Consequences of charge imbalance in superconductors within the theory of hole superconductivity

cond-mat/0012517 (Los Alamos) , Phys.Lett.A 281, 44 (2001).

The theory of hole superconductivity proposes that the fundamental asymmetry between electrons and holes in solids is responsible for superconductivity. Here we point out a remarkable consequence of this theory: a tendency for negative charge to be expelled from the bulk of the superconductor towards the surface. Experimentally observable consequences of this physics are discussed.
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