2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/26250A new method for analyzing second-order phase transitions is presented and applied to the polaronic system La$_{0.7}$Ca$_{0.3}$MnO$_{3}$. It utilizes heat capacity and thermal expansion data simultaneously to correctly predict the critical temperature's pressure dependence. Analysis of the critical phenomena reveals second-order behavior and an unusually large heat capacity exponent.Accepted for publication in Physical Review LettersStrongly Correlated Electronstext