Off-axis electron holography of manganite-based heterojunctions: Interface potential and charge distribution

Ling Zhi-Bin, Liu Gui-Ju, Yang Cheng-Peng, Liang Wen-Shuang, Wang Yi-Qian^‡

(a) Hologram taken from the interface region at 300 K. (b) Reconstructed phase image from hologram. (c) Phase profile showing the phase change across LCMO/STON interface. (d) Potential profile across heterojunction after subtracting MIP difference from the phase profile.