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Method for analyzing second-order phase transitions: application to the ferromagnetic transition of a polaronic system.

Authors
  • Souza, J A
  • Yu, Yi-Kuo
  • Neumeier, J J
  • Terashita, H
  • Jardim, R F
Type
Published Article
Journal
Physical review letters
Publication Date
May 27, 2005
Volume
94
Issue
20
Pages
207209–207209
Identifiers
PMID: 16090285
Source
Medline
License
Unknown

Abstract

A new method for analyzing second-order phase transitions is presented and applied to the polaronic system La(0.7)Ca(0.3)MnO3. 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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