Direct observation of domain wall motion and novel dielectric loss in 0.23Pb(In1/2Nb1/2)O3-0.42Pb(Mg1/3 Nb2/3)O3-0.35PbTiO3 crystals

Authors

Dabin Lin, Xi'an University of Technology
Zhenrong Li, Xi'an Jiaotong University
Fei Li, Xi'an Jiaotong UniversityFollow
Shujun Zhang, Xi'an Jiaotong UniversityFollow

RIS ID

106705

Publication Details

Lin, D., Li, Z., Li, F. & Zhang, S. (2013). Direct observation of domain wall motion and novel dielectric loss in 0.23Pb(In1/2Nb1/2)O3-0.42Pb(Mg1/3 Nb2/3)O3-0.35PbTiO3 crystals. CrystEngComm, 15 (32), 6292-6296.

Abstract

Domain wall motion was directly observed at temperatures near to the monoclinic-to-tetragonal phase transition temperature (TM-T) in [001]-oriented 0.23Pb(In1/2Nb1/2)O3-0. 42Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 (0.23PIN-0.42PMN-0.35PT) single crystals using a polarizing light microscope, and evident 90°and 180°domain switches were observed near the Curie temperature (TC). Two dielectric loss anomalies were observed at temperatures near TM-T in the [001]-oriented PIN-PMN-PT single crystals, while an additional dielectric loss peak was found at temperatures a few degrees below TC, which was associated with domain wall motion. Based on the domain structure observations, a domain switching mechanism was proposed to explain the novel dielectric loss peak at several degrees below TC. 2013 The Royal Society of Chemistry.