(3 Domain and Domain Wall 500 -o-MLF4 -o-MLF8 -△-MLF16 a-a domain boundanes 400 000000000000208 200nm 300 200 300 200 -100 0 100 200 300 Electric field (kV/cm) Dielectric Constant 40 nm 2023/6/28 142023/6/28 14 Domain and Domain Wall Dielectric Constant