title: Piezoelectric and flexoelectric effects in ferroelectric liquid crystals.
abstract: Flexoelectric and piezoelectric effects in ferroelectric liquid crystals (FLCs) have been studied. It is shown that nonlinear electromechanical coupling is determined by a local flexoelectric effect. Dependence of the parameters of nonlinearity of the flexoelectric effect on the parameter of phase transition from a paraelectric phase to a polar phase has been studied. Dependencies of flexoelectric and piezoelectric coefficients on the frequency of the mechanical vibrations have been studied.
authors.affiliation: State Scientific Institution Institute for Single Crystals of National Academy of Sciences of Ukraine, 60 Lenin Avenue, Kharkov 61001, Ukraine. popova@isc.kharkov.com
authors.forename: E V
authors.initials: EV
authors.lastname: Popova
authors.forename: E I
authors.initials: EI
authors.lastname: Kopeychenko
authors.forename: A I
authors.initials: AI
authors.lastname: Krivoshey
authors.forename: V V
authors.initials: VV
authors.lastname: Vashchenko
authors.forename: A P
authors.initials: AP
authors.lastname: Fedoryako