Noncollinear Electric Dipoles in a Polar Chiral Phase of CsSnBr3 Perovskite

Polar and chiral crystal symmetries can functionalise materials by coupling to mechanical, electronic, optical, and magnetic degrees of freedom. For the 3D perovskite, CsSnBr₃, new phases below 85 K and 77 K are described. We contribute to their characterization by SHG and PL probes within this collaboration. The work suggests CsSnBr₃ as candidate for bulk Rashba effects.

Douglas H. Fabini et al., Noncollinear Electric Dipoles in a Polar Chiral Phase of CsSnBr₃ Perovskite J. Am. Chem. Soc. 146 (23), 15701-15717 (2024)