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Proceedings Paper

Photoemission, low-dimensionality, and high-temperature superconductivity
Author(s): Giorgio Margaritondo
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Paper Abstract

Several experiments by different authors have established the existence of an 'anomalous' photoemission effect in one-dimensional systems, including one-dimensional metallic crystals and other examples of one-dimensional metals. The effect consists of the suppression of the photoemission signal at energies close to the Fermi level -- whereas for metals one would expect to see a Fermi edge. Increasing evidence exists, in our opinion, that this phenomenon is due to the decoupling of charge and spin coordinates and to a departure from the Fermi-liquid framework. If confirmed, this conclusion would be extremely relevant to high-temperature superconductivity, since it would pave the way to the use of a similar concept for non-Fermi- liquid theories of high-temperature superconductors.

Paper Details

Date Published: 10 June 1996
PDF: 8 pages
Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); doi: 10.1117/12.241765
Show Author Affiliations
Giorgio Margaritondo, Ecole Polytechnique Federale de Lausanne and Sincrotrone Trieste SCpA (Switzerland)


Published in SPIE Proceedings Vol. 2696:
Spectroscopic Studies of Superconductors
Ivan Bozovic; Dirk van der Marel, Editor(s)

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