Switching Mechanism in Single Crystal 0.955Pb(Zn1/3Nb2/3)O3-0.045PbTiO3
نویسندگان
چکیده
Direct experimental evidence is given to show that the traditional viewpoint of polarization reversal must be modified to include the path of consecutive non-180◦ domain switching. Using ultrasonic waves, we have successfully monitored multi-domain formation during the polarization switching cycle in a bulk single crystal 0.955Pb(Zn1/3Nb2/3)O3-0.045PbTiO3. A model is proposed for the polarization reversal mechanism in this system. This model is supported by ultrasonic attenuation measurements.
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