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arXiv · 2603.10794

Electronic Structure and Resonant Circular Dichroism of La$_{0.7}$Sr$_{0.3}$MnO$_3$ from Soft X-ray Angle-Resolved Photoemission

Øyvind Finnseth·Damian Brzozowski·Anders Christian Mathisen·Stefanie Suzanne Brinkman·Xin Liang Tan·Fabian Gohler·Benjamin A. D. Williamson·Kristoffer Eggestad·Meng-Jie Huang·Jens Buck·Moritz Hoesch·Kai Rossnagel·Sverre M. Selbach·Hendrik Bentmann·Ingrid Hallsteinsen
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Abstract

Coupling between spin, orbital, charge, and lattice degrees of freedom in transition-metal oxides produces a variety of electronic and magnetic phenomena of importance for future technologies. Here, we explore the electronic band structure of a (111)-oriented La0.7Sr0.3MnO3 thin film through soft X-ray angle-resolved photoemission spectroscopy (ARPES). The measurements agree with the electronic band structure calculated with density functional theory using Hubbard U correction. Furthermore, we probe the circular dichroism in ARPES, and observe a pronounced momentum- resolved magnetic circular dichroism in resonant photoemission from the Mn L-edge. The approach combines the momentum- and spin-selectivity of ARPES and X-ray magnetic circular dichroism, respectively, which could provide a useful approach for the study of unconventional magnetism.

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Øyvind Finnseth, Damian Brzozowski, Anders Christian Mathisen, Stefanie Suzanne Brinkman, Xin Liang Tan, Fabian Gohler, Benjamin A. D. Williamson, Kristoffer Eggestad, Meng-Jie Huang, Jens Buck, Moritz Hoesch, Kai Rossnagel, Sverre M. Selbach, Hendrik Bentmann, Ingrid Hallsteinsen. 2026-03-11. Electronic Structure and Resonant Circular Dichroism of La$_{0.7}$Sr$_{0.3}$MnO$_3$ from Soft X-ray Angle-Resolved Photoemission. https://arxiv.org/abs/2603.10794

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