Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session S09: Topology in Twisted Multilayer Graphene
8:00 AM–11:00 AM,
Thursday, March 7, 2024
Room: L100J
Sponsoring
Unit:
DCMP
Chair: Enrique Munoz, Pontificia Universidad Catolica de Chile
Abstract: S09.00015 : Perpendicular electronic transport and moiré-induced resonance in twisted interfaces of 3D graphite
10:48 AM–11:00 AM
Presenter:
Tenta Tani
(Osaka Univ)
Authors:
Tenta Tani
(Osaka Univ)
Takuto Kawakami
(Osaka Univ)
Mikito Koshino
(Osaka Univ)
The perpendicular electric conduction in twisted systems was probed in a recent experiment [2] while the transmission across the twisted interface has not been well examined theoretically. In this study, we develop a formulation for the electronic transport in the twisted 3D system, which is a pair of 3D materials stacked with a twist angle, by using the effective continuum model and recursive Green’s function method.
We apply the method to twisted graphite (rotationally-stacked graphite pieces), which is one of the simplest twisted 3D systems.
In the twisted graphite, we found that the perpendicular conductivity depends on the twist angle non-monotonously, and it cannot be explained by a simple picture based on the Fermi-surface overlap. We reveal that the anomalous twist-angle dependence is due to the Fano resonance by an interface-localized state, which is a remnant of the flat state of magic-angle twisted bilayer graphene. The existence of the interface-localized state is confirmed by calculating the local density of states using the recursive Green’s function method.
[1] T. Tani, T. Kawakami, M. Koshino, arXiv:2308.03993
[2] A. Inbar et al., Nature 614, 682 (2023).
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700