Physics – Condensed Matter – Materials Science
Scientific paper
2007-01-01
New J. Phys. 9 (2007) 222
Physics
Condensed Matter
Materials Science
10 pages, 6 figures in text, expanded text and data
Scientific paper
10.1088/1367-2630/9/7/222
Nanoparticles of rubidium cobalt hexacyanoferrate (Rb$_j$Co$_k$[Fe(CN)$_6$]$_l \cdot n$H$_2$O) were synthesized using different concentrations of the polyvinylpyrrolidone (PVP) to produce four different batches of particles with characteristic diameters ranging from 3 to 13 nm. Upon illumination with white light at 5 K, the magnetization of these particles increases. The long-range ferrimagnetic ordering temperatures and the coercive fields evolve with nanoparticle size. At 2 K, particles with diameters less than approximately 10 nm provide a Curie-like magnetic signal.
Frye F. A.
Meisel Mark W.
Pajerowski D. M.
Talham D. R.
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