Tuning electromagnetic properties of SrRuO3 epitaxial thin films via atomic control of cation vacancies

Abstract

Elemental defects in transition metal oxides is an important and intriguing subject that result in modifications in variety of physical properties including atomic and electronic structure, optical and magnetic properties. Understanding the formation of elemental vacancies and their influence on different physical properties is essential in studying the complex oxide thin films. In this study, we investigated the physical properties of epitaxial SrRuO3 thin films by systematically manipulating cation and/or oxygen vacancies, via changing the oxygen partial pressure (P(O2)) during the pulsed laser epitaxy (PLE) growth. Ru vacancies in the low-P(O2)-grown SrRuO3 thin films induce lattice expansion with the suppression of the ferromagnetic TC down to ~120 K. Sr vacancies also disturb the ferromagnetic ordering, even though Sr is not a magnetic element. Our results indicate that both A and B cation vacancies in an ABO3 perovskite can be systematically engineered via PLE, and the structural, electrical, and magnetic properties can be tailored accordingly.

22 pages, 9 figures, 1 table

References in corpus (5)

• Dependence of electronic structure of SrRuO3 and the degree of correlation on cation off-stoichiometry
• Enhanced electrocatalytic activity via phase transitions in strongly correlated SrRuO3 thin films
• Role of covalency in the ground state properties of perovskite ruthenates: A first principle study using local spin density approximations
• Surface properties of atomically flat poly-crystalline SrTiO3
• Polaron transport and thermoelectric behavior in La-doped SrTiO3 thin films with elemental vacancies

Cited by in corpus (10)

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• Materials challenges for SrRuO3: from conventional to quantum electronics
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• Tailoring topological Hall effect in SrRuO3/SrTiO3 superlattices
• Symmetry-Driven Spin-Wave Gap Modulation in Nanolayered SrRuO3/SrTiO3 Heterostructures: Implications for Spintronic Applications
• Epitaxial stabilization of metastable 3C BaRuO3 thin film with ferromagnetic non-Fermi liquid phase
• Defect engineering of magnetic ground state in EuTiO${}_3$ epitaxial thin films
• Crystalline symmetry-dependent magnon formation in itinerant ferromagnet SrRuO3
• Electron-vacancy scattering in SrNbO${}_3$ and SrTiO${}_3$: A DFT-NEGF study
• Dimensionality Engineering of Magnetic Anisotropy from Anomalous Hall Effect in Synthetic SrRuO3 Crystals