Quasielastic light scattering as a method for controlling the quality factor of piezoelectric crystals
Anikiev A.A.1, Umarov M. F.2, Kayumzoda A. K.3
1Bauman Moscow State Technical University, Moscow, Russia
2Vologda State University, Vologda, Russia
3Khujand State University named after Academician Babajan Gafurov, Khujand, Tajikistan
Email: aaanikyev@mail.ru
Polarization measurements of quasi-elastic light scattering were carried out in representatives of a new family of lanthanide stibnite crystals R3Sb5O12 (R = Gd, Pr, Nd, Er). A connection has been established between the degree of depolarization of scattered radiation and imperfections in the structure of new compounds of the cubic symmetry group. The fraction of depolarized radiation is directly related to the acoustic quality factor of the crystals. The law of the inverse exponential relationship between the degree of depolarization of radiation scattered at right angles and the quality factor of piezoresonators based on Pr3Sb5O12 and Nb3Sb5O12 has been found. Keywords: polarization, quasi-elastic scattering, quality factor, defects.
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