Related Experiment Video
Updated: Aug 23, 2026

Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons
Published on: July 14, 2021
Magnetic-field dependence of the anomalous noise behavior in a two-dimensional electron system in silicon
J Jaroszyński1, Dragana Popović, T M Klapwijk
1National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA. jaroszy@magnet.fsu.edu
Abstract:
Studies of low-frequency resistance noise show that the dramatic change in the dynamics of the two-dimensional electron system (2DES) in Si that occurs near the metal-insulator transition (MIT) persists in high parallel magnetic fields B such that the 2DES is fully spin polarized. This strongly suggests that charge, as opposed to spin, degrees of freedom are responsible for this effect. In the metallic phase, however, noise is suppressed by a parallel B, pointing to the role of spins. At low B, the temperature dependence of conductivity in the metallic phase provides evidence for a MIT.
Related Concept Videos
π Electron Effects on Chemical Shift: Overview
Diamagnetism
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.
Magnetic Field Due To A Thin Straight Wire
Magnetic Field due to Moving Charges
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
Magnetic Moment of an Electron
Atomic Nuclei: Nuclear Relaxation Processes
