Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2007-07-20
Nature Physics 4, 210-212 (2008)
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
Anderson has recently proposed a theory of the strange metal state above Tc in the high Tc superconductors. [arXiv:cond-mat/0512471] It is based on the idea that the unusual transport properties and spectral functions are caused by the strong Mott- Hubbard interactions and can be computed by using the formal apparatus of Gutzwiller projection. In ref. 1 Anderson computed only the tunneling spectrum and the power-law exponent of the infrared conductivity. He had calculated the energy distribution curves (EDCs) in angle resolved photoemission spectroscopy (ARPES) but was discouraged when these differed radically from the best ARPES measurements available at the time, and did not include them. In this letter we compare the spectral functions computed within this model to the novel laser-ARPES data of the Dessau group.These are found to capture the shape of the experimental EDCs with unprecedented accuracy and in principle have only one free parameter.
Anderson Philip W.
Casey Philip A.
Dessau Daniel S.
Koralek Jake D.
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