Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-11-29
Phys. Rev. B 73, 174427 (2006)
Physics
Condensed Matter
Strongly Correlated Electrons
7 pages, 12 figures
Scientific paper
10.1016/j.physb.2005.11.033
We present longitudinal field muon spin relaxation ($\mu$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.
Chow Kim H.
Keeler T. A.
Macfarlane Andrew W.
Miller R. I.
Parolin T. J.
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