Extended least-squares analysis of heat capacities incorporating the effect of phase transitions and its application to the deuteration-induced phase transition in Rb3D(SO4)2
a Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama-Cho 1-1, Toyonaka 560-0043, Japan b Division of Physics, Graduate School of Science, Hokkaodo University, Sapporo 060-0810, Japan