Magnetic Neutron Scattering of Thermally Quenched K-Co-Fe Prussian Blue Analogue Photomagnet

TL;DR

This study investigates the magnetic properties of a thermally quenched Prussian blue analogue using neutron diffraction, revealing ferromagnetic behavior with field-induced moments aligned parallel to the applied magnetic field.

Contribution

It provides new insights into the magnetic order and spin alignment in a thermally quenched K-Co-Fe Prussian blue analogue through neutron scattering analysis.

Findings

Magnetic fields induce moments parallel to the applied field.

Sample exhibits ferromagnetic behavior with a wandering axis.

Onsite coherent magnetization of Co and Fe spins established.

Abstract

Magnetic order in the thermally quenched photomagnetic Prussian blue analogue coordination polymer K0.27Co[Fe(CN)6]0.73[D2O6]0.27 1.42D2O has been studied down to 4 K with unpolarized and polarized neutron powder diffraction as a function of applied magnetic field. Analysis of the data allows the onsite coherent magnetization of the Co and Fe spins to be established. Specifically, magnetic fields of 1 T and 4 T induce moments parallel to the applied field, and the sample behaves as a ferromagnet with a wandering axis.