A breakthrough in the intrinsic multiferroic temperature region in Prussian blue analogues.

ABSTRACT: Thin films of [(Fe^II _x Cr^II _1-x )]_1.5[Cr^III(CN)₆]·yH₂O (x ≈ 0.30-0.35, y ≈ 1.77) (1) on FTO substrates (namely film 1) were synthesized with an electrochemical method. Investigation of the ferroelectricity of film 1 at different temperatures reveals that it exhibits ferroelectric behaviour in the temperature range from 10 K to 310 K. Study of the X-ray absorption (XAS) of the crushed film 1 and simulation of the structure of film 1 and crushed film 1 by using the Materials Studio software indicate that the vacancy defects and interactions between the film and FTO substrate make a key contribution to the ferroelectricity of film 1. Owing to the magnetic phase transition

SUBMITTER: Kong Q 

PROVIDER: S-EPMC9076529 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature