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

Fapeng Yu, Shujun Zhang, Xian Zhao, Duorong Yuan, Qing Ming Wang, Thomas R. Shrout

Research output: Contribution to journalArticle

13 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)185-187
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume4
Issue number8-9
DOIs
StatePublished - Sep 1 2010

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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