Self-aligned charge read-out for InAs nanowire quantum dots

Details Self-aligned charge read-out for InAs nanowire quantum dots Self-aligned charge read-out for InAs nanowire quantum dots

2007-12-11

arxiv.org/abs/0712.1705v2

Nanoletters 8, 382 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 3 figures

Scientific paper

A highly sensitive charge detector is realized for a quantum dot in an InAs nanowire. We have developed a self-aligned etching process to fabricate in a single step a quantum point contact in a two-dimensional electron gas and a quantum dot in an InAs nanowire. The quantum dot is strongly coupled to the underlying point contact which is used as a charge detector. The addition of one electron to the quantum dot leads to a change of the conductance of the charge detector by typically 20%. The charge sensitivity of the detector is used to measure Coulomb diamonds as well as charging events outside the dot. Charge stability diagrams measured by transport through the quantum dot and charge detection merge perfectly.

Affiliated with

Also associated with

No associations

Rating

Self-aligned charge read-out for InAs nanowire quantum dots 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 Self-aligned charge read-out for InAs nanowire quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-aligned charge read-out for InAs nanowire quantum dots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-474348