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. 2022 Jun 28;13:3723. doi: 10.1038/s41467-022-31531-w

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — a, b Magnetic field dependent SMR curves in control samples Fe₂O₃/Pt (a) and Cr₂O₃/Fe₂O₃/Pt (b) at 300 K. ΔR_SMR denotes the difference between resistance and the minimum one. Inserts are experimental set-up. c HAADF-STEM image of the Fe₂O₃/Cr₂O₃/Fe₂O₃ junction. d SMR signals of Fe₂O₃/Cr₂O₃/Fe₂O₃/Pt samples at 300 K. e Simulated SMR curve of Fe₂O₃/Cr₂O₃/Fe₂O₃/Pt samples at 300 K. Inserts are diagram of magnetic configurations at typical magnetic fields. f–h Normalized XAS and XMLD spectra of Fe₂O₃/Cr₂O₃/Fe₂O₃ (f), Cr₂O₃/Fe₂O₃ (g) and Fe₂O₃ (h) samples. The XMLD spectra were taken from the differences of XAS spectra (XAS_⊥–XAS_//) and then multiply by a factor of 5 at the absorption edges for clarity. The highlighted region denotes Fe-L₂ edge and the vertical dotted lines are guidance for eyes to mark the valleys and peaks in XMLD curves.