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Photoemission electron microscopy of magneto-ionic effects in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>

Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3

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WILHELM, Marek, Margret GIESEN, Tomáš DUCHOŇ, Marco MOORS, David N. MUELLER, Johanna HACKL, Christoph BAEUMER, Mai Hussein HAMED, Lei CAO, Martina MÜLLER, 2020. Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3. In: APL Materials. American Institute of Physics (AIP). 8, 111102. eISSN 2166-532X. Available under: doi: 10.1063/5.0022150

@article{Wilhelm2020Photo-52386, title={Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3}, year={2020}, doi={10.1063/5.0022150}, volume={8}, journal={APL Materials}, author={Wilhelm, Marek and Giesen, Margret and Duchoň, Tomáš and Moors, Marco and Mueller, David N. and Hackl, Johanna and Baeumer, Christoph and Hamed, Mai Hussein and Cao, Lei and Müller, Martina}, note={Article Number: 111102} }

Giesen, Margret Müller, Martina Moors, Marco Duchoň, Tomáš eng Hackl, Johanna 2021-01-13T15:43:00Z Cao, Lei Moors, Marco 2021-01-13T15:43:00Z Wilhelm, Marek Cao, Lei Baeumer, Christoph Photoemission electron microscopy of magneto-ionic effects in La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> Magneto-ionic control of magnetism is a promising route toward the realization of non-volatile memory and memristive devices. Magneto-ionic oxides are particularly interesting for this purpose, exhibiting magnetic switching coupled to resistive switching, with the latter emerging as a perturbation of the oxygen vacancy concentration. Here, we report on electric-field-induced magnetic switching in a La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> (LSMO) thin film. Correlating magnetic and chemical information via photoemission electron microscopy, we show that applying a positive voltage perpendicular to the film surface of LSMO results in the change in the valence of the Mn ions accompanied by a metal-to-insulator transition and a loss of magnetic ordering. Importantly, we demonstrate that the voltage amplitude provides granular control of the phenomena, enabling fine-tuning of the surface electronic structure. Our study provides valuable insight into the switching capabilities of LSMO that can be utilized in magneto-ionic devices. Hamed, Mai Hussein Mueller, David N. Baeumer, Christoph Attribution 4.0 International Mueller, David N. Hackl, Johanna Müller, Martina Duchoň, Tomáš Wilhelm, Marek Hamed, Mai Hussein 2020 Giesen, Margret

Dateiabrufe seit 13.01.2021 (Informationen über die Zugriffsstatistik)

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