Bond-Valence Model of Ferroelectric PbTiO₃
Bond-Valence Model of Ferroelectric PbTiO₃
- 한국물리학회
- Journal of the Korean Physical Society
- 52(4)
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2008.041206 - 1210 (5 pages)
- 0
A classical potential parameterized for the reproduction of density functional calculations is used to describe the behavior of complex ferroelectric PbTiO₃. A scoring function is defined in terms of the energy differences and the forces of the reference structures that are generated from \emph{ab-initio} molecular dynamics simulations with various strained lattice vectors. The elastic properties of ferroelectric PbTiO₃, as well as the phase transition temperature, have been improved by the addition of the strained reference structures.
A classical potential parameterized for the reproduction of density functional calculations is used to describe the behavior of complex ferroelectric PbTiO₃. A scoring function is defined in terms of the energy differences and the forces of the reference structures that are generated from \emph{ab-initio} molecular dynamics simulations with various strained lattice vectors. The elastic properties of ferroelectric PbTiO₃, as well as the phase transition temperature, have been improved by the addition of the strained reference structures.
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