Hydroxyl ions in acousto-optic Pb5(GeO4)(VO 4)2 and Bi2(MoO4)3 single crystals

L. Kovács, A. Péter, M. Gospodinov, R. Capelletti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The presence of hydroxyl ions has been detected for the first time in as-grown Pb5(GeO4)(VO4)2 (PGV) and Bi2(MoO4)3 (BMO) single crystals by the Fourier Transform Infrared (FTIR) absorption technique. A single, but relatively broad absorption band (Δ v ≈24 cm-1) related to the stretching vibration of OH ions has been observed in PGV at 3561.5 cm-1 wave number at 9 K. In BMO two narrow absorption bands have appeared at 3467.4 cm-1 (Δvx≈ 0.7 cm-1) and 3337.4 (Δv≈2 cm-1) at 9 K. The OD- isotopic replicas have been detected in both crystals after high temperature treatments in D2O vapour. The anharmonicities of the stretching mode calculated from the vibrational frequencies of the OH-/OD- ions for the three bands are xe ≈0.024, 0.027, and 0.035. Anomalous temperature dependences have been observed for the vibrational frequency of the 3337.4 cm-1 band in BMO, and for the halfwidth of the OH band in PGV.

Original languageEnglish
Title of host publicationPhysica Status Solidi C: Conferences
Pages689-692
Number of pages4
Volume2
Edition1
DOIs
Publication statusPublished - 2005

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acousto-optics
single crystals
absorption spectra
ions
replicas
infrared absorption
vapors
vibration
temperature dependence
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

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Kovács, L., Péter, A., Gospodinov, M., & Capelletti, R. (2005). Hydroxyl ions in acousto-optic Pb5(GeO4)(VO 4)2 and Bi2(MoO4)3 single crystals. In Physica Status Solidi C: Conferences (1 ed., Vol. 2, pp. 689-692) https://doi.org/10.1002/pssc.200460267

Hydroxyl ions in acousto-optic Pb5(GeO4)(VO 4)2 and Bi2(MoO4)3 single crystals. / Kovács, L.; Péter, A.; Gospodinov, M.; Capelletti, R.

Physica Status Solidi C: Conferences. Vol. 2 1. ed. 2005. p. 689-692.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kovács, L, Péter, A, Gospodinov, M & Capelletti, R 2005, Hydroxyl ions in acousto-optic Pb5(GeO4)(VO 4)2 and Bi2(MoO4)3 single crystals. in Physica Status Solidi C: Conferences. 1 edn, vol. 2, pp. 689-692. https://doi.org/10.1002/pssc.200460267
Kovács L, Péter A, Gospodinov M, Capelletti R. Hydroxyl ions in acousto-optic Pb5(GeO4)(VO 4)2 and Bi2(MoO4)3 single crystals. In Physica Status Solidi C: Conferences. 1 ed. Vol. 2. 2005. p. 689-692 https://doi.org/10.1002/pssc.200460267
Kovács, L. ; Péter, A. ; Gospodinov, M. ; Capelletti, R. / Hydroxyl ions in acousto-optic Pb5(GeO4)(VO 4)2 and Bi2(MoO4)3 single crystals. Physica Status Solidi C: Conferences. Vol. 2 1. ed. 2005. pp. 689-692
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