A Modified Planar Graphene-Based Heterostructure (Barrier—Quantum Well)

A planar graphene-based heterostructure is considered, which behaves differently: as a barrier or a quantum well at small or large momenta of charge carriers, respectively. This heterostructure contains a strip of gapped graphene with a lower Fermi velocity, surrounded by gapless graphene with a hig...

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Bibliographic Details
Published in:Physics of wave phenomena 2019-07, Vol.27 (3), p.204-210
Main Authors: Pekh, P. L., Silin, A. P.
Format: Article
Language:English
Subjects:
Acoustics
Current carriers
Dispersion curve analysis
Graphene
Heterostructures
Physics
Physics and Astronomy
Quantum Optics
Quantum Optics of Heterostructures
Quantum wells
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Summary:A planar graphene-based heterostructure is considered, which behaves differently: as a barrier or a quantum well at small or large momenta of charge carriers, respectively. This heterostructure contains a strip of gapped graphene with a lower Fermi velocity, surrounded by gapless graphene with a higher Fermi velocity. In this configuration, an interface state arises at the intersection point of dispersion curves. The transformation of this interface state into a fundamental bound state is investigated.
ISSN:1541-308X
1934-807X
DOI:10.3103/S1541308X19030063