Interface control of electronic transport across the magnetic phase transition in SrRuO_3/SrTiO_3 heterointerface

Abstract

The emerging material class of complex-oxides, where manipulation of physical properties lead to new functionalities at their heterointerfaces, is expected to open new frontiers in Spintronics. For example, SrRuO_3 is a promising material where external stimuli like strain, temperature and structural distortions control the stability of electronic and magnetic states, across its magnetic phase transition, useful for Spintronics. Despite this, not much has been studied to understand such correlations in SrRuO_3. Here we explore the influence of electron-lattice correlation to electron-transport, at interfaces between SrRuO_3 and Nb:SrTiO_3 across its ferromagnetic transition, using a nanoscale transport probe and first-principles calculations. We find that the geometrical reconstructions at the interface and hence modifications in electronic structures dominate the transmission across its ferromagnetic transition, eventually flipping the charge-transport length-scale in SrRuO_3. This approach can be easily extended to other devices where competing ground states can lead to different functional properties across their heterointerfaces.

12 pages, 5 figures

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Cited by in corpus (8)

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• Robust skyrmion-bubble textures in SrRuO${}_3$ thin films stabilized by magnetic anisotropy
• Multiple band-crossings and Fermi surface topology: role of double nonsymmorphic symmetries in MnP-type crystal structures
• Topological states in superlattices of HgTe-class materials for engineering three-dimensional flat bands
• Conditions for orbital selective altermagnetism in Sr${}_2$RuO${}_4$: tight binding model, similarities with cuprates and implications on superconductivity
• Ferromagnetic order of ultra-thin La0.7Ba0.3MnO3 sandwiched between SrRuO3 layers
• Ex-situ atomic force microscopy on the growth mode of SrRuO3 epitaxial thin film