A Bayesian approach to modeling diffraction profiles and application to ferroelectric materials

Thanakorn Iamsasri, Jonathon Guerrier, Giovanni Esteves, Chris M. Fancher, Alyson G. Wilson, Ralph C. Smith, Elizabeth A. Paisley, Raegan Johnson-Wilke, Jon F. Ihlefeld, Nazanin Bassiri-Gharb, Jacob L. Jones

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A new statistical approach for modeling diffraction profiles is introduced, using Bayesian inference and a Markov chain Monte Carlo (MCMC) algorithm. This method is demonstrated by modeling the degenerate reflections during application of an electric field to two different ferroelectric materials: thin-film lead zirconate titanate (PZT) of composition PbZr0.3Ti0.7O3 and a bulk commercial PZT polycrystalline ferroelectric. The new method offers a unique uncertainty quantification of the model parameters that can be readily propagated into new calculated parameters.

Original languageEnglish
Pages (from-to)211-220
Number of pages10
JournalJournal of Applied Crystallography
Volume50
Issue number1
DOIs
StatePublished - Feb 1 2017
Externally publishedYes

Keywords

  • Bayesian inference
  • domain switching fraction
  • ferroelectric materials
  • modeling diffraction profiles

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