Orthorhombic GdMnO 3 Epitaxial Thin Film Grown onto SrTiO 3 (110)

GdMnO3 epitaxial thin films were deposited onto (110)-oriented SrTiO3 substrates by RF magnetron sputtering. The structure, microstructure, dielectric and magnetic properties were investigated in detail. The XRD results revealed that the GdMnO3 thin films exhibit an epitaxial strained orthorhombic s...

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Bibliographic Details
Published in:EPJ Web of conferences 2020, Vol.233, p.5005
Main Authors: Machado, P., Figueiras, F.G., Vilarinho, R., Fernandes, J.R.A., Tavares, P.B., Rosário Soares, M., Cardoso, S., Almeida, A., Agostinho Moreira, J.
Format: Article
Language:English
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Summary:GdMnO3 epitaxial thin films were deposited onto (110)-oriented SrTiO3 substrates by RF magnetron sputtering. The structure, microstructure, dielectric and magnetic properties were investigated in detail. The XRD results revealed that the GdMnO3 thin films exhibit an epitaxial strained orthorhombic symmetry and grow preferably in off-plane (001) orientation, wherein the basal lattice parameters are strained by the substrate lattice. A dielectric relaxation process was ascertained, whose activation energy is sensitive to the magnetic phase transitions, occurring at 41 K and at 20 K, respectively. The canted nature of the low temperature magnetic phase is discussed.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/202023305005