{"title":"Investigation of the Properties of Surface Acoustic Waves in a Lithium Niobate Single Crystal with a Silicon Dioxide Film by the Finite-Element Method","authors":"O. L. Balysheva, A. S. Koigerov, B. Ts. Rakshaev","doi":"10.1134/S1063774523600266","DOIUrl":null,"url":null,"abstract":"<p>Characteristics of surface acoustic waves in lithium niobate single crystal/silicon dioxide film structures, which are used to increase the thermal stability of acoustoelectric devices on single-crystal substrates, have been calculated. The simulation has been performed by the finite-element method using the COMSOL software, and the velocity, electromechanical coupling coefficient, and temperature coefficient of frequency in the structures with lithium niobate of different cuts have been calculated. A good agreement is observed between the results obtained and the data in the literature. The obtained parameters are of practical importance for developing various acoustoelectric devices.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 3","pages":"344 - 350"},"PeriodicalIF":0.6000,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774523600266","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
Characteristics of surface acoustic waves in lithium niobate single crystal/silicon dioxide film structures, which are used to increase the thermal stability of acoustoelectric devices on single-crystal substrates, have been calculated. The simulation has been performed by the finite-element method using the COMSOL software, and the velocity, electromechanical coupling coefficient, and temperature coefficient of frequency in the structures with lithium niobate of different cuts have been calculated. A good agreement is observed between the results obtained and the data in the literature. The obtained parameters are of practical importance for developing various acoustoelectric devices.
期刊介绍：
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.
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