We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Realization of sextuple polarization states and interstate switching in antiferroelectric CuInP<sub>2</sub>S<sub>6</sub>.
- Authors
Li, Tao; Wu, Yongyi; Yu, Guoliang; Li, Shengxian; Ren, Yifeng; Liu, Yadong; Liu, Jiarui; Feng, Hao; Deng, Yu; Chen, Mingxing; Zhang, Zhenyu; Min, Tai
- Abstract
Realization of higher-order multistates with mutual interstate switching in ferroelectric materials is a perpetual drive for high-density storage devices and beyond-Moore technologies. Here we demonstrate experimentally that antiferroelectric van der Waals CuInP2S6 films can be controllably stabilized into double, quadruple, and sextuple polarization states, and a system harboring polarization order of six is also reversibly tunable into order of four or two. Furthermore, for a given polarization order, mutual interstate switching can be achieved via moderate electric field modulation. First-principles studies of CuInP2S6 multilayers help to reveal that the double, quadruple, and sextuple states are attributable to the existence of respective single, double, and triple ferroelectric domains with antiferroelectric interdomain coupling and Cu ion migration. These findings offer appealing platforms for developing multistate ferroelectric devices, while the underlining mechanism is transformative to other non-volatile material systems. Materials with higher-order multistates are desired for non-Boolean high-density storage. Here the authors realized sextuple intrinsic polarization states in vdW CuInP2S6, and reversible transformation among sextuple-, quadruple-, and double-polarization orders.
- Subjects
FERROELECTRIC materials; FERROELECTRIC devices; ION migration &; velocity; COPPER; ELECTRIC fields
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-46891-8