Frequency dispersion of ultrasonic velocity and attenuation of longitudinal waves propagating in 0.68Pb(Mg 1/3Nb 2/3)O 3 -0.32PbTiO 3 single crystals poled along [001] and [110]

Rui Zhang, Wenhua Jiang, Wenwu Cao

Research output: Contribution to journalArticle

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Abstract

Using ultrasonic spectroscopy, the frequency dispersion of ultrasonic velocity and attenuation in the frequency range of 50-110 MHz were measured for longitudinal waves propagating in 0.68Pb (Mg13 Nb23) O3 -0.32PbTi O3 (PMN-32%PT) single crystals poled along [001] and [110], respectively. The measured dispersion of longitudinal wave velocity and attenuation in the multidomain PMN-32%PT crystals are smaller than that of PZT-4 but much higher than that of PMN-28%PT poled along [001]. The correlation between larger piezoelectric coefficient and higher attenuation of ultrasonic waves in multiple-domain (1-x) Pb (Mg13 Nb23) O3 -xPbTi O3 single crystal for compositions closer to the morphotropic phase boundary indicates that the physical origin of the higher piezoelectric activity is associated with higher density of non-180° domain walls.

Original languageEnglish (US)
Article number182903
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number18
DOIs
StatePublished - Oct 31 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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