Switching 70Pb(Mg1/3Nb2/3)O3-0.30PbTiO3 single crystal by 3 MHz bipolar field

Shiyang Li, Zhaojiang Chen, Wenwu Cao

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6 Scopus citations

Abstract

Polarization switching and associated electromechanical property changes at 3.0 MHz were investigated with and without a direct current (dc) bias for [001]c poled 0.70Pb(Mg1/3Nb2/3)O3-0.30PbTiO3 single crystal. The results showed that the coercive field under a bipolar pulse at 3.0 MHz is 2.75 times as large as conventional defined Ec (2.58 kV/cm at 0.1 Hz), and a dc bias can further enlarge the driving field. Our results point to an innovative transducer operating mechanism at high frequencies since one could drive the crystal under much larger fields at high frequencies to produce much stronger signals from a small array element for deeper penetration imaging.

Original languageEnglish (US)
Article number232901
JournalApplied Physics Letters
Volume108
Issue number23
DOIs
StatePublished - Jun 6 2016

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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