Is CdCr2S4 a multiferroic relaxor?

Gustau Catalan () and James F. Scott ()
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Gustau Catalan: University of Cambridge
James F. Scott: University of Cambridge

Nature, 2007, vol. 448, issue 7156, E4-E5

Abstract: Abstract Arising from: J. Hemberger et al. Nature 434, 364–367 (2005)10.1038/nature03348 ; Hemberger et al. reply Materials showing simultaneous ferroelectric and magnetic ordering are attracting a great deal of interest because of their unusual physics and potential applications1. Hemberger et al.2 have reported relaxor-like dielectric properties and colossal magnetocapacitance (in excess of 500%) for the cubic spinel compound CdCr2S4 and related isomorphs3,4,5, concluding that CdCr2S4 is a multiferroic relaxor. We argue here, however, that their results might also be explained by a conductive artefact.

Date: 2007
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DOI: 10.1038/nature06156

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