| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Alford, N. M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2015Obtaining strong ferromagnetism in diluted Gd-doped ZnO thin films through controlled Gd-defect complexescitations
- 2015Defect-band mediated ferromagnetism in Gd-doped ZnO thin filmscitations
- 2012Spectroscopic ellipsometry as an optical probe of strain evolution in ferroelectric thin filmscitations
- 2011Microwave Debye relaxation analysis of dissolved proteinscitations
- 2009Development of novel multiferroic composites based on BaTiO3 and hexagonal ferrites
Places of action
| Organizations | Location | People |
|---|
article
Spectroscopic ellipsometry as an optical probe of strain evolution in ferroelectric thin films
Abstract
Heteroepitaxial strain in ferroelectric thin films is known to have a significant impact on both their low and high frequency dielectric properties. In this paper, we use <i>ex-situ</i> spectroscopic ellipsometry to study the strain evolution with film thickness, and strain relaxation in ferroelectric Ba<sub>0.5</sub>Sr<sub>0.5</sub>TiO<sub>3</sub> epitaxial films grown on single crystal substrates. For films grown on MgO substrates, a critical thickness for strain relaxation is observed. In addition, studies of Ba<sub>0.5</sub>Sr<sub>0.5</sub>TiO<sub>3</sub> films grown on different single crystal substrates reveal that the strain relaxation rate can be inferred from changes in the optical properties. Using this information, we show that the optical constants of Ba<sub>0.5</sub>Sr<sub>0.5</sub>TiO<sub>3</sub> can be readily tuned via strain engineering.