Table 1 Hole concentrations (per f.u.) in chains and ladders.

The error bars correspond to the SD over all data sets analyzed and adjustment of the absolute energy positions of the O 2p hole band and the upper Hubbard band.

LaddersChains
[100]1.99 ± 0.284.01 ± 0.28
[001]1.92 ± 0.264.08 ± 0.26