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.
- Received 9 November 1995
DOI:https://doi.org/10.1103/PhysRevB.53.9602
©1996 American Physical Society