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☐ ☆ ✇ Nature

Two-dimensional ferroelectricity in a single-element bismuth monolayer

By: Jian Gou · Hua Bai · Xuanlin Zhang · Yu Li Huang · Sisheng Duan · A. Ariando · Shengyuan A. Yang · Lan Chen · Yunhao Lu · Andrew Thye Shen Wee — April 5th 2023 at 00:00

Nature, Published online: 05 April 2023; doi:10.1038/s41586-023-05848-5

A single-element ferroelectric state is observed in a black phosphorus-like bismuth layer, in which the ordered charge transfer and the regular atom distortion between sublattices happen simultaneously and ferroelectric switching is further visualized experimentally.
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