We have investigated the role of pseudospin polarization in electron wave packet dynamics in pristine graphene and in a graphene antidot lattice subject to an external magnetic field. By employing Green’s function formalism, we show that the electron dynamics can be controlled by tuning pseudospin polarization. We find that in Landau quantized pristine graphene, both the propagation of an electron wave packet and Zitterbewegung oscillations strongly depend on pseudospin polarization. The electron wave packet is found to propagate in the direction of initial pseudospin polarization. We also show that, in this system, the propagation of an electron can be enhanced in any desired direction by carving a one-dimensional antidot lattice in that direction. The study suggests that a graphene antidot lattice can serve as a channel for electron transport with the possibility of tunability by means of pseudospin polarization, antidot potential, and applied normal magnetic field strength.
Skip Nav Destination
,
,
Article navigation
21 February 2021
Research Article|
February 17 2021
Effect of pseudospin polarization on wave packet dynamics in graphene antidot lattices (GALs) in the presence of a normal magnetic field
R. A. W. Ayyubi
;
R. A. W. Ayyubi
a)
1
Department of Physics, Quaid-I-Azam University
, Islamabad 45320, Pakistan
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
N. J. M. Horing
;
N. J. M. Horing
2
Department of Physics, Stevens Institute of Technology
, Hoboken, New Jersey 07030, USA
Search for other works by this author on:
K. Sabeeh
K. Sabeeh
1
Department of Physics, Quaid-I-Azam University
, Islamabad 45320, Pakistan
Search for other works by this author on:
R. A. W. Ayyubi
1,a)
N. J. M. Horing
2
K. Sabeeh
1
1
Department of Physics, Quaid-I-Azam University
, Islamabad 45320, Pakistan
2
Department of Physics, Stevens Institute of Technology
, Hoboken, New Jersey 07030, USA
a)Author to whom correspondence should be addressed: [email protected]
J. Appl. Phys. 129, 074301 (2021)
Article history
Received:
November 20 2020
Accepted:
January 31 2021
Citation
R. A. W. Ayyubi, N. J. M. Horing, K. Sabeeh; Effect of pseudospin polarization on wave packet dynamics in graphene antidot lattices (GALs) in the presence of a normal magnetic field. J. Appl. Phys. 21 February 2021; 129 (7): 074301. https://doi.org/10.1063/5.0038316
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
A step-by-step guide to perform x-ray photoelectron spectroscopy
Grzegorz Greczynski, Lars Hultman
Phase-change materials and their applications
Nelson Sepúlveda, Yunqi Cao
Decoding diffraction and spectroscopy data with machine learning: A tutorial
D. Vizoso, R. Dingreville
Related Content
Dichalcogenide Landau miniband dynamics and spectrum in an antidot superlattice
AIP Advances (March 2020)
Identifying Dirac cones in carbon allotropes with square symmetry
J. Chem. Phys. (November 2013)
Andreev reflection imaging and longitudinal shift of pseudospin-1 fermions in two-dimensional materials
Appl. Phys. Lett. (December 2023)
Abnormal pseudospin-degenerate states in a graphene quantum dot with double vacancy defects
J. Appl. Phys. (July 2012)
Pseudospin-dependent acoustic topological edge and corner states in silica aerogel metamaterials
J. Acoust. Soc. Am. (May 2024)