Multiferroic behavior in CdCr2X4 (X = S, Se)

Abstract

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.

References in corpus (3)

• Materials with Colossal Dielectric Constant: Do They Exist?
• Non-intrinsic origin of the Colossal Dielectric Constants in CaCu3Ti4O12
• Relaxor ferroelectricity and colossal magnetocapacitive coupling in ferromagnetic CdCr2S4

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• On the complexity of spinels: Magnetic, electronic, and polar ground states
• Discovery of room temperature multiferroicity and magneto-electric coupling in Fe3Se4 nanorods