Diffusion of hydrogen isotopes in pure and Mg-doped LiNbO3 crystals

L. Kovács, K. Polgar, R. Capelletti, C. Mora

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The diffusivity of protons and deuterons was measured parallel to the hexagonal c-axis in pure and Mg-doped LiNbO3 crystals. The infrared absorption of OH- and OD- ions was monitored after isothermal annealing between 450 to 650 °C in O2 bubbled through D2O. The activation energy for the out-diffusion of protons and in-diffusion of deuterons is Ep ≈ (1.1 ± 0.2) eV and Ed ≈ (1 ± 0.1) eV, respectively. The proton out-diffusion data are consistent with those obtained from electrical conductivity measurements.

Original languageEnglish
Pages (from-to)97-104
Number of pages8
JournalPhysica Status Solidi (A) Applied Research
Volume230
Issue number2
Publication statusPublished - Jul 1990

Fingerprint

hydrogen isotopes
doped crystals
Isotopes
Hydrogen
Protons
Crystals
deuterons
protons
Deuterium
Isothermal annealing
infrared absorption
diffusivity
Infrared absorption
activation energy
electrical resistivity
annealing
Activation energy
Ions
lithium niobate
ions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Diffusion of hydrogen isotopes in pure and Mg-doped LiNbO3 crystals. / Kovács, L.; Polgar, K.; Capelletti, R.; Mora, C.

In: Physica Status Solidi (A) Applied Research, Vol. 230, No. 2, 07.1990, p. 97-104.

Research output: Contribution to journalArticle

Kovács, L. ; Polgar, K. ; Capelletti, R. ; Mora, C. / Diffusion of hydrogen isotopes in pure and Mg-doped LiNbO3 crystals. In: Physica Status Solidi (A) Applied Research. 1990 ; Vol. 230, No. 2. pp. 97-104.
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