Abstract
It is interesting to consider some of the reasons why there is comparatively little discussion these days about new superconductors. First, superconductivity is a cooperative phenomenon for whose transition temperatures no quantitative answers exist. Cooperative phenomena, as you may know, are phenomena that occur only if there is a large number of individuals participating. Such phenomena are not confined to physics; they are a major occurrence in nature. Superconductivity is a cooperative phenomenon of electrical conductivity, but as long as one tries to explain superconductivity as some kind of pathological electrical conductivity, there is not much hope of predicting new superconducting materials or temperatures. Electrical conductivity is not dependent upon a cooperative phenomenon; it is abundant everywhere. Every metal has electrical conductivity, and even every insulator has some electrical conductivity. Yet superconductivity occurs only under certain conditions involving not only the conduction electrons but mostly the valence electrons.
Research at La Jolla sponsored by the U.S. Air Force Office of Scientific Research, Office of Aerospace Research, USAFOSR Grant No. AF-AFOSR-631–67.
The text is a transcription of the talk given at the 1967 Cryogenic Engineering Conference. My thanks go to H, Hunter Hill and N, J. McLaughlin for their help in editing and presenting it in written form.
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© 1995 Springer Science+Business Media New York
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Matthias, B.T. (1995). The Empirical Approach to Superconductivity. In: Timmerhaus, K.D. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 13. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0516-4_1
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DOI: https://doi.org/10.1007/978-1-4757-0516-4_1
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