Detection of the Chiral Spin Structure in Ferromagnetic SrRuO${}_3$ Thin Film

Abstract

A SrRuO${}_3$ (SRO) thin film and its heterostructure have brought much attention because of the recently demonstrated fascinating properties, such as topological Hall effect and skyrmions. Critical to the understanding of those SRO properties is the study of the spin configuration. Here, we conduct resonant soft x-ray scattering (RSXS) at oxygen K-edge to investigate the spin configuration of a 4 unit-cell SRO film that was grown epitaxially on a single crystal SrTiO${}_3$. The RSXS signal under a magnetic field (~0.4 Tesla) clearly shows a magnetic dichroism pattern around the specular reflection. Model calculations on the RSXS signal demonstrate that the magnetic dichroism pattern originates from a Néel-type chiral spin structure in this SRO thin film. We believe that the observed spin structure of the SRO system is a critical piece of information for understanding its intriguing magnetic and transport properties.

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Cited by in corpus (10)

• Oxide spin-orbitronics: spin-charge interconversion and topological spin textures
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Stable hump-like Hall effect and non-coplanar spin textures in SrRuO${}_3$ ultrathin film
• Origin of the hump anomalies in the Hall resistance loops of ultrathin SrRuO${}_3$/SrIrO${}_3$ multilayers
• Tailoring topological Hall effect in SrRuO3/SrTiO3 superlattices
• Thickness and temperature dependence of the atomic-scale structure of SrRuO${}_3$ thin films
• Chiral surface spin textures in Cu${}_2$OSeO${}_3$ unveiled by soft x-ray scattering in specular reflection geometry
• Introducing new resonant soft x-ray scattering capability in SSRL
• Bounds and anomalies of inhomogeneous anomalous Hall effects
• Anisotropy-driven interfacial magnetism in Ru-deficient SrRuO${}_3$ thin films