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Characteristic times for resonant tunneling through double barrier heterostructures

✍ Scribed by J.G. Muga; H. Cruz

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
554 KB
Volume
179
Category
Article
ISSN
0921-4526

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✦ Synopsis

Time dependent resonant tunneling of electron wave packets scattered through symmetric and asymmetric double barrier heterostructures under an external electric field is studied by systematically varying the barrier lengths. The different times involved, the charging time, the dwell time, the life time and passage time by transmission, are examined and grouped according to their qualitative behaviour against the barrier widths. It is found that the life time and dwell time are not always proportional.

πŸ“œ SIMILAR VOLUMES

Electron tunneling time through a hetero
Electron tunneling time through a heterostructure potential barrier
✍ Byoungho Lee πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 125 KB

The phase time of an electron tunneling through a heterostructure potential barrier is derived, including the position-dependent effective-mass effect. The usual phase time of the tunneling derived assuming a homogeneous effective mass deviates from this result by \(-15 \% \sim-28 \%\).