Properties of strontium titanate in the SrTiO3/CeO2/Al2O3 multilayered structure

Capacitor structures based on strontium titanate films

“…2. The ratio between the channeled and random spectra of the light ions back scattered from the strontium titanate single crystal (perfect crystal) is equal to 0.3 [12]. An increase in the deposition temperature above 800°C is not expedient, because it will give rise to compressive stresses of the STO lattice (see Fig.…”

Investigation of ferroelectric multilayer structures with properties of multiferroics based on barium-strontium titanate films

“…Taking into account the form factor, the experimentally observed dependences C(T) are similar to the dependences ε(T). In the expansion of the free energy in powers of the polarization and mechanical stresses within the framework of the Gin zburg-Devonshire theory [6] at small electric field strengths, we restrict ourselves to the first two terms and, by differentiating the expansion of the free energy with respect to the polarization, obtain the depen dence of the reciprocal of the permittivity on the tem perature and mechanical stress [14]: (1) where C k is the Curie-Weiss constant, G is the elec trostriction tensor component, and U is the stress ten sor component. The last two terms in this expression can be taken as an effective value of the Curie temper ature T* = T c -ε 0 C k GU.…”