In situ Investigation of OH^{-} Absorption in LiNbO_{3} and LiNbO_{3}:MgO Crystals during Reducing/Oxidizing Annealing

• Authors: Yu. Sugak , D. Sugak , Ya. Zhydachevskii , I. Solskii , O. Buryy , S. Ubizskii , K. Becker
• Languages of publication: EN

Abstracts

EN

The work presents experimental results of an in situ investigation of the OH^{-} absorption in pure and MgO-doped LiNbO_{3} crystals during reducing (95% Ar + 5% H_{2}) and oxidizing (O_{2}) high-temperature treatments in the temperature range from room temperature to 820 K. The absorption spectra measured in situ at high temperatures in reducing/oxidizing atmospheres have been analyzed. The origin of the changes in optical absorption caused by heating of the crystal is discussed in terms of the OH-bonds orientation change.

Keywords

EN

42.70.Mp; 78.30.-j; 77.84.-s

Discipline

• 77.84.-s: Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials(for nonlinear optical materials, see 42.70.Mp; for dielectric materials in electrochemistry, see 82.45.Un)
• 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
• 42.70.Mp: Nonlinear optical crystals(see also 77.84.-s Dielectric, piezoelectric, and ferroelectric materials)

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 1
• Pages: 170-173

Dates

published

2010-01

Contributors

author

Yu. Sugak

• Lviv Polytechnic National University, Lviv, Ukraine

author

D. Sugak

• Lviv Polytechnic National University, Lviv, Ukraine
• Institute of Materials, SRC "Carat", Lviv, Ukraine

author

Ya. Zhydachevskii

• Lviv Polytechnic National University, Lviv, Ukraine

author

I. Solskii

• Institute of Materials, SRC "Carat", Lviv, Ukraine

author

O. Buryy

• Lviv Polytechnic National University, Lviv, Ukraine

author

S. Ubizskii

• Lviv Polytechnic National University, Lviv, Ukraine

author

K. Becker

• Institute of Physical and Theoretical Chemistry, Technical University Braunschweig, Braunschweig, Germany

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Identifiers

DOI

10.12693/APhysPolA.117.170