Ultrathin ferroelectric Langmuir–Blodgett films are studied using an electrostatic force microscope (EFM). The films were deposited by a subsequent transfer of monolayers of a ferroelectric polymer from the water surface onto Si substrates covered with Al electrodes. A film was switched locally by a voltage applied between a tip and the Al electrode. The dynamics of the electric field relief above a switched ferroelectric domain is studied by EFM imaging with simultaneous control of the topographic relief. In order to explain an image contrast a simple model for a thin ferroelectric film is discussed which takes into account the remanent polarization of the film, the surface charge, and interface work functions.
Switching of a ferroelectric polymer Langmuir-Blodgett film studied by Electrostatic Force Microscopy / L. M., Blinov; Barberi, Riccardo Cristoforo; S. P., Palto; DE SANTO, Maria Penelope; S. G., Yudin. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - 89:7(2001), pp. 3960-3966.
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Titolo: | Switching of a ferroelectric polymer Langmuir-Blodgett film studied by Electrostatic Force Microscopy |
Autori: | |
Data di pubblicazione: | 2001 |
Rivista: | |
Citazione: | Switching of a ferroelectric polymer Langmuir-Blodgett film studied by Electrostatic Force Microscopy / L. M., Blinov; Barberi, Riccardo Cristoforo; S. P., Palto; DE SANTO, Maria Penelope; S. G., Yudin. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - 89:7(2001), pp. 3960-3966. |
Handle: | http://hdl.handle.net/20.500.11770/124695 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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