Progress in the understanding of the normal state of the cuprates |
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Authors: | C Janowitz R Müller L Dudy R-St Unger A Krapf R Manzke C Ast H Höchst |
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Institution: | 1.Humboldt-Universit?t Berlin, Institut für Physik, Invalidenstr. 110, 10115 Berlin, Germany,DE;2.Synchrotron Radiation Center, 3731 Schneider Dr., Stoughton, WI 53589, USA,US |
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Abstract: | Over the last years there has been increasing evidence that the normal state of the cuprates can not be described adequately
with individual quasiparticles within Fermi-liquid theory. While the low-lying excitations in the superconducting state are
nevertheless possibly of quasiparticle character, this character vanishes with the loss of superconducting phase coherence
when going to the normal conducting state. Generally, this normal state is characterized by strong heterogeneity. In real
space this manifests in charge and spin ordering, either static or dynamical, the so-called ‘stripes’. The spectral signatures
of various models describing this unusual metallic normal state together with less exotic non-Fermi-liquid models, like the
marginal Fermi liquid, will be compared to photoemission spectra with high angular and energy resolution and to results obtained
by other methods.
Received: 19 March 2002 / Accepted: 2 October 2002 / Published online: 5 February 2003
RID="*"
ID="*"Corresponding author. Fax: +49-30/2093-7729, E-mail: christoph.janowitz@physik.hu-berlin.de |
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Keywords: | PACS: 79 60 -i 74 25 Jb 71 10 Hf |
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