Microscopic Tunneling Spectroscopy on High-Temperature Superconductors

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Science  19 Jan 1996:
Vol. 271, Issue 5247, pp. 313-314
DOI: 10.1126/science.271.5247.313


The rate at which electrons quantum mechanically tunnel from a metal probe tip into the surface of a superconductor reveals crucial information about fundamental mechanism of superconductivity. High transition temperature superconductors have been difficult to study with this technique, but as Kitazawa discusses in his Perspective, recent improvements in tunneling microscopy are overcoming the obstacles.