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 interface region at 300 K. (b) Reconstructed phase image from hologram. (c) Phase profile showing peak across the LMO bufferlayer. (d) Potential profile across heterojunction after subtracting MIP difference from phase profile.