Critical effect of the bottom electrode on the ferroelectricity of epitaxial Hf<sub>0.5</sub>Zr<sub>0.5</sub>O<sub>2</sub>thin films
Saúl Estandía, Jaume Gàzquez, M. Varela, N. Dix, Mengdi Qian, Raúl Solanas, Ignasi Fina, F. Sánchez
Abstract
Comparison of a set of perovskite electrodes shows that La<sub>1−x</sub>(Ca,Sr)<sub>x</sub>MnO<sub>3</sub>is critical to stabilize the ferroelectric orthorhombic phase in epitaxial films. The stabilization is favored if the La content in the manganite is high.
Topics & Concepts
Orthorhombic crystal systemFerroelectricityMaterials scienceEpitaxyManganitePerovskite (structure)ElectrodeThin filmCondensed matter physicsPhase (matter)CrystallographyOptoelectronicsCrystal structureNanotechnologyDielectricFerromagnetismPhysical chemistryLayer (electronics)ChemistryOrganic chemistryPhysicsFerroelectric and Negative Capacitance DevicesFerroelectric and Piezoelectric MaterialsElectronic and Structural Properties of Oxides