%0 Journal Article
%A Wilhelm, Marek
%A Giesen, Margret
%A Duchoň, Tomáš
%A Moors, Marco
%A Mueller, David N.
%A Hackl, Johanna
%A Baeumer, Christoph
%A Hamed, Mai Hussein
%A Cao, Lei
%A Zhang, Hengbo
%A Petracic, Oleg
%A Glöß, Maria
%A Cramm, Stefan
%A Nemšák, Slavomír
%A Wiemann, Carsten
%A Dittmann, Regina
%A Schneider, Claus M.
%A Müller, Martina
%T Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3
%J APL materials
%V 8
%N 11
%@ 2166-532X
%C Melville, NY
%I AIP Publ.
%M FZJ-2020-04272
%P 111102
%D 2020
%X 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 La0.7Sr0.3MnO3 (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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000589751800001
%R 10.1063/5.0022150
%U https://juser.fz-juelich.de/record/886104