Pinning of a ferroelectric Bloch wall at a paraelectric layer

• Vilgelmina Stepkova and
• Jiří Hlinka

Beilstein J. Nanotechnol. 2018, 9, 2356–2360, doi:10.3762/bjnano.9.220

• superlattices; ferroelectric domain walls; Ginzburg–Landau–Devonshire model; phase-field simulations; Introduction Nanometer-scale mixtures of paraelectric and ferroelectric materials in disordered solid solutions or in very fine artificial crystalline superlattices often show qualitatively similar domain

• its the edges along the principal pseudocubic crystallograpic axes (see Figure 8). The BaTiO3 and SrTiO3 Ginzburg–Landau–Devonshire model potential parameters used in the present calculations are those of [12], except for the temperature parameter, which was set to 118 K here (low temperature is