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Article dans une revue

Structural behaviour of BiFeO3/SrRuO3 superlattices: An X-ray diffraction and Raman spectroscopy investigation

Abstract : 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) ? was varied. The interlayer strain effects are therefore tuned from large strain effects (short ? period) to quasirelaxed structure (large ?). 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.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03627234
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Soumis le : vendredi 1 avril 2022 - 10:45:20
Dernière modification le : mardi 13 septembre 2022 - 10:32:23

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S. Yousfi, M. El Marssi, H. Bouyanfif. Structural behaviour of BiFeO3/SrRuO3 superlattices: An X-ray diffraction and Raman spectroscopy investigation. Superlattices and Microstructures, Elsevier, 2021, 156, ⟨10.1016/j.spmi.2021.106983⟩. ⟨hal-03627234⟩

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