Related Experiment Video
Updated: Aug 23, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Near-perfect correlation of the resistance components of mesoscopic samples at the quantum Hall regime
1Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot 76100, Israel.
Abstract:
We study the four-terminal resistance fluctuations of mesoscopic samples near the transition between the nu=2 and the nu=1 quantum Hall states. We observe near-perfect correlations between the fluctuations of the longitudinal and Hall components of the resistance. These correlated fluctuations appear in a magnetic-field range for which the two-terminal resistance of the samples is quantized. We discuss these findings in light of edge-state transport models of the quantum Hall effect. We also show that our results lead to an ambiguity in the determination of the width of quantum Hall transitions.
Related Concept Videos
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)
NMR Spectrometers: Resolution and Error Correction
Resistivity
The Hall Effect
Equivalent Resistance
Debye–Huckel–Onsager Conductance Equation

