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Comparison of resonant tunneling in a double-quantum-well three-barrier system and a single-quantum-well double-barrier system
- Source :
- Physical Review B. 47:7253-7259
- Publication Year :
- 1993
- Publisher :
- American Physical Society (APS), 1993.
-
Abstract
- A theoretical analysis has been carried out to compare the tunneling processes in a double-quantum-well three-barrier (DQW-TB) system and a single-quantum-well double-barrier (SQW-DB) system. Based on a general WKB formula, it is shown that a symmetric DQW-TB system with transparencymatched barriers is far superior to the SQW-DB system in a number of aspects, including the peak current, the peak-to-valley ratio, and the speed limit
Details
- ISSN :
- 10953795 and 01631829
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....653d39fc464a8449bd4f99160d5ef851