Spectroscopic experiments were carried out to directly measure the electric‐field‐induced microstructural changes in PVF 2 at high temperature (65°C). We found, in comparison with roomtemperature measurements, that the reduction of the coercive field is directly related to faster dipolar orientation at this temperature. Furthermore, the α to β or δ phase transformation can take place at a much faster rate and lower field strength than has been previously reported either theoretically experimentally.
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Lu et al. (1984) studied this question.