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A theoretical interpretation of the pyroelectric response from a scanning micro heat probe

A theoretical model has been developed for analysing pyroelectric response derived from a point heat source scanning across simple ferroelectric domain configurations. The predicted signals have been compared with previous experimental data obtained from the pre-poled specimens of single-crystal barium titanate using a low-energy (0.6 keV) electron beam focused to give a 10 mu m micro heat source (Latham 1963). The theoretical analysis has also been extended to establish the limiting criteria for resolving antiparallel domains in two-dimensional raster display systems.