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 Найдено в других БД:Каталог книг и брошюр библиотеки ИФ СО РАН (27)Каталог журналов библиотеки ИФ СО РАН (2)
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Общее количество найденных документов : 746
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1.


   
    Spin crossover and resulting insultor?metal transitions in Mott insulators under high pressure / S. G. Ovchinnikov, I. S. Lyubutin [et al.] // XXXV Совещание по физике низких температур (НТ-35) : тезисы докладов : Черноголовка, 29 сентября - 2 октября 2009 г. / Сов. по физ. низких температур. - P85 . - ISBN 978-5-94691-384-3


Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Lyubutin, I. S.; Gavriliuk, A. G. ; Struzhkin, V. V.; Совещание по физике низких температур(35 ; 2009 ; сент.-окт. ; Черноголовка)
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2.


   
    Ferroelectric and ferroelastic phase transitions in some oxyfluorides A2AMOxF6-x with elpasolite-cryolite structure [Text] / Flerov I. // 9th Russai/CIS/Baltic/Japan symposium on ferroelectricity : abstracts book : June 15-19, 2008, Vilnius, Lithuania. - p. 113


Доп.точки доступа:
Flerov, I. N.; Флёров, Игорь Николаевич; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(9 ; 2008 ; May ; Vilnus, Lithuania)
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3.


   
    Phase transitions in (NH4)2MoO2F4: effect of hydrostatic and chemical pressure [Text] / Bogdanov E., Fokina V., Flerov I., Gorev M., Vasiliev A., Pogoreltsev E., Laptash N. // 9th Russai/CIS/Baltic/Japan symposium on ferroelectricity : abstracts book : June 15-19, 2008, Vilnius, Lithuania. - p. 139


Доп.точки доступа:
Bogdanov, E. V.; Богданов, Евгений Витальевич; Fokina, V. D.; Фокина, Валентина Дмитриевна; Flerov, I. N.; Флёров, Игорь Николаевич; Gorev, M. V.; Горев, Михаил Васильевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Laptash, N. M.; Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(9 ; 2008 ; May ; Vilnus, Lithuania)
}
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4.


   
    Effect of central cation substitution on the properties and phase transitions in (NH4)3Me(O2)2F4 oxyfluorides [Text] / V. D. Fokina, I. N. Flerov [et al.] // The 6th International Seminar on Ferroelastics Physics (ISFP-6) : Voronezh, September 22–25, 2009. - P43


Доп.точки доступа:
Fokina, V.D.; Flerov, I.N.; Molokeev, M.S.; Pogoreltsev, E.I.; Bogdanov, E.V.; Laptash, N.M.; International Seminar on Ferroelastic Physics(6 ; 2009 ; Sept. ; 22-25 ; Voronezh)
Свободных экз. нет}
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5.


   
    Ordering processes and phase transitions in ammonium-containing crystals of A2BWO3F3 elpasolites – com?parative Raman and infrared study [Text] / A. N. Vtyurin, A. S. Krylov [et al.] // The 6th International Seminar on Ferroelastics Physics (ISFP-6) : Voronezh, September 22–25, 2009. - P23


Доп.точки доступа:
Vtyurin, A.N.; Krylov, A.S.; Gerasimova, Ju.V.; Ivanenko, A.A.; Shestakov, N.P.; Laptash, N.M.; International Seminar on Ferroelastic Physics(6 ; 2009 ; Sept. ; 22-25 ; Voronezh)
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6.


   
    The study of peculiarity of phase transitions in (NH4)2WO2F4 by inelastic neutrov scattering / Smirnov L., Kolesnikov A., Flerov I., Laptsh N. // 9th Russian/CIS/Baltic/Japan symposium on ferroelectricity, June 15-19, 2008, Vilnius, Lithuania, p.136


Доп.точки доступа:
Smirnov, L.; Kolesnikov, A.; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
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7.


   
    Magnetostriction and electric polarization anomalies in GdFe3(BO3)4 single crystals at phase transitions [Text] / S. S. KrotovKadomtseva A.M.Popov Yu.F. [et al.] // JMMM. - Vol. 300, Is. 1. - P. e426-e429DOI 10.1016/j.jmmm.2005.10.183. - Cited References: 10
Аннотация: Our experimental and theoretical investigation was aimed at the study of different gadolinium ferroborate single-crystal properties both at spontaneous and high magnetic field-induced phase transitions.

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Держатели документа:
Moscow State University, Vorob’evi Gori, Moscow 119991, Russia
Institute of Physics SBRAS, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Krotov, S. S.; Kadomtseva A.M.; Popov Yu.F.; Vorob’ev G.P.; Kuvardin A.V.; Kamilov K.I.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Popova E.A.
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8.


    Malakhovskii, A. V.
    Nature of magnetic circular dichroism and absorption spectra of f-f transitions in Na0.4Ho0.6F2.2 single crystal / A. V. Malakhovskii, V. V. Sokolov, D. N. Karimov // Chem. Phys. - 2024. - Vol. 581. - Ст. 112257, DOI 10.1016/j.chemphys.2024.112257. - Cited References: 25 . - ISSN 0301-0104. - ISSN 1873-4421
Кл.слова (ненормированные):
Magnetic circular dichroism -- f-f transitions -- Fluoride crystals -- Ho ions
Аннотация: We present first study of magnetic circular dichroism (MCD) spectra of Ho3+ ion in C4v local symmetry, which it has in fluorite Na0.4Ho0.6F2.2. Optical absorption and MCD spectra were studied in this single crystal in the region of 5I8> 5F3, 5F2, 3K8 and 5G5 transitions in the temperature range 3.6–––90 K. It was revealed, that number of transitions observed in the MCD and absorption spectra coincides with the number of transitions only from the doublet E state to singlet excited states. The E-E type transitions are not active in MCD, but they are not observed in the absorption spectra either. Paramagnetic magneto-optical activities (MOA) of the absorption bands and their temperature dependences were measured and interpreted with the help of the theory based on the nature of f-f transitions allowance. The MCD spectra were also analyzed in approximation of the J,±MJ wave functions of the free atom. It was shown in particular, that the lowest initial state of the transitions observed at T ˃ 10 K had MJ = 7, but this is not the lowest state of the holmium ion in the crystal. A little lower there is a quasi-doublet with MJ = 8 and, accordingly, with a higher magneto-optical activity of transitions from it. However, the intensity of transitions from this state is low.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russian Federation
Federal Scientific Research Centre «Crystallography and Photonics» of Russian Academy of Sciences, Leninskiy Prospekt 59, 119333 Moscow, Russia

Доп.точки доступа:
Sokolov, V. V.; Соколов, Валерий Владимирович; Karimov, D.N.; Малаховский, Александр Валентинович
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9.


   
    Raman spectroscopy of Wadsley phases of vanadium oxide / P. Shvets, A. Krylov, K. Maksimova, A. Goikhman // J. Raman Spectrosc. - 2024. - Vol. 55, Is. 4. - P. 445-458, DOI 10.1002/jrs.6644. - Cited References: 133. - This work was prepared with support from the Ministry of Science and Higher Education of the Russian Federation (project FZWM-2020-0008) . - ISSN 0377-0486. - ISSN 1097-4555
Кл.слова (ненормированные):
phase transitions -- V3O7 -- V4O9 -- V6O13 -- VO2 (B)
Аннотация: We summarize the current knowledge on crystal structures, synthesis, applications, and Raman spectroscopy of Wadsley phases of vanadium oxide, including VO2 (B), V6O13, V4O9, V3O7, and V2O5. While these oxides have garnered significant attention for potential energy storage applications and have been studied for decades, there remains inconsistency in data regarding their characteristic Raman spectra. To address this, we synthesized a series of Wadsley phases by physical vapor deposition of amorphous vanadium oxide films and subsequent annealing in a controlled environment. X-ray diffraction studies confirmed the formation of VO2 (B), V6O13, V4O9, and V3O7. We meticulously measured the room-temperature Raman spectra of these phases, offering robust reference data for the easy identification of vanadium oxides in unknown samples. Finally, we studied low-temperature phase transitions in VO2 (B) and V6O13.

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Scopus
Держатели документа:
Research and Educational Center “Functional Nanomaterials”, Immanuel Kant Baltic Federal University, Kaliningrad, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shvets, P.; Krylov, A. S.; Крылов, Александр Сергеевич; Maksimova, K.; Goikhman, A.
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10.


   
    Phase transitions and nonlinear optical property modifications in BaGa4Se7 / L. Isaenko, L. Dong, S. V. Melnikova [et al.] // Inorg. Chem. - 2024. - Vol. 63, Is. 21. - P. 10042-10049, DOI 10.1021/acs.inorgchem.4c01341. - Cited References: 27. - This work was supported by the National Natural Science Foundation of China, grant no. 22133004 (first-principles studies), the Ministry of Education and Science of the Russian Federation, grant FSUS-2020-0036 (crystal growth, crystal structure analysis, and band gap measurement), and partly done on the state assignment of IGM SB RAS no. 122041400031-2 (composition chemical analysis and SHG coefficient measurements) . - ISSN 0020-1669. - ISSN 1520-510X
Аннотация: Phase transitions can change the crystal structure and modify the physical properties of crystals. In this work, we investigate the phase transition behavior in BaGa4Se7, an important middle infrared (mid-IR) nonlinear optical (NLO) crystal, in the temperature range from room temperature to 1173 K. Interestingly, the BaGa4Se7 crystal undergoes a reversible ferroelastic phase transition at T = 528 K, resulting in the presence of a newly discovered phase (γ-phase) at the higher temperature. The experimental temperature dependence of optical birefringence, as well as the first-principles birefringence and NLO coefficients, reveals that the γ-phase exhibits larger birefringence and better NLO properties compared with those of the low-temperature phase (α-phase). This work demonstrates that phase-transition-induced structural modification can improve the mid-IR NLO properties, which would provide an effective avenue to obtain materials with good optoelectronic performance.

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Держатели документа:
Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk State University, Novosibirsk 630090, Russia
Functional Crystals Lab, Technical Institute of Physics and Chemistry, CAS, University of Chinese Academy of Sciences, Beijing 100190, China
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Department of Physics, Far Eastern State Transport University, Khabarovsk 680021, Russia
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk 630090, Russia

Доп.точки доступа:
Isaenko, L.; Dong, L.; Melnikova, S. V.; Мельникова, Светлана Владимировна; Molokeev, M. S.; Молокеев, Максим Сергеевич; Korzhneva, K. E.; Krinitsin, P. G.; Kurus, A. F.; Samoshkin, D. A.; Belousov, R. A.; Lin, Zh.
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