Question: Filling sub bands for electrons in a square GaAs wire of width 20 nm, find the linear electron density at which the n x ,

Filling sub bands for electrons in a square GaAs wire of width 20 nm, find the linear electron density at which the n_x, = 2, n_y, = 2 sub band is first populated in equilibrium at T = 0. Assume an infinite confining potential at the wire boundary.

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