In order to measure this effect's namesake coefficient for a roughly two-dimensional sample of arbitrary shape, the Van der Pauw method is particularly useful.
The Laughlin wavefunction was constructed as an ansatz to explain a certain variety of this effect, and the idea of composite fermions was developed to explain that same variety (*). In order to measure this effect's namesake coefficient for a roughly two-dimensional sample of arbitrary shape, the Van der Pauw method is particularly useful. An analogue of this effect that utilizes a disc-shaped sample instead of a rectangular one is known as the Corbino effect. Its quantum version was discovered by Klaus von Klitzing in 1980. For ten points, identify this electromagnetic effect whereby a magnetic field perpendicular to an electric current creates a voltage difference across two sides of a sample.
The Laughlin wavefunction was constructed as an ansatz to explain a certain variety of this effect, and the idea of composite fermions was developed to explain that same variety (*).
{Hall} Effect (accept “{Quantum Hall}” or “{Fractional Quantum Hall}” before (*))