After correcting the Hall number for chain-plane resistivity anisotropy, the planar carrier density in overdoped YBCO rises gradually and only partially recovers the full Fermi volume at p*, disfavoring a pseudogap quantum critical point.
AboveT c,ρ a/ρb is strongly dependent on both temperature and the de- gree of oxygenation within the chains [25]
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Doping dependence of the low temperature planar carrier density in overdoped YBa$_2$Cu$_3$O$_{7-\delta}$
After correcting the Hall number for chain-plane resistivity anisotropy, the planar carrier density in overdoped YBCO rises gradually and only partially recovers the full Fermi volume at p*, disfavoring a pseudogap quantum critical point.