Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HL: Fachverband Halbleiterphysik
HL 29: Poster II
HL 29.3: Poster
Dienstag, 18. März 2025, 18:00–20:00, P1
Preparation of folded graphene heterostructures via dry transfer — •Hannes Kakuschke1, Dustin Wittbrodt2, Lina Bockhorn1, and Rolf Haug1 — 1Institut für Festkörperphysik, Leibniz Universität Hannover, 30167 Hannover, Germany — 2Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany
Mono- and bilayer systems of graphene have been extensively researched due to their unique magnetic and electronic transport properties. In more recent work, folded graphene [1, 2] heterostructures exhibit fascinating phenomena. This is due to the topology of the folded region, causing effects such as snake states and zero line modes. However, in transport measurements of self-assembled, folded graphene [3], multiple effects occur simultaneously. This drastically complicates the analysis of individual contributions. To solve this problem, we use the dry transfer method to fold graphene around hBN, decoupling the overlapping graphene regions.
To simulate the behaviour of such samples, Tight-Binding model calculations [4], considering strain
effects [5] at the folded edge have been carried out.
[1] J. C. Rode et al., Ann. Phys. 529, 1700025 (2017).
[2] J. C. Rode et al., 2D Mater. 6, 015021 (2018).
[3] L. Bockhorn et al., Appl. Phys. Lett. 118, 173101 (2021).
[4] M. Koshino & T. Ando, Solid State Commun. 149, 1123-1127 (2009).
[5] A. R. Botello-Méndez et al., JPC C. 122 (27), 15753-15760 (2018).
Keywords: graphene; folded graphene; dry transfer method; snake states; zero line modes