Group-theory analysis phonon spectra of crystals Tl<sub>4<sub>HgI<sub>6</sub>

Authors

  • А. І. Кашуба Ivan Franko National University of Lviv, Ukraine
  • О. М. Попель Ivan Franko National University of Lviv, Ukraine
  • О. В. Бовгира Ivan Franko National University of Lviv, Ukraine
  • А. В. Франів Ivan Franko National University of Lviv, Ukraine
  • М. В. Соловйов Ivan Franko National University of Lviv, Ukraine

DOI:

https://doi.org/10.24144/2415-8038.2015.38.64-69

Keywords:

lattice, grouptheoryanalysis, basis, phononspectra

Abstract

Inthisworkwepresenttheresultsoftheoretical calculations of phonon spectra of Tl4HgI6 crystal.Based on grouptheory analysis the symmetry classification of phonon modes carried out.Moreover the distribution of vibrations for symmetry classes of single crystals and the selection rules for vibrations in the IR- and Raman spectra are obtained.

References

Piasecki M., Lakshminarayana G., Fedorchuk A. O., Kushnir O. S., Franiv V. A., Franiv A. V., Myronchuk G., Plucinski K. J. Temperature operated infrared nonlinear optical materials based on // J.Mater.Sci: Mater.Electron. – 2013. −P.1187–1193.

Badikov D. V., Badikov V. V., Kuz’micheva G. M., Panyutin V. L., Rybakov V. B., Chizikov V. I., Shevyrdyaeva G. S., Shcherbakova E. S. Growth and X-ray Diffraction Study of Crystals // MAIK “Nauka/Interperiodica”. – 2004. – V. 40, № 3. – P. 314-320.

Довгий Я., Тернавська С., Франів А. Фононні спектри твердих розчинів заміщення // Фізичний збірник НТШ. – 2002.− Т. 5. – С. 1-31.

Пуле А., Матьє Ж.-П. Колебательные спектры и симметрия кристаллов. −М.: “Мир”, 1973. – 437 с.

Franiv A.V., Kushnir O.S., Girnyk I.S., Franiv V.A., Kityk I., Piasecki M., Plucinski K.J. Growth, crystal structure, thermal properties and optical anisotropy of Tl4CdI6 single crystals // Ukr. J. Phys. Opt. – 2013. − P. 6-14.

Brik M.G., Kityk I.V., Fedorchuk A.O., Franiv V.A., Parasyuk O.V. Origin of anisotropy of the near band gap absorption in Tl4HgBr6 single crystals//Journal of Materials Chemistry C. – 2014. – P. 2779−2785.

Downloads

Published

2015-07-01

Issue

Vol. 38 (2015)

Section

Статті

License

Copyright (c) 2017 Науковий вісник Ужгородського університету. Серія Фізика

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors who publish with this journal agree to the following terms:
    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
    2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
    3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).