, D.
, Ravel, B.
, , C.
, , M.
and , D.
(2014),
X-ray Absorption Study of Structural Coupling in Photomagnetic Prussian Blue Analogue Core@Shell Particles, Chemistry of Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915210
(Accessed April 19, 2024)
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X-ray Absorption Study of Structural Coupling in Photomagnetic Prussian Blue Analogue Core@Shell Particles
Published
Author(s)
, , Carissa H. Li, Matthieu F. Dumont, Daniel R. Talham
Abstract
X-ray absorption spectroscopy experiments of core@shell, photomagnetic, Prussian blue analogue heterostructures obtain local structure around the magnetic, transition metal ions before and after illumination. Two samples, containing nickel hexacyanochromate (Ni-Cr) and cobalt hexacyanoferrate (Co-Fe) in Ni-Cr@Co-Fe and Co-Fe@Ni-Cr geometries, were studied. Both materials display the well-known photoinduced valence tautomerism of cobalt ions for Co-Fe, accompanied by a large change in cobalt to nitrogen distances. Furthermore, these experimental results show a structural coupling between the photoactive Co-Fe layer to the passive Ni-Cr layer. Finally, the strain across the heterostructured interface in Co-Fe and Ni-Cr containing core@shell models is investigated with simulations that use custom potentials derived from density functional theory calculations.Citation
Chemistry of Materials
Volume
26
Pub Type
Journals
Download Paper
Keywords
Photoinduced magnetism, Prussian blue analogue, heterostructure, nanoparticle, X-ray, core@shell, X-ray absorption spectroscopy
Citation
Created April 22, 2014, Updated February 19, 2017