Fig. 3
From: Mesopores induced zero thermal expansion in single-crystal ferroelectrics
High-resolution HAADF-STEM and EELS characterization of the microregion near a single mesopore. a High-resolution HAADF-STEM image of a typical mesopore of mesoporous PTO fibers. Scale bar, 5 nm. b Zoom-in image corresponding to area 2 in a. Scale bar, 2 nm. The positions of Pb and Ti atoms were marked in the image using yellow and red dots, respectively. c EELS spectra of O K edges measured in area 1–3 in a, respectively
