Piezoelectric interfacial waves in two-medium structures

• Autorzy: Laprus W.
• Języki publikacji: EN

Abstrakty

EN

The theory is given and a numerical analysis is presented of propagation of piezoelectric interfacial waves along a perfectly conducting plane that separates two piezoelectric half-spaces of different crystallographic orientations or two half-spaces of different piezoelectrics. In the case of slightly different orientations (half a degree in each Euler angle), it is found that the coupling coefficient is in general less than in the case of two half-spaces of the same orientation, but still large. For example, it is 3.40% for lithium niobate (instead of 3.50%), 0.85% for dilithium tetraborate (instead of 0.90%), 0.15% for langasite (instead of 0.20%). In the case of two half-spaces of arbitrary different crystallographic orientations (lithium niobate and lithium niobate), and two half-spaces of different piezoelectrics (dilithium tetraborate and lithium niobate), it is found that the coupling coefficient may be quite large for some crystal cuts (correspondingly 2.25% and 1.45%), although for the majority of crystal cuts the waves do not exist.

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 1998
• Tom: Vol. 23, no. 4
• Strony: 521--532
• Opis fizyczny: Bibliogr., 12 poz., rys., tab., wykr.

Twórcy

autor

Laprus W.

• Polish Academy of Sciences, Institute of Fundamental Technological Research, Warszawa, Poland

Bibliografia

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• [9] E. Danicki and W. Laprus, Piezoelectric interfacial waves in langasite and dilithium tetraborate, [in:] 1995 IEEE Ultrasonics Symposium Proceedings, M. Levy, S.C. Schneider and B.R. McAvoy [Eds.], IEEE, New York 1995, pp. 1011-1014.
• [10] E. Danicki and W. Laprus, Piezoelectric interfacial waves in langasite and dilithium tetraborate, Archives of Acoustics, 21, 99-107 (1996).
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• [12] www.ippt.gov.pl/~wlaprus.