Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2008-09-16
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
10.1007/s10909-008-9839-x
We describe here the realization of a single electron source similar to single photon sources in optics. On-demand single electron injection is obtained using a quantum dot connected to the conductor via a tunnel barrier of variable transmission (quantum point contact). Electron emission is triggered by a sudden change of the dot potential which brings a single energy level above the Fermi energy in the conductor. A single charge is emitted on an average time ranging from 100 ps to 10 ns ultimately determined by the barrier transparency and the dot charging energy. The average single electron emission process is recorded with a 0.5 ns time resolution using a real-time fast acquisition card. Single electron signals are compared tosimulation based on scattering theory approach adapted for finite excitation energies.
Berroir Jean-Marc
Cavanna Andrea
Etienne Bernard
Fève Gwendal
Glattli Christian
No associations
LandOfFree
Subnanosecond single electron source in the time-domain does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Subnanosecond single electron source in the time-domain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subnanosecond single electron source in the time-domain will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-570933