Journal Article

FZJ-2020-04272

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3

Wilhelm, M. (Corresponding author)FZJ* ; Giesen, M.FZJ* ; Duchoň, T.FZJ* ; Moors, M. ; Mueller, D. N.FZJ* ; Hackl, J. ; Baeumer, C.FZJ* ; Hamed, M. H.FZJ* ; Cao, L. ; Zhang, H.FZJ* ; Petracic, O.FZJ* ; Glöß, M.FZJ* ; Cramm, S.FZJ* ; Nemšák, S.FZJ* ; Wiemann, C.FZJ* ; Dittmann, R.FZJ* ; Schneider, C. M.FZJ* ; Müller, M.FZJ*

2020
AIP Publ. Melville, NY

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/26075  doi:10.1063/5.0022150

Abstract: 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.

---

Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)
2. Elektronische Materialien (PGI-7)
3. Streumethoden (JCNS-2)
4. Streumethoden (PGI-4)
5. JARA-FIT (JARA-FIT)
6. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. 522 - Controlling Spin-Based Phenomena (POF3-522) (POF3-522)
2. DFG project 167917811 - SFB 917: Resistiv schaltende Chalkogenide für zukünftige Elektronikanwendungen: Struktur, Kinetik und Bauelementskalierung "Nanoswitches" (167917811) (167917811)

Appears in the scientific report 2020

---

Database coverage:
; ; ; ; Article Processing Charges ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; Fees ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---