Atomic Imaging of Electrically Switchable Striped Domains in β'-In₂ Se₃.

ABSTRACT: 2D ferroelectricity in van-der-Waals-stacked materials such as indium selenide (In₂ Se₃ ) has attracted interests because the ferroelectricity is robust even in ultrathin layers, which is useful for the miniaturization of ferroelectric field effect transistors. To implement In₂ Se₃ in nanoscale ferroelectric devices, an understanding of the domain structure and switching dynamics in the 2D limit is essential. In this study, a biased scanning tunnelling microscopy (STM) tip is used to locally switch polarized domains in β'-In₂ Se₃ , and the reconfiguration of these domains are directly visualized using STM. The room-temperature surface of β'-In₂ Se₃ breaks into 1D nanostriped domains, which changes into

SUBMITTER: Chen Z 

PROVIDER: S-EPMC8425890 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature