Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 57: Posters Magnetism II
MA 57.40: Poster
Donnerstag, 19. März 2020, 15:00–18:00, P3
Investigation of highly ordered granular GMR structures manufactured by focused electron beam induced deposition of Co — •Björn Büker1, Laila Bondzio1, Daniel Kappe1, Christian Schröder2, Inga Ennen1, and Andreas Hütten1 — 1Bielefeld University, Bielefeld, Germany — 2FH Bielefeld University of Applied Sciences, Bielefeld, Germany
Recently focused electron beam induced deposition of metals from metal-organic precursor molecules (FEBID) has attracted a lot of attention for successfully printing 3D structures with sub-micron resolution1. In this work we deposited Co from the precursor Co2(CO)8 to investigate the magnetic properties of FEBID materials, which tend to be granular and embedded in a C matrix in the as deposited state. Furthermore different approaches to purification of the deposited Co structures are compared with regard to the effect on their magnetic properties. Simulations on highly ordered granular magnetic structures show a potential high giant magnetoresistance (GMR) when embedded in a weakly conducting matrix. Ultimately, we are depositing highly lattices of Co islands with FEBID in conjunction with a conducting gel matrix to verify these simulations and to assess the viability of such devices in a sensor application.
References
1. Huth et. al. Focused electron beam induced deposition meets materials science, Microelectronic Engineering 185-186, 2018