Figure 2

Switching currents of the BaZrO₃/BaTiO₃ superlattice for different values of the switching fields: 1, 2, 3, 4, 5, 6 and 7 correspond to 22 kV cm⁻¹, 28 kV cm⁻¹, 117 kV cm⁻¹, 164 kV cm⁻¹, 187 kV cm⁻¹, 210 kV cm⁻¹, and 235 kV cm⁻¹, respectively.