Quantized charge pumping through a quantum dot by surface acoustic waves

Details Quantized charge pumping through a quantum dot by surface acoustic waves Quantized charge pumping through a quantum dot by surface acoustic waves

2003-12-11

arxiv.org/abs/cond-mat/0312304v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages

Scientific paper

10.1063/1.1757016

We present a realization of quantized charge pumping. A lateral quantum dot is defined by metallic split gates in a GaAs/AlGaAs heterostructure. A surface acoustic wave whose wavelength is twice the dot length is used to pump single electrons through the dot at a frequency f=3GHz. The pumped current shows a regular pattern of quantization at values I=nef over a range of gate voltage and wave amplitude settings. The observed values of n, the number of electrons transported per wave cycle, are determined by the number of electronic states in the quantum dot brought into resonance with the fermi level of the electron reservoirs during the pumping cycle.

Affiliated with

Also associated with

No associations

Rating

Quantized charge pumping through a quantum dot by surface acoustic waves 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 Quantized charge pumping through a quantum dot by surface acoustic waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantized charge pumping through a quantum dot by surface acoustic waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-726156