<i>A</i>CrF₃ Jahn-Teller-Distorted Fluoroperovskites: Expanding to RbCrF₃ and CsCrF₃.

ABSTRACT: The Jahn-Teller effect significantly affects the CrF₆ octahedra in Cr(II) fluoroperovskites. Here, we report the synthesis, crystal structures, and magnetic properties of RbCrF₃ and CsCrF₃, thereby completing a comprehensive investigation of the ACrF₃ fluoroperovskites. Powder samples are prepared using a wet-chemical method, which allows stabilization of Cr(II). RbCrF₃ predominantly adopts the P4/mbm space group; however, the absence of the expected (211) peak suggests a limited correlation length, and we demonstrate that this is a result of stacking faults in the rotation of the distorted CrF₆ octahedra along the c-axis. We estimate around 5-10% of I4/mcm-type stacking in P4

SUBMITTER: Fjellvag OS 

PROVIDER: S-EPMC12442058 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature