Single-Particle Tunneling in Superconductors
Tunneling experiments reveal a good deal about the nature of the superconducting state. Here we consider only single-particle tunneling. In this case one can summarize the results in terms of an effective tunneling density of states N T (E) which is analogous to the conventional density of states is normal metals and which can be compared rather directly with experiment. In the case of multiparticle tunneling, more complicated effects occur (e.g., the Josephson effect) which are treated elsewhere in this volume.
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- An extensive list of references related to the above discussion is contained in J. R. Schrieffer, Theory of Superconductivity, W. A. Benjamin, Inc., New York, 1964, pp. 7887, 188–193. A more recent review of tunneling in superconductors is given by W. L. McMillan and J. M. Rowell in: Treatise on Superconductivity (R. D. Parks, ed.), Marcel Dekker, New York, 1968.Google Scholar