TL;DR: In this article, a double conical scanning system was designed to collect a large data set of integrated intensities that were more suitable for structure determination by electron diffraction, both by removing excitation errors due to curvature of the Ewald sphere and also by reducing non-systematic dynamical effects.
TL;DR: The hetero-interface along the [001]rh/[103]mon zone axis direction is demonstrated, indicating the two-phase nature of these lithium-rich cathode materials.
Abstract: About phase: The coexistence of rhombohedral LiTMO2 (TM=Ni, Co, or Mn) and monoclinic Li2MnO3-like structures inside Li1.2Mn0.567Ni0.166Co0.067O2 is revealed directly at atomic resolution. The hetero-interface along the [001]rh/[103]mon zone axis direction is demonstrated, indicating the two-phase nature of these lithium-rich cathode materials (green Li, blue Mn, red O, cyan TM).
TL;DR: Growing nanobelts along different equivalent directions opens a new avenue for the preparation of novel nanostructured materials.
Abstract: Zigzag SnO2 nanobelts have been synthesized by evaporating tin grain in air. XRD, SEM, and TEM were employed to characterize the prepared samples. SEM images showed large amounts of zigzag nanobelts with periodic morphology. XRD result showed a pure tetragonal SnO2 phase. HRTEM and SAED revealed a single crystal structure with [010] zone axis on the whole zigzag zone. The zigzag structure is deduced to be formed by shifting the growth direction from [101] to [10] or vice versa. Growing nanobelts along different equivalent directions opens a new avenue for the preparation of novel nanostructured materials.
TL;DR: It is demonstrated that conventional TEM rules for diffraction contrast such as g·b and g·R are applicable in STEM and appear to be very useful not only for defect analysis, but for general defect observation.
TL;DR: In this article, high-resolution transmission electron microscopy image simulation for Moire fringes of η′ precipitates in the Al matrix presented a good match with the experimental result.