Work

An exact diagonalization approach to the electronic structure of quasi-one-dimensional systems

Year: 2026

Type: article

Abstract: An exact diagonalization approach is developed to solve the extended Hubbard model in momentum space, aiming to investigate the electronic and optical properties of quasi-one-dimensional systems. By taking only a small number of k-points, with appropriate parameterization, our method is able to capture the low-energy excitation spectra of graphene nanoribbons, reproduce the essential features of the GW-BSE calculations, and give rise to a result closely aligned with the experiment.

Source: Journal of Applied Physics

DOI: 10.1063/5.0310421

Authors: Wenzhuo Huang, Jun Zhong, Weidong Sheng, Aiping Zhou

Institutions: Fudan University, State Key Laboratory of Surface Physics, Nanjing Institute of Technology

Language: English

Topic: Graphene research and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funder: National Natural Science Foundation of China