2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/83879We propose an experiment using a three-gate quantum Hall device to probe the dependence of the integral quantum Hall effect (IQHE) on the shape of the lateral confining potential in edge regions. This shape can, in a certain configuration determine whether or not the IQHE occurs.HTML with 7 figures and equationsGeneral Physicstext