Fig. 3: Quantitative analysis on the atomic shift of La, Co ions, and tilt of [CoO5] square pyramids. | Nature Communications

Fig. 3: Quantitative analysis on the atomic shift of La, Co ions, and tilt of [CoO5] square pyramids.

From: Near-room temperature ferromagnetic insulating state in highly distorted LaCoO2.5 with CoO5 square pyramids

Fig. 3

a The iDPC image of the nLCO2.5 phase. The structural model is overlaid to show the contrast assignment of La (green), Co (pink), and O (red) atoms. The scale bar is 1 nm. b Overlaid iDPC image in a by circles and polyhedra, where La, Co, and O atom columns are outlined by blue, pink, and red circles, respectively; projected CoO5 square pyramids are labeled by pink polyhedral; three kinds of Co sites are also indicated by red arrows. c Periodic out-of-plane atomic shifts of La, where the HAADF image is inserted on the top to demonstrate the correspondence relationship. d Periodic in-plane Co–Co distances, where relatively small Co1′-Co1 and large Co1-Co2, Co2-Co1′ distances are indicated by blue and yellow columns, respectively. e Tilt angles of CoO5 square pyramids on Co1, Co2, and Co1′ sites, which are indicated by brown, pink, and green columns, respectively.

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