Formation of 90° elastic domains during local 180° switching in epitaxial ferroelectric thin films

Journal Article

Chen, L., J. Ouyang, C.S. Ganpule, V. Nagarajan, Ramamoorthy Ramesh, A.L. Roytburd

10.1063/1.1633970

A cylindrical 180° domain was stabilized by the formation of 90° domains to relax stress that arises due to the opposite signs of the converse piezoelectric effects in the switched 180° domain and the unswitched film surrounding. It was found that the formation of 90° domains can be effective mechanism for the piezostress relaxation in 180° domains and their stabilization.

Applied Physics Letters

84

2004

00036951

Ramesh Lab