Study of Brillouin scattering in (NH4)3H(SeO4)2 single crystal

Miroslaw Drozdowski; K. Lapsa; P. Ziobrowski; M. Augustyniak

doi:10.1117/12.280745

14 July 1997 Study of Brillouin scattering in (NH4)3H(SeO4)2 single crystal

Miroslaw Drozdowski, K. Lapsa, P. Ziobrowski, M. Augustyniak

Proceedings Volume 3178, Solid State Crystals: Growth and Characterization; (1997) https://doi.org/10.1117/12.280745
Event: XII Conference on Solid State Crystals: Materials Science and Applications, 1996, Zakopane, Poland

Abstract

In this paper we report the study of temperature behavior of the hypersonic velocity in NH₄)₃H(SeO₄) single crystal using Brillouin scattering method. The measurements have been performed in the temperature range 230 - 317 K covering two phase transitions between IV - III and III - II (see Fig. 1). Obtained results are discussed in terms of the ordering of SeO₄ tetrahedra, also the existence of the different ferroelastic domain structure and its thermal evolution.

Citation Download Citation

Miroslaw Drozdowski, K. Lapsa, P. Ziobrowski, and M. Augustyniak "Study of Brillouin scattering in (NH4)3H(SeO4)2 single crystal", Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); https://doi.org/10.1117/12.280745

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