Conductivity of a superlattice based on the semi-Dirac crystals

The current-voltage characteristic of a superlattice based on the semi-Dirac crystals has been studied. The case of the absence of a gap between valence and conduction mini-band has been considered. Such a superlattice has been shown to be characterized by both semi-metal and narrow-band semiconduct...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-12, Vol.1697 (1), p.12199
Main Authors: Kryuchkov, S V, Kukhar, E I, Nikolaeva, L N
Format: Article
Language:English
Subjects:
Brillouin zones
Conduction bands
Current voltage characteristics
Depletion
Electrical properties
Physics
Superlattices
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Summary:The current-voltage characteristic of a superlattice based on the semi-Dirac crystals has been studied. The case of the absence of a gap between valence and conduction mini-band has been considered. Such a superlattice has been shown to be characterized by both semi-metal and narrow-band semiconductor electrical properties. From the one hand there is the point in the Brillouin zone close to which the depletion of the states occurs without gap opening. From the other hand there is the portion of negative differential conductivity in the current-voltage characteristic. The dependences of longitudinal conductivity and maximum of the current-voltage characteristic on the Fermi energy have been investigated.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1697/1/012199