Electric-field distribution in a quantum superlattice with an injecting contact: Exact solution


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Resumo

A very simple model describing steady-state electron transport along a quantum superlattice of a finite length taking into account an arbitrary electrical characteristic of the injecting contact is considered. In the singleminiband approximation, exact formulas for the spatial distribution of the electric field in the superlattice are derived for different types of contact. Conditions under which the field is uniform are identified. Analytical expressions for the current–voltage characteristics are obtained. In the context of the developed theory, the possibility of attaining uniform-field conditions in a diode structure with a natural silicon-carbide superlattice is discussed.

Sobre autores

V. Maksimenko

Yuri Gagarin State Technical University of Saratov; National Research Saratov State University

Email: K.Alekseev2@lboro.ac.uk
Rússia, ul. Politekhnicheskaya 77, Saratov, 410054; ul. Astrakhanskaya 83, Saratov, 410012

V. Makarov

Yuri Gagarin State Technical University of Saratov

Email: K.Alekseev2@lboro.ac.uk
Rússia, ul. Politekhnicheskaya 77, Saratov, 410054

A. Koronovskii

National Research Saratov State University

Email: K.Alekseev2@lboro.ac.uk
Rússia, ul. Astrakhanskaya 83, Saratov, 410012

A. Hramov

Yuri Gagarin State Technical University of Saratov; National Research Saratov State University

Email: K.Alekseev2@lboro.ac.uk
Rússia, ul. Politekhnicheskaya 77, Saratov, 410054; ul. Astrakhanskaya 83, Saratov, 410012

R. Venckevičius

Terahertz Photonics Laboratory

Email: K.Alekseev2@lboro.ac.uk
Lituânia, Vilnius, LT-01108

G. Valušis

Terahertz Photonics Laboratory

Email: K.Alekseev2@lboro.ac.uk
Lituânia, Vilnius, LT-01108

A. Balanov

Yuri Gagarin State Technical University of Saratov; Department of Physics

Email: K.Alekseev2@lboro.ac.uk
Rússia, ul. Politekhnicheskaya 77, Saratov, 410054; Loughborough, LE11 3TU

F. Kusmartsev

Department of Physics

Email: K.Alekseev2@lboro.ac.uk
Reino Unido da Grã-Bretanha e Irlanda do Norte, Loughborough, LE11 3TU

K. Alekseev

Department of Physics

Autor responsável pela correspondência
Email: K.Alekseev2@lboro.ac.uk
Reino Unido da Grã-Bretanha e Irlanda do Norte, Loughborough, LE11 3TU

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