Elastic and piezoelectric properties of BaTiO3 at room temperature
作者： A. Khalal , D. Khatib , B. Jannot
DOI: 10.1016/S0921-4526(99)00202-1
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摘要: Abstract We have calculated the phonon dispersion curves of barium titanate (BaTiO 3 ) at room temperature. A lattice dynamical formalism using shell model is used. This microscopic includes short-range interactions axially symmetric type and long-range Coulomb taking into account electronic polarizability constituent ions. Zone center a few phonons in first Brillouin zone are used for fitting. The values relevant parameters critically analyzed. calculation elastic piezoelectric properties presented compared with available experimental data.
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