title: Surface and quasi-longitudinal acoustic waves in KTiOAsO₄ single crystals.
abstract: Surface and quasi-longitudinal acoustic wave properties have been investigated in potassium titanyl arsenate (KTiOAsO₄, KTA) single crystals for the first time. Surface acoustic wave (SAW) velocity, electromechanical coupling coefficient and power flow angle characteristics have been obtained in rotated Y-cut of KTA crystals. High SAW electromechanical coupling coefficient (0.4%) is found in Z-cut of KTA crystals. For high-frequency devices it is promising the resonators on quasi-longitudinal acoustic wave in X-cut of KTA crystals with sharp response in interdigital transducer conductance at resonance frequency.
authors.affiliation: Institute of Semiconductor Physics SB RAS, Acad. Lavrentjev Avenue, 13, 630090 Novosibirsk, Russian Federation. Electronic address: taziev07@mail.ru.
authors.forename: Rinat M
authors.initials: RM
authors.lastname: Taziev
mesh_terms: D001149:Arsenates / Q000737:chemistry*; D003198:Computer Simulation; D003460:Crystallization; D017097:Electric Impedance; D008422:Materials Testing; D008956:Models, Chemical; D011188:Potassium / Q000737:chemistry*; D013016:Sound; D013499:Surface Properties; D013718:Tensile Strength; D014025:Titanium / Q000737:chemistry*
chemical_list: D001149:Arsenates; C009495:titanium dioxide; D014025:Titanium; D011188:Potassium
keywords: Effective permittivity function; Potassium titanyl arsenate (KTiOAsO(4), KTA); Quasi-longitudinal acoustic wave; Surface acoustic wave