Optimized fabrication of high quality La0.67Sr0.33MnO3 thin films considering all essential characteristics

Abstract

In this article, an overview of the fabrication and properties of high quality La0.67Sr0.33MnO3 (LSMO) thin films is given. A high quality LSMO film combines a smooth surface morphology with a large magnetization and a small residual resistivity, while avoiding precipitates and surface segregation. In literature, typically only a few of these issues are adressed. We therefore present a thorough characterization of our films, which were grown by pulsed laser deposition. The films were characterized with reflection high energy electron diffraction, atomic force microscopy, x-ray diffraction, magnetization and transport measurements, x-ray photoelectron spectroscopy and scanning transmission electron microscopy. The films have a saturation magnetization of 4.0 μB/Mn, a Curie temperature of 350 K and a residual resistivity of 60 μΩcm. These results indicate that high quality films, combining both large magnetization and small residual resistivity, were realized. A comparison between different samples presented in literature shows that focussing on a single property is insufficient for the optimization of the deposition process. For high quality films, all properties have to be adressed. For LSMO devices, the thin film quality is crucial for the device performance. Therefore, this research is important for the application of LSMO in devices.

Accepted for publication in Journal of Physics D - Applied Physics

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Cited by in corpus (20)

• High temperature magnetic insulating phase in ultrathin La0.67Sr0.33MnO3 films
• Preventing the reconstruction of the polar discontinuity at oxide heterointerfaces
• Determining the Curie temperature of La0.67Sr0.33MnO3 thin films
• Thickness dependent properties in oxide heterostructures driven by structurally induced metal-oxygen hybridization variations
• The origin of the dead-layer at the La0.67Sr0.33MnO3/SrTiO3 interface and dead-layer reduction via interfacial engineering
• Thickness dependence of dynamic and static magnetic properties of pulsed laser deposited La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ films on SrTiO${}_3$(001)
• Conditions for the growth of smooth La0.7Sr0.3MnO3 thin films by pulsed electron ablation
• Structural Distortions At Polar Manganite Interfaces
• Magnetic Domain Structure of La0.7Sr0.3MnO3 thin-films probed at variable temperature with Scanning Electron Microscopy with Polarization Analysis
• Thermodynamic conditions during growth determine the magnetic anisotropy in epitaxial thin-films of La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$
• Magnetic Dead Layers in La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ Revisited
• Epitaxial growth and properties of La0.7Sr0.3MnO3 thin films with micrometer wide atomic terraces
• Gate tunable spin-orbit coupling and weak antilocalization effect in an epitaxial La${}_{2/3}$Sr${}_{1/3}$MnO${}_3$ thin film
• Octahedral coupling in (111)- and (001)-oriented La${}_{2/3}$Sr${}_{1/3}$MnO${}_3$/SrTiO${}_3$ heterostructures
• Unusual direction-dependent magnetic orbital moment obtained from X-ray magnetic circular dichroism in a multiferroic oxide system
• Impact of epitaxial strain relaxation on ferromagnetism in a freestanding La2/3Sr1/3MnO3 membrane
• Tailoring epitaxial growth and magnetism in La1-xSrxMnO3 / SrTiO3 heterostructures via temperature-driven defect engineering
• Point contact investigations of film and interface magnetoresistance of La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ heterostructures on Nb:SrTiO${}_3$
• Growth-sequence-dependent interface magnetism of SrIrO${}_3$ - La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ bilayers
• Magnetocaloric properties of an inhomogeneous magnetic thin film of 7.6 nm La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ grown on SrTiO${}_{3.}$