Epitaxial growth and thermodynamic stability of SrIrO3/SrTiO3 heterostructures
arXiv:1605.02617 · doi:10.1063/1.4960101
Abstract
Obtaining high-quality thin films of 5d transition metal oxides is essential to explore the exotic semimetallic and topological phases predicted to arise from the combination of strong electron correlations and spin-orbit coupling. Here, we show that the transport properties of SrIrO3 thin films, grown by pulsed laser deposition, can be optimized by considering the effect of laser-induced modification of the SrIrO3 target surface. We further demonstrate that bare SrIrO3 thin films are subject to degradation in air and are highly sensitive to lithographic processing. A crystalline SrTiO3 cap layer deposited in-situ is effective in preserving the film quality, allowing us to measure metallic transport behavior in films with thicknesses down to 4 unit cells. In addition, the SrTiO3 encapsulation enables the fabrication of devices such as Hall bars without altering the film properties, allowing precise (magneto)transport measurements on micro- and nanoscale devices.
5 pages, 3 figures
References in corpus (7)
- Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO
- Topological semimetals with Riemann surface states
- Compressive strain-induced metal-insulator transition in orthorhombic SrIrO3 thin films
- Tunable Semimetallic State in Compressive-strained SrIrO3 Films Revealed by Transport Behaviors
- Topological crystalline semimetals in non-symmorphic lattices
- Epitaxial growth and thermodynamic stability of SrIrO3/SrTiO3 heterostructures
- Topological Crystalline Metal in Orthorhombic Perovskite Iridates
Cited by in corpus (20)
- Spin-orbit semimetal SrIrO in the two-dimensional limit
- Dimensionality-driven metal-insulator-transition in spin-orbit coupled SrIrO
- Berry phase engineering at oxide interfaces
- Chiral Ordering Spin Associated Glass like State in SrRuO3SrIrO3 Superlattice
- Epitaxial growth and thermodynamic stability of SrIrO3/SrTiO3 heterostructures
- Relativistic +BSE study of the optical properties of Ruddlesden-Popper iridates
- Review of Spin Orbit Coupled Semimetal SrIrO3 in thin film form
- Balanced electron-hole transport in spin-orbit semimetal SrIrO3 heterostructures
- Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics
- Growth and engineering of perovskite SrIrO3 thin films
- Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
- Coupling lattice instabilities across the interface in ultrathin oxide heterostructures
- Structural properties and anisotropic electronic transport in SrIrO3 films
- Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
- Charge doping and large lattice expansion in oxygen-deficient heteroepitaxial WO3
- Suppression of twinning and enhanced electronic anisotropy of SrIrO3 films
- Magnetotransport of SrIrO3 films on (110) DyScO3
- Anomalous pressure dependence of the electronic transport and anisotropy in SrIrO3 films
- Large Rashba parameter for 4d strongly correlated perovskite oxide SrNbO3 ultrathin films
- Two dimensional electron gas in the -doped iridates with strong spin-orbit coupling: LaSrIrO