Structural behaviour of BiFeO3/SrRuO3 superlattices: an X-ray diffraction and Raman spectroscopy investigation
| Autor: | Houssny Bouyanfif, M. El Marssi, S. Yousfi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Diffraction
Condensed Matter - Materials Science Materials science Condensed matter physics Superlattice Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Epitaxy 01 natural sciences Pulsed laser deposition Tetragonal crystal system symbols.namesake 0103 physical sciences X-ray crystallography symbols General Materials Science Orthorhombic crystal system Electrical and Electronic Engineering 010306 general physics 0210 nano-technology Raman spectroscopy |
| Popis: | Epitaxial BiFeO3/SrRuO3 superlattices have been grown by pulsed laser deposition on a (001) oriented LaAlO3 substrate and probed by X-ray diffraction and Raman spectroscopy. To investigate the structural competition between rhombohedral BiFeO3 and orthorhombic SrRuO3 the total thickness of all SLs was kept constant and the bilayer thickness (period) {\Lambda} was varied. The interlayer strain effects are therefore tuned from large strain effects (short {\Lambda} period) to quasi-relaxed structure (large {\Lambda}). A complementary investigation using X-ray diffraction and phonon dynamics hints to change from a rhombohedral to a tetragonal structure in the superlattices with the increase of the interlayer strain effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|