It is shown by the example of poly(vinylidene fluoride) that back-switching of ferroelectric polarization in two-component systems during short circuiting after initial poling depends on the poling time and exhibits a maximum in samples poled for about . The switched back polarization decreases to zero for poling times smaller than and times exceeding . The phenomenon is explained on the basis of a model proposed earlier for polarization buildup in two-component ferroelectrics taking into account the role of conductivity induced interfacial charge accumulation at the boundaries between ferroelectric and nonferroelectric components.
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.© 2004 American Institute of Physics.
2004
American Institute of Physics
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