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Issue 6, 2011
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Anisotropic magnetism in Prussian blue analogue films

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A series of Prussian blue analogue (PBA) thin films with thicknesses ranging from 25 nm to 2 μm and with the chemical formula RbjM1k[M2(CN)6]l·nH2O have been synthesized using sequential adsorption techniques (where M1 = Co2+, Ni2+, Cu2+, or Zn2+and M2 = Cr3+ or Fe3+). Since the resulting materials possess the PBA structure, changing the metal ions effectively tunes the magnetization density because SCo = 3/2, SNi = 1, SCu = 1/2, and SZn = 0 on the divalent metal sites and SCr = 3/2 and SFe = 1/2 on the trivalent metal sites. The effect of changing metal ions on the magnetic susceptibility, and specifically the difference between parallel and perpendicular orientations of the films with respect to the applied magnetic field, was investigated with SQUID magnetometry, and all samples, except the ZnFe PBA films, showed magnetic anisotropy. The films were also characterized with infrared spectroscopy, energy dispersive X-ray spectroscopy, atomic force microscopy, and scanning electron microscopy.

Graphical abstract: Anisotropic magnetism in Prussian blue analogue films

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The article was received on 28 Oct 2010, accepted on 06 Jan 2011 and first published on 02 Feb 2011

Article type: Paper
DOI: 10.1039/C0NJ00841A
New J. Chem., 2011,35, 1320-1326

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    Anisotropic magnetism in Prussian blue analogue films

    D. M. Pajerowski, J. E. Gardner, D. R. Talham and M. W. Meisel, New J. Chem., 2011, 35, 1320
    DOI: 10.1039/C0NJ00841A

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