Abstract
In general, the ferroelectric properties, such as a piezoelectricity, a permittivity and an electro-optic function, are controlled by external electrical field. To keep these properties, a contentious voltage-supply has been indispensable. On the contrary, this study proposes to realize memory effects on the ferroelectric materials. As one of the examples, the shape memory effect was demonstrated using the imprint electrical field. Control of the imprint was performed under the severe conditions of a very high electrical field and high temperature. After applying a pulse shaped voltage, the piezoelectric shape was kept under zero electric field. With the opposite pulse voltage, it was confirmed that the shape returned to the initial one. In addition to this shape memory effect, the optical transmittance memory effect and the magnetic force memory were also realized.
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Morita, T., Kadota, Y., Ohashi, T., Ozaki, T. (2010). Shape Memory Piezoelectric Actuator and Various Memories in Ferroelectric Materials. In: Higuchi, T., Suzumori, K., Tadokoro, S. (eds) Next-Generation Actuators Leading Breakthroughs. Springer, London. https://doi.org/10.1007/978-1-84882-991-6_13
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DOI: https://doi.org/10.1007/978-1-84882-991-6_13
Publisher Name: Springer, London
Print ISBN: 978-1-84882-990-9
Online ISBN: 978-1-84882-991-6
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