Interface Dynamics for Cubic-Tetragonal Structural Transitions

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Abstract

Interface equations of motion for a single tetragonal nucleus growth and for twin formation under elastic fields in cubic-tetragonal structural transitions are derived. We give an expression to the elastic energy in the form of non-local, long-range interactions between nonconserved order parameters. We find that a single tetragonal nucleus grows anisotropically into oval or square and that twin structure is a stationary state in the coarsening process. These results are consistent with the numerical simulation.

Original languageEnglish
Pages (from-to)1587-1593
Number of pages7
JournalJournal of the Physical Society of Japan
Volume67
Issue number5
Publication statusPublished - 1998 May
Externally publishedYes

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Keywords

  • Cubic-tetragonal
  • Elastic effect
  • Interface dynamics
  • Morphology
  • Pattern formation
  • Phase transition
  • Symmetry breaking

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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