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Fig. 2


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The band-diagram (white line) and the local-DOS of electrons in (a) the bound-to-bound system and in (b) the bound-to-continuum system. In a corresponding bound-to-bound IBSC the reduction of voltage due to the presence of the IB should be 1–0.58 = 0.42 V against 1–0.54 = 0.46 V for the bound-to-continuum configuration.

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