Andrei Kholkin, Anna Morozovska, Dmitry Kiselev, Igor Bdikin, Brian Rodriguez, Pingping Wu, Alexei Bokov, Zuo-Guang Ye, Brahim Dkhil, Long-Qing Chen, Marija Kosec and Sergei V. Kalinin Surface Domain Structures and Mesoscopic Phase Transition in Relaxor Ferroelectrics Advanced Functional Materials 21
Version of Record online: 12 APR 2011 | DOI: 10.1002/adfm.201002582
Relaxor ferroelectrics are known as an enigma of solid-state physics. Using extensive imaging and spectroscopic studies by variable-temperature and depth-resolved piezoresponse force microscopy, we propose a model explaining their behaviour by introducing two order parameters describing dynamic and static polarization. The surface of relaxors undergoes a symmetry breaking leading to the freezing of polarization fluctuations and shift of transition temperature.
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