Room temperature Epitaxial Stabilization of a Tetragonal Phase in ARuO3 (A=Ca,Sr) Thin Films

Abstract

We demonstrate that SrRuO3 and CaRuO3 thin films undergo a room temperature structural phase transition driven by the substrate imposed epitaxial biaxial strain. As tensile strain increases, ARuO3 (A=Ca, Sr) films transform from the orthorhombic phase which is usually observed in bulk SrRuO3 and CaRuO3 at room temperature, into a tetragonal phase which in bulk samples is only stable at higher temperatures. More importantly, we show that the observed phenomenon strongly affects the electronic and magnetic properties of ARuO3 thin films that are grown on different single crystal substrates which in turn offers the possibility to tune these properties.

7 pages, 4 figures

References in corpus (5)

• Ferroelectricity in ultra-thin perovskite films
• Dependence of electronic structure of SrRuO3 and the degree of correlation on cation off-stoichiometry
• Role of covalency in the ground state properties of perovskite ruthenates: A first principle study using local spin density approximations
• Studies on the Weak Itinerant Ferromagnet SrRuO3 under High Pressure to 34 GPa
• Strain-induced single-domain growth of epitaxial SrRuO3 layers on SrTiO3: a high-temperature x-ray diffraction study

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• Atomic and Electronic Structures of Correlated SrRuO3/SrTiO3 Superlattices
• Tuning Structural, Transport and Magnetic Properties of Epitaxial SrRuO3 through Ba-Substitution