A new method for analyzing second-order phase transitions applied to the ferromagnetic transition of a polaronic system

Details A new method for analyzing second-order phase transitions applied to the ferromagnetic transition of a polaronic system A new method for analyzing second-order phase transitions applied to the ferromagnetic transition of a polaronic system

2005-04-21

arxiv.org/abs/cond-mat/0504572v1

Physics

Condensed Matter

Strongly Correlated Electrons

Accepted for publication in Physical Review Letters

Scientific paper

A 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.

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