| Autor: |
Fedosov, Sergei N., von Seggern, Heinz |
| Předmět: |
|
| Zdroj: |
Journal of Applied Physics; 8/15/2004, Vol. 96 Issue 4, p2173-2180, 8p, 2 Charts, 6 Graphs |
| Abstrakt: |
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 100 μs. The switched back polarization decreases to zero for poling times smaller than 1 μs and times exceeding 1 s. 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
