Comparison of the hole concentration determined by transport measurement for the hole-doped cuprate superconductors

We have compared the hole concentration (P-pl) determined by hole-scale based on the thermoelectric power at RT (S-290) to the hole concentrations (P) determined by two popular hole-scales based on the superconducting critical temperature (T-c) and Hall coefficient (R-H). While the hole concentrations based on different hole-scales are different, we show that when the P-pl is divided by either the effective unit cell volume (V-euc) which is the unit cell volume per one CuO2 plane or the optimal hole concentration (P-pl(opt)) we can find some correlation between P-pl and P. That is, the normalized T-c(T-c/T-c(P-pl(opt))) and the Hall number (1/eR(H)) are well scaled with P-pl/P-pl(opt) and P-pl/V-euc, respectively. We find that the P-pl-scale can map to and reproduce the other two hole-scales if proper dimensionality and normalization are taken into account but not vice versa. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.