Open AccessIR Photoinduced Piezoelectric Effects in Multi-Component Chalcogenides Ag2In(Ga)2Si(Ge)S(Se)6
Author(s) -
G.L. Myronchuk,
Оksana Zamurueva,
I.V. Kityk
Publication year - 2019
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.20.4.401-405
Subject(s) - piezoelectricity , materials science , irradiation , laser , phonon , excitation , wavelength , piezoelectric coefficient , optoelectronics , optics , condensed matter physics , composite material , physics , quantum mechanics , nuclear physics
The influence of external irradiation of CO2, CO, Er:glass, Nd:YA lasers on the piezoelectric properties of the Ag2In(Ga)2Si(Ge)S(Se)6 crystals was investigated. The maximum photoinduced changes in the piezoelectric coefficient were observed after irradiation with CO2 laser. CO photoinducing bicolour beams with 5.5 μm wavelength cause at least 4 times smaller increase in piezoelectric coefficients. Therefore, it can be expected that the primary mechanisms cause the excitation of the phonon subsystem.