Flux period scaling in the Laughlin quasiparticle interferometer

Details Flux period scaling in the Laughlin quasiparticle interferometer Flux period scaling in the Laughlin quasiparticle interferometer

2005-12-15

arxiv.org/abs/cond-mat/0512329v3

Phys. Rev. B 73, 245322 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

published v3 replaces v2, that is a different paper

Scientific paper

10.1103/PhysRevB.73.245322

We report experiments on electron interferometer devices in the quantum Hall regime, where edge channels circle a 2D electron island. The main confinement is produced by etch trenches, into which front gate metal is deposited. We find a linear dependence of the Aharonov-Bohm period on gate voltage for electrons (integer filling f=1) and for Laughlin quasiparticles (fractional 2/5 embedded in 1/3). The capacitance of a large 2D electron island with respect to the front gates is approximately proportional to the island radius. Comparing the experimental data for the integer and the fractional fillings and for two samples, we find the magnetic field period and its slope scale with the radius of the Aharonov-Bohm orbit. Analysis of the directly measured integer and fractional slope data allows to determine the interferometer area in the fractional regime, and thus the Laughlin quasiparticle flux period of 5h/e, within the experimental accuracy.

Affiliated with

Also associated with

No associations

Rating

Flux period scaling in the Laughlin quasiparticle interferometer 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 Flux period scaling in the Laughlin quasiparticle interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flux period scaling in the Laughlin quasiparticle interferometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-167816