Infrared OH- absorptions in Sr0.61Ba0.39Nb2O6 crystals

Myeongkyu Lee; Howard S. Lee; Robert S. Feigelson

doi:10.1063/1.368255

Infrared OH^- absorptions in Sr_0.61Ba_0.39Nb₂O₆ crystals

Myeongkyu Lee, Howard S. Lee, Robert S. Feigelson

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The infrared OH^- absorptions in Bridgman grown Sr_0.61Ba_0.39Nb₂O₆ crystals have been investigated by Fourier transform infrared spectroscopy. Crystals exhibited typical O-H stretching vibrations near ν= 3500 cm^-1 (λ≈2.87 μm). The polarization dependent absorption measurements revealed that a greater density of O-H bonds are polarized in the a-b plane with a smaller amount of bonds along the c axis. Protons (H⁺), which prefer a specific site at room temperature, tended to occupy different sites as the temperature increased. As-grown crystals contained protons on the order of 10¹⁷ cm^-3, and the proton concentration increased by approximately 1 order of magnitude after heat treatment in a humid atmosphere.

Original language	English
Pages (from-to)	1558-1560
Number of pages	3
Journal	Journal of Applied Physics
Volume	84
Issue number	3
DOIs	https://doi.org/10.1063/1.368255
Publication status	Published - 1998 Aug 1

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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title = "Infrared OH- absorptions in Sr0.61Ba0.39Nb2O6 crystals",

abstract = "The infrared OH- absorptions in Bridgman grown Sr0.61Ba0.39Nb2O6 crystals have been investigated by Fourier transform infrared spectroscopy. Crystals exhibited typical O-H stretching vibrations near ν= 3500 cm-1 (λ≈2.87 μm). The polarization dependent absorption measurements revealed that a greater density of O-H bonds are polarized in the a-b plane with a smaller amount of bonds along the c axis. Protons (H+), which prefer a specific site at room temperature, tended to occupy different sites as the temperature increased. As-grown crystals contained protons on the order of 1017 cm-3, and the proton concentration increased by approximately 1 order of magnitude after heat treatment in a humid atmosphere.",

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AU - Lee, Myeongkyu

AU - Lee, Howard S.

AU - Feigelson, Robert S.

PY - 1998/8/1

Y1 - 1998/8/1

N2 - The infrared OH- absorptions in Bridgman grown Sr0.61Ba0.39Nb2O6 crystals have been investigated by Fourier transform infrared spectroscopy. Crystals exhibited typical O-H stretching vibrations near ν= 3500 cm-1 (λ≈2.87 μm). The polarization dependent absorption measurements revealed that a greater density of O-H bonds are polarized in the a-b plane with a smaller amount of bonds along the c axis. Protons (H+), which prefer a specific site at room temperature, tended to occupy different sites as the temperature increased. As-grown crystals contained protons on the order of 1017 cm-3, and the proton concentration increased by approximately 1 order of magnitude after heat treatment in a humid atmosphere.

AB - The infrared OH- absorptions in Bridgman grown Sr0.61Ba0.39Nb2O6 crystals have been investigated by Fourier transform infrared spectroscopy. Crystals exhibited typical O-H stretching vibrations near ν= 3500 cm-1 (λ≈2.87 μm). The polarization dependent absorption measurements revealed that a greater density of O-H bonds are polarized in the a-b plane with a smaller amount of bonds along the c axis. Protons (H+), which prefer a specific site at room temperature, tended to occupy different sites as the temperature increased. As-grown crystals contained protons on the order of 1017 cm-3, and the proton concentration increased by approximately 1 order of magnitude after heat treatment in a humid atmosphere.

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Infrared OH^- absorptions in Sr_0.61Ba_0.39Nb₂O₆ crystals

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