The Hubbard model and the absolute negative conductivity of graphene
Mikhail Belonenko, Nikolay Lebedev, Masgut Shakirzyanov, Natalia, Yanyushkina
TL;DR
This paper investigates how Hubbard interactions influence the electrical properties of graphene, identifying conditions under which it exhibits absolute negative conductivity depending on external fields.
Contribution
It provides a novel analysis of the current-voltage and Ampere-Gauss characteristics of graphene considering Hubbard interactions and external fields.
Findings
Regions of absolute negative conductivity identified
Dependence of conductivity on external field frequency and magnetic field
Insights into electronic behavior of graphene with interactions
Abstract
The analysis of Current-voltage characteristic and Ampere-Gauss characteristic for graphene with Hubbard interaction was carried out depending on frequency of external variable field and magnetic field. The regions of the absolute negative conductivity were found.
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Taxonomy
TopicsGraphene research and applications · Carbon Nanotubes in Composites · Thermal properties of materials