Phenomenological theory of a scalar electronic order: Application to skutterudite PrFe4P12

Annamária Kiss, Yoshio Kuramoto

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

By phenomenological Landau analysis, it is shown that a scalar order parameter with the point-group symmetry Γ1g explains most properties associated with the phase transition in PrFe4P 12 at 6.5 K. The scalar-order model reproduces magnetic and elastic properties in PrFe4P12 consistently such as (i) the anomaly of the magnetic susceptibility and elastic constant at the transition temperature, (ii) anisotropy of the magnetic susceptibility in the presence of uniaxial pressure, and (iii) the anomaly in the elastic constant in magnetic field. An Ehrenfest relation is derived which relates the anomaly of the magnetic susceptibility to that of the elastic constant at the transition.

Original languageEnglish
Article number034602
Journaljournal of the physical society of japan
Volume77
Issue number3
DOIs
Publication statusPublished - 2008 Mar 1

Keywords

  • Elastic constant
  • Magnetic susceptibility
  • PrFeP
  • Scalar order
  • Skutterudite
  • Uniaxial pressure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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