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Article
The Prediction of Lattice Constants in Orthorhombic Perovskites
Journal of Alloys and Compounds (2009)
  • Rick Ubic, Boise State University
  • Ganesanpotti Subodh
Abstract

The correlation between ionic radii and the lattice constants of orthorhombic perovskites is examined and new empirical formulae for the relationship are derived. As for cubic/pseudocubic perovskites, the lattice constants are largely a function of A–X and B–X bond lengths rather than ionic charge. The average absolute relative error in the predicted a, b, and c lattice constants so derived is expected to be about 0.616%, 1.089%, and 0.714%, respectively; therefore, these formulae are in better agreement with experimental data than those derived by earlier researchers.

Keywords
  • Ceramics,
  • Ferroelectrics,
  • Crystal structure
Publication Date
November 20, 2009
Citation Information
Rick Ubic and Ganesanpotti Subodh. "The Prediction of Lattice Constants in Orthorhombic Perovskites" Journal of Alloys and Compounds Vol. 488 Iss. 1 (2009)
Available at: http://works.bepress.com/rick_ubic/1/