Abstract
Variable temperature atomic force microscopy and scanning surface potential microscopy are used to characterize the ferroelectric BaTiO3 (100) surface. The influence of domain structure on surface topography and surface potential distribution is discussed. Domain induced surface corrugations were found to disappear above the Curie temperature confirming the local phase transition. Associated variations of surface potential are quantified. Relaxation of surface potential after the transition to paraelectric state on heating and during the transition to the ferroelectric state on cooling was observed. Differences in kinetics of the topographic structure and surface potential variations are used to distinguish polarization compensation mechanisms.
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