Multiferroic behavior in CdCr2X4 (X = S, Se)

Details Multiferroic behavior in CdCr2X4 (X = S, Se) Multiferroic behavior in CdCr2X4 (X = S, Se)

2005-07-30

arxiv.org/abs/cond-mat/0508014v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1016/j.physb.2006.01.407

The recently discovered multiferroic material CdCr2S4 shows a coexistence of ferromagnetism and relaxor ferroelectricity together with a colossal magnetocapacitive effect. The complex dielectric permittivity of this compound and of the structurally related CdCr2Se4 was studied by means of broadband dielectric spectroscopy using different electrode materials. The observed magnetocapacitive coupling at the magnetic transition is driven by enormous changes of the relaxation dynamics induced by the development of magnetic order.

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