The reflection as well as transmission of ballistic electrons at a potential barrier is studied as a function of the angle of incidence. The samples are based on high mobility two dimensional electron gases in \(\mathrm{AlGaAs} / \mathrm{GaAs}\)-heterostructures using split gate point contacts for c
✦ LIBER ✦
Resonant reflection, cooling, and quasitrapping of ballistic electrons by dynamic potential barriers
✍ Scribed by Tkachenko, O. A.; Tkachenko, V. A.; Baksheyev, D. G.
- Book ID
- 125455690
- Publisher
- The American Physical Society
- Year
- 1996
- Tongue
- English
- Weight
- 111 KB
- Volume
- 54
- Category
- Article
- ISSN
- 1098-0121
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Simulations of electrons tunneling in a barrier for which the height varies sinusoidally with time show resonances increasing the transmitted current. For square barriers, these resonances occur when electrons are promoted above the barrier by absorbing quanta from the barrier oscillations, and the