Ferroelectricity and Rashba Effect in a Two-Dimensional Dion-Jacobson Hybrid Organic–Inorganic Perovskite

• DOI: 10.1021/jacs.9b07776
• Publication Date: 2019-09-16T04:13:21Z
• Authors: In-Hyeok Park; Qiannan Zhang; Ki Chang Kwon; Ziyu Zhu; Wei Yu; Kai Leng; David Giovanni; Hwa Seob Choi; Ibrahim Abdelwahab; Qing-Hua Xu; Tze Chien Sum; Kian Ping Loh
• Keywords: Rashba effect; Point reflection

Hybrid organic–inorganic perovskites (HOIPs) are a new generation of high-performance materials for solar cells and light emitting diodes. Beyond these applications, ferroelectricity spin-related properties HOIPs increasingly attracting interests. The presence strong spin–orbit coupling, allied with symmetry breaking ensured by remanent polarization, should give rise to Rashba-type splitting electronic bands in HOIP. However, the report both Rashba effect HOIP is rare. Here we observation robust two-dimensional Dion-Jacobson perovskites.