Realization of dual,tunable, ordinary- and quantized-Hall resistances in doubly connected GaAs/AlGaAs heterostructures |
| |
Authors: | R. G. Mani K. von Klitzing |
| |
Affiliation: | 1. Max Planck Institut für Festk?rperforschung, Heisenbergstrasse 1, D-70569, Stuttgart, Germany
|
| |
Abstract: | An experimental configuration based on gated, double boundary GaAs/AlGaAs devices provides the first demonstration of dual distinct, tunable Hall resistances in the same sample over the weak- and strongmagnetic field limits, including the simultaneous observability of dual quantized Hall effects of dissimilar filling factors. These experiments suggest that the ordinary Hall resistance examined in experiment is essentially a topological resistance determined by connectivity, which need not reflect all “local” values of the off-diagonal resistivity, θ M ρ xy . |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|