Multiresistance states in ferro- and antiferroelectric trilayer boron nitride

Ming Lv, Jiulong Wang, Ming Tian, Neng Wan (), Wenyi Tong (), Chungang Duan and Jiamin Xue ()
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Ming Lv: ShanghaiTech University
Jiulong Wang: East China Normal University
Ming Tian: Southeast University
Neng Wan: Southeast University
Wenyi Tong: East China Normal University
Chungang Duan: East China Normal University
Jiamin Xue: ShanghaiTech University

Nature Communications, 2024, vol. 15, issue 1, 1-7

Abstract: Abstract Stacking two atomic layers together can induce interlayer (sliding) ferroelectricity that is absent in their naturally occurring crystal forms. With the flexibility of two-dimensional materials, more layers could be assembled to give rise to even richer polarization states. Here, we show that three-layer boron nitride can host ferro- and antiferroelectric domains in the same sample. When used as a tunneling junction, the polarization of these domains could be switched in a layer-by-layer procedure, producing multiple resistance states. Theoretical investigation reveals an important role played by the interaction between the trilayer boron nitride and graphene substrate. These findings reveal the great potential and unique properties of 2D sliding ferroelectric materials.

Date: 2024
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DOI: 10.1038/s41467-023-44617-w

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