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Top (left) and side (right) views of the bilayer system with impressed kink potential .
Dispersion relations for (a) , (b) , and (c) . For (b) and (c) the brown points correspond to overbarrier scattering states. Zero modes occur at , for both (b) and (c). Note also similarities between (b) and (c). The solution has .
(a) Imaginary part of the intragap wave function (unnormalized) for : thick (, , i.e., the zero mode); dashed ; thin . Real parts are less than a tenth of the imaginary parts. (b) Unnormalized wave functions for the , , bound case: dashed ; thin ; thick . Wave functions are real. (c) Over-barrier wave functions (unnormalized): thin , dashed . Imaginary parts are very small.
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