13 April 2024
Gray Little Hall
America/Chicago timezone

Large Area Exfoliation of 2D Ferromagnetic Semiconductors

13 Apr 2024, 12:00
1h
1144, 1146, 1154 (Gray Little Hall)

1144, 1146, 1154

Gray Little Hall

Speaker

Jared Madsen (University of Kansas)

Description

By maintaining magnetic order down to the single atomic layer limit, two-dimensional magnets (2D magnets) significantly broadened modern understanding of magnetism and revived interest in 2D materials for industrial applications. In particular, 2D magnets can serve as building blocks for emerging spintronics devices. The main limitation in large-scale applications of 2D magnets is that typical lateral sample sizes that can be achieved in research laboratories with micromechanical exfoliation are between 10 and 100 $\mu$m. This project aims to develop reliable macroscopic metal-assisted exfoliation of atomically thin films of 2D magnetic semiconductors such as CrSBr and CrOCl. We modified several gold-assisted exfoliation methods traditionally used on transition metal dichalcogenides (TMDs) to create large-area homogeneous films of selected 2D magnets. To assess the quality of the resulting films we use a combination of electrical transport measurements and atomic force microscopy (AFM).

Primary author

Jared Madsen (University of Kansas)

Co-author

Prof. Dmitry Ovchinnikov (University of Kansas)

Presentation materials

There are no materials yet.