Programme

O.10 -- Oral, VCTP-46

Date: Tuesday, 5 October 2021

Time: 11:00 - 11:20

Orbital magnetization in axially symmetric two-dimensional carbon allotrope: influence of electric field and geometry

Dai-Nam Le (1,2), Van-Hoang Le (3), Pinaki Roy (1,2)

(1) Atomic Molecular and Optical Physics Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam; (2) Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam; (3) Department of Physics, Ho Chi Minh City University of Education, 280 An Duong Vuong St., Dist. 5, Ho Chi Minh City, Vietnam.

In this study, we use supersymmetry formalism to study $(2 + 1)$ dimensional Dirac–Weyl equation describing the motion of electrons in different axially symmetric carbon allotrope surfaces under the influence of crossed electromagnetic fields. In particular, we consider three-carbon allotrope with different geometrical shapes and properties: open, half-open, and closed geometries. The effect of the electric field and geometry on Landau levels and orbital magnetization has been examined. It has been shown that at a critical electric field the orbital magnetization exhibits a discontinuity which is associated with the collapse of Landau levels. References: [1] Dai-Nam Le, Van-Hoang Le, and Pinaki Roy 2020 J. Phys.: Condens. Matter 32 385703; [2] Dai-Nam Le, Anh-Luan Phan, Van-Hoang Le, and Pinaki Roy 2019 Physica E107, 60; [3] Dai-Nam Le, Van-Hoang Le, and Pinaki Roy 2019 J. Phys.: Condens. Matter 31 305301 [4] Anh-Luan Phan, Dai-Nam Le, Van-Hoang Le, and Pinaki Roy 2019 Physica E114, 113639 [5] Dai-Nam Le, Anh-Luan Phan, Van-Hoang Le, and Pinaki Roy 2019 EPL 127 10005

Presenter: Le Dai-Nam