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

• Vilgelmina Stepkova Jiri Hlinka Institute of Physics, The Czech Academy of Sciences, 182 21 Prague, Czech Republic 10.3762/bjnano.9.220 Abstract The phase-field simulations of ferroelectric Bloch domain walls in BaTiO3–SrTiO3 crystalline superlattices performed in this study suggest that a

• 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

• needed to drive BaTiO3 into the rhombohedral ferroelectric phase). Phase-field simulations for pure BaTiO3 single crystal and for the BaTiO3–SrTiO3 crystalline superlattice at stress-free mechanical conditions were performed using the phase-field simulation code ferrodo [8]. The approximate profile of