TY  - JOUR
AU  - Wilhelm, Marek
AU  - Giesen, Margret
AU  - Duchoň, Tomáš
AU  - Moors, Marco
AU  - Mueller, David N.
AU  - Hackl, Johanna
AU  - Baeumer, Christoph
AU  - Hamed, Mai Hussein
AU  - Cao, Lei
AU  - Zhang, Hengbo
AU  - Petracic, Oleg
AU  - Glöß, Maria
AU  - Cramm, Stefan
AU  - Nemšák, Slavomír
AU  - Wiemann, Carsten
AU  - Dittmann, Regina
AU  - Schneider, Claus M.
AU  - Müller, Martina
TI  - Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3
JO  - APL materials
VL  - 8
IS  - 11
SN  - 2166-532X
CY  - Melville, NY
PB  - AIP Publ.
M1  - FZJ-2020-04272
SP  - 111102
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000589751800001
DO  - DOI:10.1063/5.0022150
UR  - https://juser.fz-juelich.de/record/886104
ER  -