Interplay between Jahn-Teller Distortions and Structural Phase Transitions in Ruddlesden-Poppers.

ABSTRACT: The interplay between crystallographic symmetry, structural distortions, and the tolerance factor derived from the isotropic ionic radii of the constituent cations and anions of inorganic perovskites and related materials is a ubiquitous concept in solid-state and materials chemistry. Here we demonstrate a model for the phase transition temperatures associated with these structural distortions in layered perovskites by considering the anisotropy associated with cations, which are susceptible to first-order Jahn-Teller distortions. These symmetry-lowering phase transitions are known to have a significant interplay with superconductivity in the high-T_C layered cuprates, and untangling the chemistry that can effectively control them is of the utmost relevance in the search f

SUBMITTER: Herlihy A 

PROVIDER: S-EPMC11887055 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature