Origin of the current oscillations in GaAs-AlGaAs tunnel junctions
- 15 March 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 31 (6), 4080-4082
- https://doi.org/10.1103/physrevb.31.4080
Abstract
This Rapid Communication reviews different interpretations provided to understand the current oscillations observed in reverse-bias GaAs-AlGaAs tunnel junctions. It is seen that the ballistic picture is contradicted by the experimental conditions. Another interpretation based on phonon-assisted tunneling appears unsatisfactory with regard to several experimental observations. An explanation based on a space-charge effect induced by phonon generation is proposed. This theoretical interpretation is in good agreement with the experiment and provides a general basis for the understanding of similar effects encountered previously in analog structures.Keywords
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