Depolarizing-field-mediated 180° switching in ferroelectric thin films with 90° domains
Publication Type | Journal Article
|
---|
Authors | |
---|---|
DOI |
10.1063/1.1448653
|
Abstract |
Switching of the out-of-plane and in-plane polarizations in polydomain epitaxial PbZr0.2Ti0.8O3 thin films is studied using three-dimensional piezoresponse force microscopy (PFM). It is found that, under an electric field induced between the PFM tip and the bottom electrode, the 180° switching occurs in both c and a domains. After the removal of this field, the spontaneous reversal of the out-of-plane and in-plane polarizations back to the initial orientations takes place, evolving via heterogeneous development of antiparallel 180° domains. The switching of in-plane polarization inside a domains and the preferential formation of reversed 180° domains at 90° domain walls are explained by the effects of the depolarizing fields caused by transient polarization charges appearing on these domain walls. © 2002 American Institute of Physics.
|
Notes |
cited By 93
|
Journal |
Applied Physics Letters
|
Volume |
80
|
Year of Publication |
2002
|
Number |
8
|
Pagination |
1424-1426
|
ISSN Number |
00036951
|
Keywords | |
Research Areas | |
Download citation |