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- Title
Peculiarities of Vacuum Resonant Tunneling at One- and Two-Well Barrier Potentials.
- Authors
Davidovich, M. V.
- Abstract
Peculiarities of 1D vacuum tunneling and calculation of the tunnel current in barrier quantum structures with one and two wells are considered. The structures are formed by several electrodes (cathode, anode, and two grids). The multiple imaging method is used for plotting the potential profiles. The equations for eigenlevels and metastable levels of the structure with an arbitrary potential profile are derived. For complete resonant tunneling, metastable levels must fall into the electron kinetic energy distribution region at the cathode, which is observed in one-well structures zero anode voltage or for a low anode voltage as compared to the grid voltage. An appreciable voltage at the anode leads to an asymmetric structure and to an incomplete resonant tunneling. In this case, the two-well structure with a double grid makes it possible to obtain complete resonant tunneling for some energies and to increase the tunnel current by orders of magnitude.
- Subjects
RESONANT tunneling; ELECTRON kinetic energy
- Publication
Technical Physics, 2022, Vol 67, Issue 5, p361
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S1063784222060019