%0 Journal Article %T Discontinuous change in smectic layer thickness in ferrielectric liquid crystals %+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN) %+ Laboratoire de Physique Théorique et Astroparticules (LPTA) %A Panov, V.P. %A Vij, J.K. %A Panarin, Yu.P. %A Blanc, Christophe %A Lorman, Vladimir %A Goodby, J.W. %Z 4 pp. %< avec comité de lecture %Z 06-121 %@ 1539-3755 %J Physical Review E : Statistical, Nonlinear, and Soft Matter Physics %I American Physical Society %V 75 %N 4 %P 042701 %8 2007-04-09 %D 2007 %R 10.1103/PhysRevE.75.042701 %K antiferroelectricity %K liquid films %K smectic liquid crystals %K liquid crystal phase transformations %K ferroelectric transitions %K ferroelectric thin films %Z PACS: 64.70.Md; 61.30.Cz; 61.30.Eb; 77.80.-e %Z Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biophysics %Z Physics [physics]/Condensed Matter [cond-mat] %Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles %X The temperature dependence of the thickness of thick free-standing films is studied using a high-resolution film thickness measurement technique. A small discontinuity in the temperature dependence of the smectic layer thickness at every phase transition between ferro-, ferri-, and antiferroelectric phases is observed. We show that the major contribution to it arises from a change in the smectic tilt angle. %G English %L hal-00378244 %U https://hal.science/hal-00378244 %~ IN2P3 %~ LPTA %~ CNRS %~ UNIV-MONTP2 %~ LCVN %~ UNIV-MONTPELLIER %~ UM1-UM2