6533b82efe1ef96bd129316c

RESEARCH PRODUCT

Theory of birefringence and spontaneous polarization in the tetragonal phase of PbTiO3 due to lattice deformation caused by the change of temperature

Wataru KinaseB. JannotL. LifsalDriss Khatib

subject

Tetragonal crystal systemPolarization rotatorKerr effectBirefringenceMaterials scienceCondensed matter physicsPolarizabilityPhysics::OpticsIonic bondingCondensed Matter PhysicsPolarization (waves)Local fieldElectronic Optical and Magnetic Materials

description

The microscopic mechanism of birefringence in the tetragonal phase of PbTiO3 is discussed taking account of the dipole-dipole interaction (dipole-dipole effect) due to the ionic and electronic polarizations of the crystal and the spontaneous Kerr effect as a cause of the strong local field acting on the constituent ions, where the lattice deformation due to the change of temperature is also considered. For the spontaneous polarization we use only the first effect. It is found that the birefringence and the spontaneous polarization are in good agreement with the experimental data.

yearjournalcountryeditionlanguage
1995-06-01Ferroelectrics
https://doi.org/10.1080/00150199508007853