Electroceramic calcium copper titanates (CaCu 3 Ti 4 O 12, CCTO), with high dielectric
permittivities (ε) of approximately 10 5 and 10 4, respectively, for single crystal and bulk …

Many transition-metal oxides show very large (“colossal”) magnitudes of the dielectric
constant and thus have immense potential for applications in modern microelectronics and …

In this review, an overview of acoustic-and radio-frequency frequency dielectric properties of
multiferroic oxides, the significant dynamic response of electrical polarization to small …

In the present work, the authors report results of broadband dielectric spectroscopy on
various samples of CaCu 3 Ti 4 O 12 (CCTO), also including single-crystalline material …

In the present work, we provide broadband dielectric spectra showing strong electrode
polarization effects for various materials, belonging to very different material classes. This …

This paper proposes a polaronic stacking fault defect model as the origin of the huge
dielectric properties in CaCu 3 Ti 4 O 12 (CCTO) materials. The model reconciles the …

The ceramics СaСu 3 Тi 4–x Al x О 12–0.5 x–y F y were prepared using solid-state reactions
technique and pre-synthesized CaTiO 3. It was found that the resistances of both the grain …

A combined powder X-ray lattice parameter and ceramic impedance spectroscopy study is
presented on materials within the CaO–CuO–TiO2 ternary phase diagram. Several …

Since the discovery of colossal dielectric constant in CCTO supercapacitor in 2000,
development of its practical application to energy storage has been of great interest. In spite …

Impedance spectroscopy has been performed on CaCu3Ti4O12 (CCTO) single crystals and
ceramics using Au and InGa alloy electrodes. The extrinsic effect responsible for the giant …