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Inorganic Materials

, Volume 53, Issue 5, pp 502–509 | Cite as

Optical properties, defects, and composition of La3Ga5.5Ta0.5O14 crystals

  • O. A. Buzanov
  • M. I. Voronova
  • E. V. Zabelina
  • A. P. Kozlova
  • N. S. Kozlova
  • E. A. Skryleva
  • D. A. Spassky
  • K. D. Shcherbachev
Article

Abstract

La3Ga5.5Ta0.5O14 crystals were grown in pure argon and in an argon + 2% oxygen atmosphere. The growth atmosphere significantly effects the elemental composition of the crystals, their color, and the genesis and intensity of absorption bands in the ultraviolet, visible, and infrared spectral regions. Two types of defects were identified in the crystals: planar interstitial defects and nearly spherical vacancy-type defects.

Keywords

langatate growth atmosphere transmission spectra defects absorption bands composition structure diffuse X-ray scattering X-ray photoelectron spectroscopy energy dispersive X-ray spectroscopy anisotropy 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • O. A. Buzanov
    • 1
  • M. I. Voronova
    • 2
  • E. V. Zabelina
    • 2
  • A. P. Kozlova
    • 2
  • N. S. Kozlova
    • 2
  • E. A. Skryleva
    • 2
  • D. A. Spassky
    • 2
    • 3
  • K. D. Shcherbachev
    • 2
  1. 1.OAO Fomos-MaterialsMoscowRussia
  2. 2.Moscow Institute of Steel and Alloys (National University of Science and Technology)MoscowRussia
  3. 3.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

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