Diffusion of hydrogen in K1-xLiyTa1-yNbxO3 doped crystals

Xiaolin Tong; Min Zhang; Amnon Yariv; Aharon Agranat

doi:10.1063/1.117301

Diffusion of hydrogen in K_1-xLi_yTa_1-yNb_xO₃ doped crystals

Xiaolin Tong^*, Min Zhang, Amnon Yariv, Aharon Agranat

^*Corresponding author for this work

Department of Applied Physics

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

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Abstract

Based on infrared spectra and protonic conductivity measurements, we propose a model of hydrogen ion migration in K_1-yLi_yTa_1-xNb_xO₃ doped crystals and use it to obtain a theoretical estimate of the diffusion constant pre-exponential factor D₀ that is in reasonable agreement with the experimental result. This model shows that the transition energy of the second, and higher, overtone(s) of the [OH] vibration can be higher than the activation energy of hydrogen ion migration.

Original language	English
Pages (from-to)	3345-3347
Number of pages	3
Journal	Applied Physics Letters
Volume	69
Issue number	22
DOIs	https://doi.org/10.1063/1.117301
State	Published - 25 Nov 1996

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abstract = "Based on infrared spectra and protonic conductivity measurements, we propose a model of hydrogen ion migration in K1-yLiyTa1-xNbxO3 doped crystals and use it to obtain a theoretical estimate of the diffusion constant pre-exponential factor D0 that is in reasonable agreement with the experimental result. This model shows that the transition energy of the second, and higher, overtone(s) of the [OH] vibration can be higher than the activation energy of hydrogen ion migration.",

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AU - Tong, Xiaolin

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AU - Agranat, Aharon

PY - 1996/11/25

Y1 - 1996/11/25

N2 - Based on infrared spectra and protonic conductivity measurements, we propose a model of hydrogen ion migration in K1-yLiyTa1-xNbxO3 doped crystals and use it to obtain a theoretical estimate of the diffusion constant pre-exponential factor D0 that is in reasonable agreement with the experimental result. This model shows that the transition energy of the second, and higher, overtone(s) of the [OH] vibration can be higher than the activation energy of hydrogen ion migration.

AB - Based on infrared spectra and protonic conductivity measurements, we propose a model of hydrogen ion migration in K1-yLiyTa1-xNbxO3 doped crystals and use it to obtain a theoretical estimate of the diffusion constant pre-exponential factor D0 that is in reasonable agreement with the experimental result. This model shows that the transition energy of the second, and higher, overtone(s) of the [OH] vibration can be higher than the activation energy of hydrogen ion migration.

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Diffusion of hydrogen in K_1-xLi_yTa_1-yNb_xO₃ doped crystals

Abstract

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