File talk:QuantumHallEffectExplanationWithLandauLevels.ogv

There are a few erroneous / unrealistic aspects to this animation, as it is now:


 * It shows the DOS peaks do not change in amplitude as field is increased. In reality, the overall average DOS is kept conserved, and so the peaks have to get larger as they get further apart (the peaks shouldn't get wider, only higher).
 * It shows the Fermi energy as constant. In almost all realistic experiments, the electron density is instead fixed to a certain value (either due to doping, long-distance electrostatic gating, or some other kind of charge-donating effect). The Fermi energy should then float around to wherever it needs to be to keep that density; it should spend most of the time sitting inside of a peak and only very rarely sit inbetween peaks.
 * It shows the plateaus as corresponding to Fermi energy being in a gap. Once the previous point is fixed, this would no longer occur. But then the viewers might get confused as to why plateaus occur, and it may be important to mark the parts of DoS that are only bound states and those that contain edge-to-edge percolating channels.

--Nanite (talk) 17:06, 24 October 2021 (UTC)