Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations

P. Hong*, G. B. Olson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The interdomain boundary energy for purely elastic cubic to tetragonal transformations is calculated based on a Landau-Ginzburg approach. The strain-gradient coefficients are shown to be related to the curvatures of proper phonon dispersion curves. For the Fe70Pd30 alloy, a complete set of model parameters is derived from the available experimental data. Over the temperature range of the two-phase coexistence, the domain-boundary energy is found to vary from 0.11 mJ/m2 to 0.32 mJ/m2. The low domain-boundary energy meets the criterion proposed by Khachaturyan et at. for domain miniaturization to the "adaptive phase" limit.

Original languageEnglish (US)
Pages (from-to)681-683
Number of pages3
JournalSolid State Communications
Volume85
Issue number8
DOIs
StatePublished - Feb 1993

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Estimation of the domain-boundary energy by Landau-Ginzburg model for cubic to tetragonal transformations'. Together they form a unique fingerprint.

Cite this