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    Exploration on anion ordering, optical properties and electronic structure in K3WO3F3 elpasolite / V. V. Atuchin [et al.] // J. Solid State Chem. - 2012. - Vol. 187. - P. 159-164, DOI 10.1016/j.jssc.2011.12.037. - Cited References: 50. - This study is partly supported by SB RAS Project No. 34. ZSL acknowledges the funding support of No. 91022036, 11174297, 2010CB630701, and 2011CB922204 in China. Authors also wish to thank V. D. Fokina for microcaloric measurements. . - ISSN 0022-4596
   Перевод заглавия: Исследование анионного упорядочения, оптических свойств и электронной структуры в эльпасолите K3WO3F3

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical + Chemical modification + Electronic structure + Optical properties + Potassium + Structure (composition)
Рубрики:
PHASE-TRANSITIONS
   CRYSTAL-GROWTH
   FERROELECTRIC K3WO3F3
   SOLID-STATE
   OXYFLUORIDE
   FLUORIDE
   POLAR
   CS
   (NH4)(3)MOO3F3
   APPROXIMATION
   Anion ordering
   Chemical routes
   Elpasolite
   First-priciples calculation
   Forbidden band
   Low temperatures
   Non-linear optical coefficients
   Nonlinear optical crystal
   Optical transparency
   Oxyfluorotungstate
   Room temperature
Кл.слова (ненормированные):
Oxyfluorotungstate -- Structure -- Nonlinear optical crystals -- Electronic and optical properties -- First-principles calculations
Аннотация: Room-temperature modification of potassium oxyfluorotungstate, G(2)-K3WO3F3, has been prepared by low-temperature chemical route and single crystal growth. Wide optical transparency range of 0.3-9.4 mu m and forbidden band gap E-g=4.32 eV have been obtained for G(2)-K3WO3F3 crystal. Meanwhile, its electronic structure has been calculated with the first-principles calculations. The good agreement between the theorectical and experimental results have been achieved. Furthermore, G(2)-K3WO3F3 is predicted to possess the relatively large nonlinear optical coefficients. (C) 2012 Elsevier Inc. All rights reserved.

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Держатели документа:
[Lin, Z. S.] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China
[Atuchin, V. V.] SB RAS, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk 630090, Russia
[Isaenko, L. I.
Yelisseyev, A. P.
Zhurkov, S. A.] SB RAS, Lab Crystal Growth, Inst Geol & Mineral, Novosibirsk 630090, Russia
[Kesler, V. G.] Russian Acad Sci, Inst Semicond Phys, Lab Phys Principles Integrated Microelect, Novosibirsk 630090, Russia
[Molokeev, M. S.] SB RAS, Lab Crystal Phys, Inst Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Atuchin, V. V.; Isaenko, L. I.; Kesler, V. G.; Lin, Z. S.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Yelisseyev, A. P.; Zhurkov, S. A.
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    Structural, spectroscopic, and electronic properties of cubic G0-Rb2KTiOF5 oxyfluoride / V. V. Atuchin [et al.] // J. Phys. Chem. C. - 2013. - Vol. 117, Is. 14. - P. 7269-7278, DOI 10.1021/jp401391y. - Cited References: 80. - This study was supported by SB RAS (Grant 28.13), the National Natural Science Foundation of China under Grants 11174297 and 91022036, and the National Basic Research Project of China (Nos. 2010CB630701 and 2011CB922204). . - ISSN 1932-7447
   Перевод заглавия: Структурные, спектроскопические и электронные свойства кубического оксифторида G0-Rb2KTiOF5.

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary
Рубрики:
RAY PHOTOELECTRON-SPECTROSCOPY
   SURFACE CHEMICAL-STABILITY
   EFFECTIVE IONIC-RADII
   PHASE-TRANSITIONS
   CRYSTAL-GROWTH
   HEAT-CAPACITY
   CORE LEVELS
   RB2KTIOF5
   FLUORIDES
   OXIDES
Аннотация: The G0-Rb2KTiOF5 single crystals with dimensions up to nearly a centimeter in size have been prepared by slow solidification method. The elpasolite-related crystal structure of G0-Rb2KTiOF5 has been refined by Rietveld method at T = 298 K (space group Fm (3) over barm, Z = 4, a = 8.880(1) angstrom, V = 700.16(2) angstrom(3); R-B = 2.66%). The wide optical transparency range of 0.25-9 mu m and forbidden band gap of E-g = 3.87 eV have been obtained for the G0-Rb2KTiOF5 crystal. Dominating photoluminescence bands at 3.36 and 2.33 eV are related to free and self-trapped excitons, respectively. The electronic structure of G0-Rb2KTiOF5 has been evaluated by X-ray photoelectron spectroscopy and calculated with the first-principles methods. A good agreement between theoretical and experimental results has been achieved. Chemical bonding effects have been discussed for all metal ions using binding energy difference parameters and a wide comparison with related oxides and fluorides. The competition between O2- and F- ions for metal valence electrons has been found.

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Держатели документа:
Russian Acad Sci, Lab Opt Mat & Struct, Inst Semicond Phys, Novosibirsk 630090, Russia
Russian Acad Sci, Inst Geol & Mineral, Lab Crystal Growth, Siberian Branch, Novosibirsk 630090, Russia
Russian Acad Sci, Inst Semicond Phys, Lab Phys Bases Integrated Microelect, Siberian Branch, Novosibirsk 630090, Russia
Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Funct Crystals & Laser Technol, BCCRD, Beijing 100190, Peoples R China
Russian Acad Sci, Siberian Branch, Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Доп.точки доступа:
Atuchin, V. V.; Isaenko, L. I.; Kesler, V. G.; Kang, L.; Lin, Z. S.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Yelisseyev, A. P.; Zhurkov, S. A.
}
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