Главная
Авторизация
Фамилия
Пароль
Регистрация
Библиотека института физики им. Л.В. Киренского СО РАН
Базы данных
Труды сотрудников ИФ СО РАН - результаты поиска
Вид поиска
Каталог книг и брошюр библиотеки ИФ СО РАН
Каталог журналов библиотеки ИФ СО РАН
Труды сотрудников ИФ СО РАН
Область поиска
Ключевые слова
Автор
Заглавие
Год издания
Место работы автора
в найденном
Формат представления найденных документов:
полный
информационный
краткий
Отсортировать найденные документы по:
автору
заглавию
году издания
типу документа
Поисковый запрос:
(<.>S=OPTICAL-SPECTRA<.>)
Общее количество найденных документов
:
4
Показаны документы
с 1 по 4
1.
Ovchinnikov, S. G.
The mechanism of the electronic transition in ferroborates under high pressure / S. G. Ovchinnikov> // J. Phys.: Condens. Matter. - 2005. -
Vol. 17
: 2nd International Symposium on Physics of Solids Under High Pressure Using Nuclear Probes (JUL 20-24, 2004, Cologne, GERMANY),
Is. 11
. - P. S743-S751,
DOI
10.1088/0953-8984/17/11/003. - Cited References: 20 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
STRUCTURAL PHASE-TRANSITION
MAGNETIC COLLAPSE
OPTICAL
-
SPECTRA
BAND-STRUCTURE
FEBO3
MODEL
Кл.слова (ненормированные):
Carrier concentration
--
Correlation methods
--
Electron transitions
--
High pressure effects
--
Magnetic moments
--
Mathematical models
--
Metal insulator transition
--
Crystal field
--
Electron correlations
--
Electronic transition
--
Ferroborates
--
Ferromagnetic materials
Аннотация:
A novel mechanism for the insulator-semiconductor transition and magnetic collapse in FeBO3 is proposed in the framework of the multielectron model with account taken of strong electron correlations. The electronic transition results from the crossover of the high spin and low spin Fe3+ states induced by the crystal field increasing with pressure. In the high pressure phase a semiconductor-metal transition is expected.
WOS
,
Scopus
,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
L V Kirensky Institute of Physics, Siberian Br. Russ. Acad. of Sci., Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Овчинников, Сергей Геннадьевич
}
Найти похожие
2.
Structural and electronic
transitions in gadolinium iron borate GdFe3(BO3)(4) at high pressures / A. G. Gavriliuk [et al.]> // JETP Letters. - 2004. -
Vol. 80
,
Is. 6
. - P. 426-432,
DOI
10.1134/1.1830662. - Cited References: 20 . - ISSN 0021-3640
РУБ
Physics, Multidisciplinary
Рубрики:
TRIGONAL GDFE3(BO3)(4)
RM(3)(BO3)(4) CRYSTALS
OPTICAL
-
SPECTRA
BAND-STRUCTURE
FEBO3
GROWTH
Аннотация:
The
optical
properties and structure of gadolinium iron borate GdFe3(BO3)(4) crystals are studied at high pressures produced in diamond-anvil cells. X-ray diffraction data obtained at a pressure of 25.6 GPa reveal a first-order phase transition retaining the trigonal symmetry and increasing the unit cell volume by 8%. The equation of state is obtained and the compressibility of the crystal is estimated before and after the phase transition. The
optical
spectra
reveal two electronic transitions at pressures similar to26 GPa and similar to43 GPa. Upon the first transition, the
optical
gap decreases jumpwise from 3.1 to similar to2.25 eV. Upon the second transition at P = 43 GPa, the
optical
gap deceases down to similar to0.7 eV, demonstrating a dielectric-semiconductor transition. By using the theoretical model developed for a FeBO3 crystal and taking into account some structural analogs of these materials, the anomalies of the high-pressure
optical
spectra
are explained. (C) 2004 MAIK "Nauka/Interperiodica".
WOS
,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, Inst High Pressure Phys, Troitsk 142092, Moscow Region, Russia
Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Max Planck Inst Chem, D-55020 Mainz, Germany
ИФ СО РАН
Доп.точки доступа:
Gavriliuk, A. G.; Kharlamova, S. A.; Lyubutin, I. S.; Troyan, I. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Potseluiko, A. M.; Eremets, M. I.; Boehler, R.
}
Найти похожие
3.
Spectroscopic properties of
Nd3+ in orthorhombic δ-BiB3O6 crystal / D. A. Ikonnikov [et al.]> // Opt. Mater. - 2012. -
Vol. 34
,
Is. 11
. - P. 1839-1842,
DOI
10.1016/j.optmat.2012.05.016. - Cited References: 23. - The work was supported by Ministry of Education and Science of Russian Federation (Contract 16.740.11.0150), by Russian Foundation for Basic Researches Grant 12-02-00026, Grant of President of Russian Federation for support of leading scientific schools No. SS-4828.2012.2, Grant No. SFU.F12, and Projects No. 28, 43 and No. 101 of SB RAS. . - ISSN 0925-3467
РУБ
Materials Science, Multidisciplinary + Optics
Рубрики:
SPECTRAL-LINE INTENSITIES
RARE-EARTH IONS
LASER CRYSTAL
NdAl3(BO3)(4) NAB
OPTICAL
-
SPECTRA
BiB3O6
SYSTEMS
GROWTH
Er3+
Tm3+
Кл.слова (ненормированные):
Neodymium
--
Orthorhombic bismuth triborate
--
Absorption
--
Judd-Ofelt analysis
Аннотация:
Absorption
spectra
of the Nd3+ ions in an orthorhombic δ-BiB3O6 single crystal were measured in the spectral range 11,000-20,500 cm-1. The f-f transition intensities were analyzed in terms of the Judd-Ofelt theory, and the following parameters of the theory were obtained: Ω2 = 6.35 × 10-20 cm2, Ω4 = 4.86 × 10-20 cm 2, and Ω6 = 11.233 × 10-20 cm 2. The strengths, spontaneous emission probabilities, branching ratios, spectroscopic quality factor and excited state radiative lifetime were calculated for laser transitions from the 4F3/2 state to 4IJ manifold. Spectroscopic properties of Nd 3+:δ-BiB3O6 crystal favor lasing at 1.3 μm, where this crystal possesses near non-critical phase matching for second harmonic generation. © 2012 Elsevier B.V. All rights reserved.
Смотреть статью
,
Scopus
,
WoS
,
Читать в сети ИФ
Держатели документа:
[Malakhovskii, A. V.
Sukhachev, A. L.
Zaitsev, A. I.
Aleksandrovsky, A. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Ikonnikov, D. A.
Zaitsev, A. I.
Aleksandrovsky, A. S.] Siberian Fed Univ, Krasnoyarsk, Russia
[Jubera, V.] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France
Доп.точки доступа:
Ikonnikov, D. A.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Zaitsev, A. I.; Зайцев, Александр Иванович; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Jubera, V.
}
Найти похожие
4.
Spectroscopic properties of
Nd0.5Gd0.5Fe3(BO3)4 single crystal / A. V. Malakhovskii [et al.]> // J. Alloys Compd. - 2012. -
Vol. 529
. - P. 38-43,
DOI
10.1016/j.jallcom.2012.03.066. - Cited References: 51. - The work was supported by the Russian Foundation for Basic Researches grant 12-02-00026, by the Russian President Grants SS-1044.2012.2 and SS-4828.2012.2, by Ministry of Education and Science of Russian Federation (Contract 16.740.11.0150), by grant no. SFU.F12 and by Projects No. 28, 43 and No. 101 of SB RAS. . - ISSN 0925-8388
РУБ
Chemistry, Physical + Materials Science, Multidisciplinary + Metallurgy & Metallurgical Engineering
Рубрики:
SPECTRAL-LINE INTENSITIES
RARE-EARTH IONS
MAGNETIC-PROPERTIES
NDAL3(BO3)(4) NAB
OPTICAL
-
SPECTRA
LASER CRYSTAL
TRANSITIONS
ABSORPTION
ND3+
PR3+
Кл.слова (ненормированные):
Magnetically ordered materials
--
Rare earth alloys and compounds
--
Transition metal alloys and compounds
--
Optical
properties
Аннотация:
The polarized absorption
spectra
of trigonal single crystal Nd0.5Gd0.5Fe3(BO3)4 were measured in the spectral range 10,000–22,000 cm−1. The d–d and f–f transitions
spectra
were separated. The f–f transitions intensities were analyzed in terms of the Judd–Ofelt theory in a ferroborate with huntite structure for the first time, and the following parameters of the theory were obtained: Ω2 = 4.4 × 10−20 cm2, Ω4 = 8.04 × 10−20 cm2, and Ω6 = 8.25 × 10−20 cm2. The strengths, spontaneous emission probabilities, branching ratios, spectroscopic quality factor and excited state lifetime were calculated for transitions from the 4F3/2 state to 4IJ manifold. All the obtained spectroscopic characteristics were compared with those of alumoborates with the same crystal structure.
Смотреть статью
,
Scopus
,
WoS
,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Leont'ev, A. A.; Леонтьев, Андрей Александрович; Gudim, I. A.; Гудим, Ирина Анатольевна; Krylov, A. S.; Крылов, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
}
Найти похожие
полный формат
краткий формат
все найденные
отмеченные
кроме отмеченных
Стандартный
Расширенный
Профессиональный
Распределенный
По словарю
ГРНТИ-навигатор
УДК-навигатор
Тематический навигатор
Другие библиотеки
Центральная Научная Библиотека КНЦ СО РАН
Библиотека института биофизики
Библиотека института химии и химический технологии
Библиотека института вычислительного моделирования
Библиотека института леса
Библиотека СФУ
Краевая научная библиотека
© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)