Ballistic composite fermions in semiconductor nanostructures
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
53
Journal Issue
15
Pages
9602-9605
Date Issued
1996
Author(s)
Abstract
We report the results of two fundamental transport measurements at a Landau level filling factor ν of 1/2. The well-known ballistic electron transport phenomena of quenching of the Hall effect in a mesoscopic cross-junction and negative magnetoresistance of a constriction are observed close to B=0 and ν=1/2. The experimental results demonstrate semiclassical charge transport by composite fermions, which consist of electrons bound to an even number of flux quanta. © 1996 The American Physical Society.
Type
journal article