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Issue 42, 2013
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MOKE magnetometry as a probe of surface magnetic impurities in electropolymerized magnetic thin films of the Prussian blue analogue Fe3[Cr(CN)6]2·15 H2O

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Abstract

A magneto-optical Kerr effect (MOKE) study has been performed on electrodeposited thin films of the Prussian blue analogue Fe3[Cr(CN)6]2·15H2O (1). This study reveals the onset of hysteretic magnetic signals at temperatures above 60 K, in contrast with magnetic susceptibility measurements which indicate a Curie temperature of 23 K for this ferromagnetic film. The origin of this discrepancy is due to the presence of amorphous iron oxide particles that accumulate in the surface of the material. This report illustrates the potential of MOKE magnetometry for the detection of surface chemical impurities that remain elusive using bulk magnetic techniques.

Graphical abstract: MOKE magnetometry as a probe of surface magnetic impurities in electropolymerized magnetic thin films of the Prussian blue analogue Fe3[Cr(CN)6]2·15 H2O

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Publication details

The article was received on 09 Jul 2013, accepted on 04 Sep 2013 and first published on 05 Sep 2013


Article type: Paper
DOI: 10.1039/C3TC31316F
Citation: J. Mater. Chem. C, 2013,1, 6981-6988
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    MOKE magnetometry as a probe of surface magnetic impurities in electropolymerized magnetic thin films of the Prussian blue analogue Fe3[Cr(CN)6]2·15 H2O

    E. Coronado, M. Fitta, J. P. Prieto-Ruiz, H. Prima-García, F. M. Romero and A. Cros, J. Mater. Chem. C, 2013, 1, 6981
    DOI: 10.1039/C3TC31316F

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