Work

Valley Splitting of AlAs Two-Dimensional Electrons in a Perpendicular Magnetic Field

Year: 2002

Type: article

Abstract: By measuring the angles at which the Landau levels overlap in tilted magnetic fields (the coincidence method), we determine the splitting of the conduction-band valleys in high-mobility two-dimensional electrons confined to AlAs quantum wells. The data reveal that, while the valleys are nearly degenerate in the absence of magnetic field, they split as a function of perpendicular magnetic field. The splitting appears to depend primarily on the magnitude of the perpendicular component of the magnetic field, suggesting electron-electron interaction as its origin.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.89.226805

Authors: Y. P. Shkolnikov, E. P. De Poortere, E. Tutuc, M. Shayegan

Institution: Princeton University

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, National High Magnetic Field Laboratory

OpenAlex ID: W2054365229

FWCI: 1.676

Cites: 8

Cited by: 170

Related to: 10