High-frequency dispersion of ultrasonic velocity and attenuation of single-crystal 0.72 Pb(Mg1/3Nb2/3)O3–0.28 PbTiO3 with engineered domain structures
Wenhua JiangMaterials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802Wenwu CaoMaterials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802Pengdi Han
2002en
ABI
Annotatsiya
Using ultrasonic spectroscopy, the frequency dispersions of ultrasonic velocity and attenuation were measured for single crystal 0.72 Pb(Mg1/3Nb2/3)−0.28 PbTiO3 (PMN−28%PT) with engineered domain structures in the frequency range of 50–110 MHz. We found that the velocity dispersion and attenuation are very small for the longitudinal wave propagating along [001] of the pseudotetragonal state. Our results imply that the developed domain-engineered PMN-PT single crystals, which have extremely large d33 and k33, have great potential for high-frequency applications.
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