Work

Sliding-dependent electronic structures of alternating-twist tetralayer graphene

Year: 2024

Type: article

Abstract: Unlike twisted bilayer graphene (TBG), the electronic structures of alternating-twist tetralayer graphene (ATTG) vary with sliding between layers. Here, the authors model the system as two vertically stacked equal twist angle TBG layers. They specifically explore how three sliding geometries (AA, AB, and SP) affect its electronic and optical properties, including valley Chern numbers. The results of optical conductivity and self-consistent Hartree band structures provide deeper insights into ATTG with various sliding configurations and offer potential experimental fingerprints.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.110.115136

Authors: Kyungjin Shin, Jiseon Shin, Yoonsung Lee, Hongki Min, Jeil Jung

Institutions: Seoul National University, University of Seoul, LG (United States), LG (South Korea)

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green