https://doi.org/10.1140/epjb/s10051-023-00532-z
Regular Article - Mesoscopic and Nanoscale Systems
Edge states transport with impurity/defect in the quantum limit: applied to the relativistic quasiparticles systems
1
College of Physics and Electronic Engineering, Xinyang Normal University, 464000, Xinyang, People’s Republic of China
2
Engineering Research Center for MXene Energy Storage Materials of Henan Province, Xinyang Normal University, 464000, Xinyang, People’s Republic of China
Received:
28
February
2023
Accepted:
2
May
2023
Published online:
5
June
2023
Using the extended scattering matrix method, the authors explore the interference of edge states in the nanoribbon resonant structure with the relativistic quasiparticles in the quantum limit. By varying the chemical potential in the gated region, the structure of the junction, and the number of the scattering impurities/defects, the scattering coefficients of the edge states can be tuned efficiently. In particular, the Fabry–Pérot like interference in the present structure has been found and the phase accumulated highly depends on both the modes propagating vertically to the interface and the modes propagating along the interface. The feature is fundamentally different from the case of the conventional material where the longitudinal resonant states of the narrow constriction give rise to a clear conductance dips. These results are crucial and useful for engineering nanoelectronic devices based on the relativistic quasiparticles systems.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
