Freezing temperature in disordered ferroelectrics

B. E. Vugmeister, H. Rabitz

Research output: Contribution to journalArticle

Abstract

At low temperatures disordered ferroelectrics condense in mesoscopic structures, intermediate between dipole glass and regular ferroelectrics. We propose an approach for the evaluation of the freezing temperature of such mesoscopic structures based on the random local field theory (which partially takes into account the correlation effects) and the computer simulations. The problem reduces to the diagonalization of random matrix whose elements depends on the interaction and temperature. We identify the onset of freezing with the temperature at which the maximum eigenvalue of the matrix is equal to one. The corresponding eigenvector reproduces the low temperature structure.

Original languageEnglish (US)
Pages (from-to)137-142
Number of pages6
JournalFerroelectrics
Volume222
Issue number1-4
DOIs
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Keywords

  • Dipole glasses
  • Freezing temperature
  • Mesoscopic structures

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