Flexoelectric effects in ferroelectric liquid crystals ?

Ph. Martinot-Lagarde , Geoffroy Durand

We show that the flexoelectric part of the spontaneous polarization in chiral smectic C* liquid crystal does not contribute at all to the static dielectric constant in the ferroelectric phase. Recent experimental data which concluded to a large flexoelectric contribution from dielectric constant analysis must be reinterpreted.

Mots clés: dielectric polarisation; ferroelectric materials; flexoelectricity; permittivity; smectic liquid crystals; ferroelectric liquid crystals; chiral smectic; static dielectric constant; flexoelectric effects; spontaneous polarisation

Domaines: Articles anciens

Ph. Martinot-Lagarde, Geoffroy Durand. Flexoelectric effects in ferroelectric liquid crystals ?. Journal de Physique Lettres, 1980, 41 (2), pp.43-45. ⟨10.1051/jphyslet:0198000410204300⟩. ⟨jpa-00231717⟩