Berlin 2024 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 32: Developement of Calculation Methods I

MM 32.5: Talk

Wednesday, March 20, 2024, 11:15–11:30, C 243

Detecting vacancy defects in graphene nanoribbon: a Floquet-Bloch formalism — Gulshan Kumar, Shashikant Kumar, and •Prakash Parida — Department of Physics, Indian Institute of Technology Patna, Bihta, Patna, India

We prescribe a theoretical approach aimed at predicting the spatial position of monovacancy defects within zigzag graphene nanoribbons (ZGNRs) at edges. Our methodology involves a comprehensive study of the Floquet quasi-energy band structure, specifically under the illuminating influence of circularly polarized light. Notably, our findings reveal that the strategic placement of monovacancy defects at edges in ZGNRs possesses remarkable potential in regulating the influential flat band edge state in the quasi-energy spectrum. These fascinating properties and findings can be harnessed and applied for various practical applications, further highlighting the significance and relevance of our theoretical framework.