transition is associated with rotations of LuF6 octahedra around the fourth-order axis, while the latter transition is related with rotations of octahedra and displacements of rubidium ions.
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Публикация на русском языке
Проявление структурных фазовых переходов в кристалле Rb2KLuF6 в спектрах комбинационного рассеяния света [Текст] / А. С. Крылов [и др.] // Оптика и спектроскопия. - 2019. - Т. 126 Вып. 4. - С. 423-427
Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Voronov, V. N.; Воронов, Владимир Николаевич; Krylova, S. N.; Крылова, Светлана Николаевна; Russian Foundation for Basic Research [16-02-00102, 18-02-00754]
}
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13.
Exploration of structural,
vibrational and spectroscopic properties of self-activated orthorhombic double molybdate RbEu(MoO4)2 with isolated MoO4 units / V. V. Atuchin, A. S. Aleksandrovsky, B. G. Bazarov [et al.]> // J. Alloy. Compd. - 2019. -
Vol. 785
. - P. 692-697,
DOI
10.1016/j.jallcom.2019.01.013. - Cited References: 42. - The reported study was funded by RFBR according to research projects 16-52-48010, 17-52-53031 and 18-03-00557. Besides, this study was supported by the Ministry of Science and Higher Education of the Russian Federation (project 0339-2016-0007). The work was supported by Act 211 Government of the Russian Federation, contract No 02.A03.21.0011. Additionally, the work was partially supported by the Ministry of Education and Science of the Russian Federation (4.1346.2017/4.6). . - ISSN 0925-8388. - ISSN 1873-4669
Перевод заглавия:
Исследование структурных, колебательных и спектроскопических свойств самоактивированного орторомбического двойного молибдата RbEu(MoO4)2 с изолированными группами MoO4
РУБ
Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical Engineering
Рубрики:
MORPHOLOGY-CONTROLLED SYNTHESIS
LUMINESCENCE PROPERTIES
Кл.слова (ненормированные):
Rubidium europium molybdate
--
Solid state reaction
--
Rietveld refinement
--
DSC
--
Raman
luminescence
Аннотация:
RbEu(MoO4)2 is synthesized by the two-step solid state reaction method. The crystal structure of RbEu(MoO4)2 is defined by Rietveld analysis in space group Pbcn with cell parameters a = 5.13502(5), b = 18.8581(2) and c = 8.12849(7) Å, V = 787.13(1) Å3, Z = 4 (RB = 0.86%). This molybdate possesses its phase transition at 817 K and melts at 1250 K. The
Raman
spectra were measured with the excitation at λ = 1064 and 514.5 nm. The photoluminescence spectrum is evaluated under the excitation at 514.5 nm. The absolute domination of hypersensitive 5D0→7F2 transition is observed. The ultranarrow 5D0→7F0 transition in RbEu(MoO4)2 is positioned at 580.2 nm being 0.2 nm blue shifted, with respect to that in Eu2(MoO4)3.
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Держатели документа:
SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
South Ural State Univ, Lab Single Crystal Growth, Chelyabinsk 454080, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.
SB RAS, Kirensky Inst Phys, Lab Coherent Opt, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
SB RAS, Baikal Inst Nat Management, Lab Oxide Syst, Ulan Ude 670047, Russia.
Buryat State Univ, Ulan Ude 670000, Russia.
Ind Univ Tyumen, Dept Gen & Special Chem, Tyumen 625000, Russia.
SB RAS, Inst Semicond Phys, Lab Nanodiagnost & Nanolithog, Novosibirsk 630090, Russia.
SB RAS, Kirensky Inst Phys Fed Res Ctr KSC, Lab Mol Spect, Krasnoyarsk 660036, Russia.
SB RAS, Inst Inorgan Chem, Lab Funct Films & Coatings, Novosibirsk 630090, Russia.
SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Siberian Fed Univ, Krasnoyarsk 660079, Russia.
SB RAS, Inst Automat & Elect, Lab Condensed Matter Spect, Novosibirsk 630090, Russia.
Доп.точки доступа:
Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Bazarov, B. G.; Bazarova, J. G.; Chimitova, Olga D.; Denisenko, Yuriy G.; Gavrilova, T. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Maximovskiy, Eugene A.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Pugachev, Alexey M.; Surovtsev, Nikolay V.; RFBR [16-52-48010, 17-52-53031, 18-03-00557]; Ministry of Science and Higher Education of the Russian Federation [0339-2016-0007]; Act 211 Government of the Russian Federation [02.A03.21.0011]; Ministry of Education and Science of the Russian Federation [4.1346.2017/4.6]
}
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14.
Residual mechanical stresses
in pressure treated BaTiO3 powder / I. V. Zaytseva [et al.]> // Ceram. Int. - 2019. -
Vol. 45
,
Is. 9
. - P. 12455-12460,
DOI
10.1016/j.ceramint.2019.03.179. - Cited References: 33. - The reported study was funded by RFBR according to the research projects No. 17-32-5009, 18-02-00399 and State assignment No AAAA-A17-117052410033-9. The experiments were performed in the multiple-access center "High-Resolution Spectroscopy of Gases and Condensed Matter" in IA&E SBRAS (Novosibirsk, Russia) and Center for Common Use of the Krasnoyarsk Scientific Center, SBRAS (Krasnoyarsk, Russia). . - ISSN 0272-8842. - ISSN 1873-3956
РУБ
Materials Science, Ceramics
Рубрики:
DIELECTRIC-PROPERTIES
PHASE-TRANSITION
DIAMOND ANVILS
RAMAN
Кл.слова (ненормированные):
Residual mechanical stress
--
Raman
spectroscopy
--
High non-hydrostatic pressure
--
Temperature treatment
--
Residual pressure
--
BaTiO3 ceramics
Аннотация:
Here we present
Raman
spectroscopy approach to monitor the spatial distribution and the magnitude of the residual mechanical stresses in ceramic after non-hydrostatic pressure treatments. The residual pressure can be found from the E-phonon line shift (∼307 cm−1) in the
Raman
spectra. The relationship between the non-hydrostatic pressure (up to 11 GPa) and the shift of this line has been established. It is demonstrated that the change in the
Raman
line position (1332 cm−1) of the diamond anvil can be used for monitoring of applied non-hydrostatic pressures. A linear dependence of residual mechanical stresses on the applied pressures is found. Micro-
Raman
spectroscopy shows that the residual mechanical stresses are distributed fairly uniformly in the studied BaTiO3 samples at the micron scale. In the future, the proposed
Raman
technique can be used for monitoring the quality of produced BaTiO3 ceramics.
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Держатели документа:
RAS, Inst Automat & Electrometry SB, Novosibirsk 630090, Russia.
RAS, Kirensky Inst Phys Fed Res Ctr KSC SB, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Zaytseva, I. V.; Pugachev, A. M.; Okotrub, K. A.; Surovtsev, N. V.; Mikerin, S. L.; Krylov, A. S.; Крылов, Александр Сергеевич; RFBR [17-32-5009, 18-02-00399, AAAA-A17-117052410033-9]
}
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15.
Understanding perceived color
through gradual spectroscopic variations in electrochromism / S. Mishra [et al.]> // Indian J. Phys. - 2019. -
Vol. 93
,
Is. 7
. - P. 927-933,
DOI
10.1007/s12648-018-1353-7. - Cited References: 34. - Authors acknowledge financial support from the Department of Science and Technology (DST), Govt. of India. Authors are thankful to Dr. K. V. Adarsh (IISER Bhopal) for
Raman
measurements. Authors thank Prof. V.D. Vankar (IIT Delhi) for useful discussions. Authors (AC and DKP) are thankful to MHRD and CSIR (Govt. of India), respectively, for providing fellowships. Support received from DST under FIST scheme (grant number: SR/FST/PSI-225/2016) is also acknowledged. . - ISSN 0973-1458. - ISSN 0974-9845
Перевод заглавия:
Понимание воспринимаемого цвета через постепенные спектроскопические изменения в электрохромизме
РУБ
Physics, Multidisciplinary
Рубрики:
3 REDOX FORMS
TUNGSTEN-OXIDE
RAMAN
-SPECTRA
VIOLOGEN
SALTS
Кл.слова (ненормированные):
Viologen
--
Raman
spectroscopy
--
Electrochromism
--
UV-Vis
Аннотация:
A bias-dependent in situ
Raman
scattering and UV–Vis absorption spectroscopic change has been correlated with the corresponding color change of an electrochromic device in an attempt to explain how to understand the relationship between actual perceived color and its absorption/transmittance spectra. For this, the bias across an electrochromic device was increased gradually, rather than abruptly turning ON and OFF, to see subtle variations in
Raman
and absorption spectra due to bias.
Raman
scattering establishes that viologen changes its oxidation state reversibly between two redox species (EV2+ to EV+•) as a result of bias-induced dynamic redox process. A gradual variation in
Raman
and absorption spectra, which shows maximum absorption corresponding to the yellow light, accompanies similar variation in color change of the device as visible by naked eye. These spectroscopic results are correlated with the perceived blue color, in the reflected light, by the eye to understand the actual reason behind this. Maximum absorption of yellow light by the device resulting in blue appearance has been explained using the concept of additive and subtractive primary colors.
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Держатели документа:
Indian Inst Technol Indore, Discipline Phys & MEMS, Mat Res Lab, Simrol 453552, India.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Univ Alberta, Natl Inst Nanotechnol, Edmonton, AB, Canada.
Доп.точки доступа:
Mishra, S.; Yogi, P.; Chaudhary, A.; Pathak, D. K.; Saxena, S. K.; Krylov, A. S.; Крылов, Александр Сергеевич; Sagdeo, P. R.; Kumar, R.; Department of Science and Technology (DST), Govt. of India; MHRD; CSIR (Govt. of India); DST under FIST scheme [SR/FST/PSI-225/2016]
}
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16.
Dual wavelength Talbot
self-imaging using facet patterned nonlinear crystals / A. M. Vyunishev [et al.]> // Opt. Lett. - 2019. -
Vol. 44
,
Is. 15
. - P. 3761-3764,
DOI
10.1364/OL.44.003761. - Cited References: 19. - Russian Science Foundation (RSF) (19-12-00203). . - ISSN 0146-9592. - ISSN 1539-4794
РУБ
Optics
Рубрики:
RAMAN
-NATH DIFFRACTION
LITHOGRAPHY
FIELD
Аннотация:
A method for functional patterning of facets of a nonlinear crystal using focused ion beam milling has been developed. The near-field diffraction on periodic gratings has been experimentally and theoretically studied. The periodicity of the structure enables Talbot self-imaging at the fundamental and second-harmonic frequencies simultaneously. Spatial interference patterns for both harmonic frequencies are individual ones, which can enable the higher-accuracy optical testing, coupling the radiation at both frequencies, and wavelength-division demultiplexing. The impact of the aperture effect on a Talbot carpet is discussed.
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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia.
Moscow MV Lomonosov State Univ, Int Laser Ctr, Moscow 119992, Russia.
Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Myslivets, S. A.; Мысливец, Сергей Александрович; Fokin, V. A.; Фокин, В. А.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Smolyarova, T. E.; Смолярова, Татьяна Евгеньевна; Radionov, N. V.; Радионов, Никита Вячеславович; Zaitsev, A. I.; Зайцев, Александр Иванович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Chirkin, A. S.; Russian Science Foundation (RSF) [19-12-00203]
}
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17.
Magnetic and structural
correlations in the warwickite Mn2OBO3 / V. Gnezdilov [et al.]> // Физ. низких температур. - 2019. -
Т. 45
,
Вып. 9
: Спеціальний випуск (Частина II) До 100-річчя з дня народження Б.І. Вєркіна. - С. 1223-1230 ; Fiz. Nizk. Temp. - Cited References: 28 . - ISSN 0132-6414
Перевод заглавия:
Магнитные и структурные корреляции в варвиките Mn2OBO3 / Магнітні та структурні кореляції у варвікіті Mn2OBO3
Кл.слова (ненормированные):
geometric frustration
--
two-magnon
Raman
scattering
--
oxyborate
--
геометрична фрустрація
--
двомагнонне раманівське розсіювання
--
оксиборат
--
геометрическая фрустрация
--
двухмагнонное рамановское рассеяние
--
оксиборат
Аннотация:
We report a
Raman
scattering study of single-crystalline homometallic oxyborate Mn2OBO3, a compound realizing a one-dimensional ribbon-structure. Phonon excitations as a function of temperature and light polarization are compared to lattice dynamical calculations, giving evidence for a strong coupling between lattice and magnetic degrees of freedom. Furthermore, a broader feature with a distinct structure emerges at low temperatures. Based on our theoretical analysis, we assign this signal to specific two-magnon scattering processes related to high energy flat-band magnon branches.
Досліджено раманівське розсіювання в монокристалі гомометалічного оксиборату Mn2OBO3 — сполуки, в якій реалізується одномірна стрічкова структура. Температурна та поляризаційна залежності фононних збуджень у порівнянні з розрахунками динаміки ґратки свідчать про сильний зв’язок між ґратковими та магнітними ступенями свободи. Широка спектральна особливість з виразною структурою виникає, крім того, при низьких температурах. Ґрунтуючись на теоретичному аналізі, цей сигнал віднесено до специфічних процесів двомагнонного розсіювання, що пов’язаний з високо-енергетичними магнонними вітками з «плоскою» дисперсією.
Исследовано рамановское рассеяние в монокристалле гомометаллического оксибората Mn2OBO3 — соединения, в котором реализуется одномерная ленточная структура. Температурная и поляризационная зависимость фононных возбуждений в сравнении с расчетами динамики решетки свидетельствуют о сильной связи между решеточными и магнитными степенями свободы. Широкая спектральная особенность с отчетливой структурой возникает, кроме того, при низких температурах. Основываясь на теоретическом анализе, этот сигнал отнесен к специфическим процессам двухмагнонного рассеяния, связанным с высокоэнергетическими магнонными ветвями с «плоской» дисперсией.
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Переводная версия
Держатели документа:
B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Nauki Ave., Kharkiv, 61103, Ukraine
Institute for Condensed Matter Physics, TU Braunschweig, Braunschweig, D-38106, Germany
O.O. Galkin Donetsk Institute for Physics and Engineering of, National Academy of Sciences of Ukraine, 46 Nauki Ave., Kyiv, 03680, Ukraine
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
School of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Gnezdilov, V.; Pashkevich, Yu.; Kurnosov, V.; Zhuravlev, O. V.; Wulferding, D.; Lemmens, P.; Kazak, N. V.; Казак, Наталья Валерьевна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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18.
Magnon mode in
α-MnS
Raman
spectrum / J. V. Gerasimova [et al.]> // J.
Raman
Spectrosc. - 2019. -
Vol. 50
,
Is. 10
. - P. 1572–1575,
DOI
10.1002/jrs.5640. - Cited References: 19. - The authors are grateful to Prof. B. Kolesov and M. Molokeev for his help with experimental data. . - ISSN 0377-0486
Кл.слова (ненормированные):
exchange interaction
--
Raman
spectroscopy
--
single-magnon scattering
--
soft mode
--
α-MnS
Аннотация:
Raman
spectra of manganese monosulphide (α-MnS) with NaCl structure in the temperature range 5–300 К are presented. A new peak at 22 cm–1 has been found at low temperatures. The temperature dependence of this peak made possible to attribute it to the magnon mode at k = 0. This is in good agreement with the magnon wavenumber calculated with Munich SPRKKR-package.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Gerasimova, J. V.; Герасимова, Юлия Валентиновна; Abramova, G. M.; Абрамова, Галина Михайловна; Zhandun, V. S.; Жандун, Вячеслав Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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19.
Soft modes condensation
in
Raman
spectra of (Pb-La)(Zr-Sn-Ti)O3 ceramics / A. N. Vtyurin [et al.]> // J. Adv. Dielectr. - 2019. -
Vol. 9
,
Is. 3
. - Ст. 1950024,
DOI
10.1142/S2010135X19500243. - Cited References: 11 . - ISSN 2010-135X
Кл.слова (ненормированные):
PZT ceramics
--
phase transition
--
Raman
scattering
--
soft mode
Аннотация:
Low frequency
Raman
spectra of (Pb0.97La0.02)(Zr0.864Sn0.04Ti0.096)O3 ceramic samples have been studied near cubic to antiferroelectric phase transition at about 200 °C. A set of low frequency soft modes were observed restoring below the transition point, in addition to the known one above 100cm-1. These modes show strong damping anomalies at the transition point that supposes considerable intermode interactions via dampings. © 2019 The Author(s).
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Держатели документа:
Kirensky Institute of Physics and Siberian, Federal University, Krasnoyarsk, 660036, Russian Federation
Electronic Materials Research, Laboratory and Intl. Center for Dielectric Research, Xi'an, 710049, China
Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Wei, X.; Feng, Y.; Xu, R.; Zhao, T.
}
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20.
Arkhipkin, V. G.
Talbot effect based on a
Raman
-induced grating / V. G. Arkhipkin, S. A. Myslivets> // Phys. Rev. A. - 2019. -
Vol. 100
,
Is. 6
. - Ст. 06383,
DOI
10.1103/PhysRevA.100.063835. - Cited References: 28. - This work was supported by the Russian Science Foundation (RSF) through Grant No. 19-12-00203. . - ISSN 2469-9926. - ISSN 2469-9934
Аннотация:
We theoretically study the Talbot effect resulting from
Raman
-induced grating based on periodic spatial modulation of the
Raman
gain and dispersion in the field of a standing pump wave. Features of integer and fractional Talbot effects are demonstrated for one- and two-dimensional (1D and 2D)
Raman
-induced gratings. It is shown that the intensity of diffraction images can increase due to
Raman
amplification in the grating. Glass-shaped diffraction patterns are demonstrated for 2D gratings. It is also shown that in the vicinity of the Talbot planes there are planes in which the diffraction patterns are spatially compressed and the intensity becomes greater. The results expand the possibility of using the Talbot effect in various applications.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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