Title

Zero temperature coefficient of frequency crystal cuts in monoclinic NdCa4O(BO3)3 piezoelectric crystals

RIS ID

107829

Publication Details

Yu, F., Zhang, S., Zhao, X., Yuan, D., Wang, Q. & Shrout, T. R. (2010). Zero temperature coefficient of frequency crystal cuts in monoclinic NdCa4O(BO3)3 piezoelectric crystals. Physica Status Solidi - Rapid Research Letters, 4 (8-9), 185-187.

Abstract

The temperature coefficient of frequency (TCF) was investigated in monoclinic NdCa4O(BO3)3 (NdCOB) piezoelectric crystals over the temperature range of -140 °C to 200 °C. A zero TCF characteristic was achieved for the (ZXw) 15° crystal cut, with turnover point at 20 °C. The electromechanical coupling k26 and piezoelectric coefficient d26, in shear vibration mode, were determined to be 25% and 13.5 pC/N, respectively. The zero TCF crystal cut, large coupling factor and high piezoelectric coefficient, together with a high mechanical quality factor (Q > 10,000), demonstrate NdCOB crystals promising candidates for bulk acoustic wave resonators over a wide temperature range. 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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Link to publisher version (DOI)

http://dx.doi.org/10.1002/pssr.201004188