Relaxation dynamics and colossal magnetocapacitive effect in CdCr2S4

Abstract

A thorough investigation of the relaxational dynamics in the recently discovered multiferroic CdCr2S4 showing a colossal magnetocapacitive effect has been performed. Broadband dielectric measurements without and with external magnetic fields up to 10 T provide clear evidence that the observed magnetocapacitive effect stems from enormous changes of the relaxation dynamics induced by the development of magnetic order.

4 pages, 4 figures

References in corpus (4)

• 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
• A Novel Dielectric Anomaly in Cuprates and Nickelates: Signature of an Electronic Glassy State

Cited by in corpus (8)

• The multiferroic phases of (Eu:Y)MnO3
• Colossal magnetocapacitance and colossal magnetoresistance in HgCr2S4
• Polar phonons and intrinsic dielectric response of the ferromagnetic insulating spinel CdCr${}_2$S${}_4$ from first principles
• Colossal magnetocapacitance and scale-invariant dielectric response in phase-separated manganites
• Evidence for local lattice distortions in giant magnetocapacitive CdCr2S4
• Colossal magnetocapacitive effect in differently synthesized and doped CdCr2S4
• Discovery of Strange Kinetics in Bulk Material: Correlated Dipoles in CaCu3Ti4O12
• On the complexity of spinels: Magnetic, electronic, and polar ground states