Unexpected crystal and domain structures and properties in compositionally graded PbZr(1-x)Ti(x)O3 thin films.
- Author(s): Mangalam, RVK
- Karthik, J
- Damodaran, Anoop R
- Agar, Joshua C
- Martin, Lane W
- et al.
Published Web Locationhttps://doi.org/10.1002/adma.201204240
Synthesis of compositionally graded versions of PbZr(1-x)Ti(x)O3 thin films results in unprecedented strains (as large as ≈4.5 × 10(5) m(-1)) and correspondingly unexpected crystal structures, ferroelectric domain structures, and properties. This includes the observation of built-in electric fields in films as large as 200 kV/cm. Compositional and strain gradients could represent a new direction of strain-control of materials.