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Muon spin relaxation study of the magnetism in unilluminated Prussian Blue analogue photomagnets

Z. Salman·T. J. Parolin·K. H. Chow·T. A. Keeler·R. I. Miller·D. Wang·W. A. MacFarlane
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Abstract

We present longitudinal field muon spin relaxation ($μ$SR) measurements in the unilluminated state of the photo-sensitive molecular magnetic Co-Fe Prussian blue analogues M$_{1-2x}$Co$_{1+x}$[Fe(CN)$_6$]$\cdot z$ H$_2$O, where M=K and Rb with $x=0.4$ and $\simeq 0.17$, respectively. These results are compared to those obtained in the $x=0.5$ stoichiometric limit, Co$_{1.5}$[Fe(CN)$_6$]$\cdot 6$ H$_2$O, which is not photo-sensitive. We find evidence for correlation between the range of magnetic ordering and the value of $x$ in the unilluminated state which can be explained using a site percolation model.

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Z. Salman, T. J. Parolin, K. H. Chow, T. A. Keeler, R. I. Miller, D. Wang, W. A. MacFarlane. 2006-06-07. Muon spin relaxation study of the magnetism in unilluminated Prussian Blue analogue photomagnets. https://doi.org/10.1016/j.physb.2005.11.033

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