FTIR absorption study of hydroxyl ions in KHo(WO4)2 single crystals

L. Kovács, M. T. Borowiec, A. Majchrowski, A. Baraldi, R. Capelletti

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The presence of hydroxyl ions has been detected in as-grown KHo(WO 4)2 double tungstate single crystals by Fourier Transform Infrared (FTIR) spectroscopy. The absorption bands of the stretching vibration of OH- ions have been observed between 8-300 K in the 3450-3650 cm-1 wave number range. The temperature and polarization dependences of several intense narrow absorption lines corresponding to hydroxyl ions in different environments have been studied in detail. All lines were shifted, broadened and their intensity was decreased by increasing temperature due to phonon coupling. The band intensities strongly depended on the light propagation and polarization directions, allowing the determination of the orientation of OH dipoles with respect to the crystallographic axes. The isotopic replicas of several OH- bands have been detected between 2550-2650 cm -1 in crystals treated in D2O water vapour at 873 K.

Original languageEnglish
Pages (from-to)444-448
Number of pages5
JournalCrystal Research and Technology
Volume40
Issue number4-5
DOIs
Publication statusPublished - Apr 2005

Fingerprint

Infrared absorption
infrared absorption
Fourier transforms
Single crystals
single crystals
Ions
ions
Light propagation
tungstates
polarization
Light polarization
replicas
Water vapor
Stretching
Fourier transform infrared spectroscopy
water vapor
Absorption spectra
Steam
infrared spectroscopy
Polarization

Keywords

  • Double tungstates
  • OH ions
  • Stretching vibration

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

FTIR absorption study of hydroxyl ions in KHo(WO4)2 single crystals. / Kovács, L.; Borowiec, M. T.; Majchrowski, A.; Baraldi, A.; Capelletti, R.

In: Crystal Research and Technology, Vol. 40, No. 4-5, 04.2005, p. 444-448.

Research output: Contribution to journalArticle

Kovács, L, Borowiec, MT, Majchrowski, A, Baraldi, A & Capelletti, R 2005, 'FTIR absorption study of hydroxyl ions in KHo(WO4)2 single crystals', Crystal Research and Technology, vol. 40, no. 4-5, pp. 444-448. https://doi.org/10.1002/crat.200410364
Kovács, L. ; Borowiec, M. T. ; Majchrowski, A. ; Baraldi, A. ; Capelletti, R. / FTIR absorption study of hydroxyl ions in KHo(WO4)2 single crystals. In: Crystal Research and Technology. 2005 ; Vol. 40, No. 4-5. pp. 444-448.
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