Open AccessИсследование пьезоэлектрического резонанса в стехиометрических кристаллах LiNbO-=SUB=-3-=/SUB=- в области высоких температур и проводимости
Author(s) -
М. Н. Палатников,
В. А. Сандлер,
N. V. Sidorov,
О. В. Макарова
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.07.47837.375
Subject(s) - lithium niobate , conductivity , piezoelectricity , materials science , ferroelectricity , dielectric , resonator , relaxation (psychology) , range (aeronautics) , stoichiometry , resonance (particle physics) , atmospheric temperature range , ion , electrical resistivity and conductivity , lithium (medication) , analytical chemistry (journal) , condensed matter physics , mineralogy , optoelectronics , chemistry , composite material , thermodynamics , physics , atomic physics , psychology , social psychology , organic chemistry , quantum mechanics , medicine , chromatography , endocrinology
In order to establish conditions of lithium niobate based piezoelectric resonators application at high temperatures and high conductivity in a wide range of temperatures (~ 300 – 850К) we have researched piezoelectric, ferroelectric, dielectric properties and ion conductivity of near-stoichiometric LiNbO3stoich crystals. We have revealed that piezo-resonance is observed in LiNbO3stoich in a certain temperature range ΔТ (correspondingly, in certain static conductivity relaxation time Δtau_V range) and frequencies range Δomega_R provided that tau_V-1<<omegaR. Such patterns are probably applicable not only to LiNbO3stoich crystals, but also to other piezoelectric materials.