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arXiv · 2108.02108

The pseudogap in hole-doped cuprates: possible insights from the Kondo effect

J. R. Cooper
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Abstract

The "states-non-conserving" fermion density of states (DOS), deduced from the specific heat of hole-doped cuprates, could arise from a Kondo or heavy fermion-like DOS being suppressed by anti-ferromagnetic spin fluctuations. The large Fermi surface predicted by band theory and observed experimentally, is still expected for zero pseudogap, but with an effective mass corresponding to a Kondo temperature ~ 800 K. A finite pseudogap could divide it into Fermi arcs. Theoretical results for the asymmetric Anderson model can account for the experimental Wilson ratio.

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J. R. Cooper. 2021-08-04. The pseudogap in hole-doped cuprates: possible insights from the Kondo effect. https://doi.org/10.1103/physrevb.105.l041102

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