Surface transverse waves on langasite
作者:
J. Koskela,
S. Lehtonen,
V. P. Plessky,
M. M. Salomaa,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 21
页码: 2665-2667
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.121092
出版商: AIP
数据来源: AIP
摘要:
Surface transverse waves (STW) are numerically simulated on langasite. As our method of investigation, we compute the admittance of an infinite synchronous resonator. The resonance and antiresonance frequencies are evaluated as functions of the crystal cut, temperature, and the thickness of the aluminium electrodes. For optimal parameters, we demonstrate a vanishing first-order temperature coefficient at room temperature and find a coupling strength several times stronger than that for Rayleigh waves in ST quartz. In particular, we find that the sensitivity of the resonance frequency to variations in the thickness of the aluminium electrodes is significantly lower in langasite than in ST quartz. ©1998 American Institute of Physics.
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