Extended Data Fig. 5: Domain writing of a 20-unit-cell-thick freestanding BFO film.
From: Freestanding crystalline oxide perovskites down to the monolayer limit
The initial state contains a single out-of-plane ___domain and multiple in-plane domains. The initial out-of-plane ___domain with polarization pointing downwards can be switched and this ___domain-writing process also affects the in-plane ___domain orientation owing to the trailing field effect. The voltage was applied at the tip during the ___domain reading and writing. Scale bar, 500 nm.
