フェルミエネルギー
Fig 1 shows the Fermi energy "E"F located in between two Landau levels. Electrons become mobile as their energy levels cross the Fermi energy "E"F. With the Fermi energy "EF" in between two Landau levels, scattering of electrons will occur only at the edges of a sample where the levels are bent. The corresponding electron states are commonly referred to as edge channels.