This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sketch energy edge channels.svg en Sketch of the energy levels inside and at the edge of two dimensional electron gas Landau levels with edge channels de Schematisierte Energielevels im Innern und am Rand eines zweidimensionalen Elektronengases im Magnetfeld Landaulevel mit Randkanlen own Mlohr Quantum Hall effect