fig5

Figure 5. (A) Schematic of the screen surrounding the pump laser spot with the top of the crystal (gold color) and a sketch of the charge distribution (the free charge is enclosed within the circle)^[111]. (B) The out-of-plane polarization (P₃) of BTO (001) films is a reflection of the in-plane (H₁) and out-of-plane (H₃) magnetic field strength for different biaxially isotropic in-plane residual strains ε₀ (= ε₁₁ = ε₂₂)^[115]. BTO: BaTiO₃.