Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session K21: Emergent Properties: Synthesis and Interfacial Effects
3:00 PM–6:00 PM,
Tuesday, March 5, 2024
Room: 101A
Sponsoring
Unit:
GMAG
Chair: Jennifer Fowlie, Stanford University
Abstract: K21.00005 : Control of oxygen octahedral coupling and magnetic anisotropy in SrRuO3/LaNiO3 superlattices*
4:12 PM–4:24 PM
Presenter:
Divine P Kumah
(Duke University)
Authors:
Divine P Kumah
(Duke University)
Xuanyi Zhang
(North Carolina State University)
Ionela Lindfors-Vrejoiu
(University of Cologne, Institute of Physics)
tool for stabilizing novel magnetic and electronic states. Competing structural and magnetic interactions at coherent interfaces between atomically thin complex oxides can lead to magnetic properties not found in bulk. Here, we show that the magnetic anisotropy is reversed from out-of-plane to in-plane in SrRuO3/ N unit cell LaNiO3 superlattices compressively strained to (001)-SrTiO3 when the LaNiO3 thickness, N, increases from 2 unit cells to 4 unit cells. Using synchrotron X-ray scattering and first-principles theory, we show that the coupling of the oxygen octahedra at the SrRuO3-LaNiO3 interface induces a structural transition in the SrRuO3 layer, which results in the changes to the magnetocrystalline anisotropy.
*This work is supported by the National Science Foundation under Grant No. NSF DMR-1751455
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