Left: eigenfunctions corresponding to the largest growth rates for the modes n = 1 (black line), n = 2 (blue line), n = 16 (green line), and n = 128 (red line), normalized to unity, as a function of height for the perpendicular magnetic field configuration. Right: Log–log plot of half width at half maximum, Δ, of the eigenfunctions as a function of the mode number n for the range 1 ≤ n ≤ 50 for different configurations of the magnetic field: perpendicular (orange), sheared with shear length equal to: L₀ (red), L₀/2 (violet), L₀/3 (cyan), L₀/4 (lime), L₀/5 (blue). The slopes of the curves calculated from a linear fit for the modes 10 ≤ n ≤ 50 and the uncertainties of the fit are indicated in the legend.