Retraction: Origin of colossal permittivity in (In1/2Nb1/2)TiO2via broadband dielectric spectroscopy.

Influence of manganese doping to the full tensor properties of 0.24Pb(In1/2Nb1/2)O3-0.47Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 single crystals.

Complete sets of elastic, piezoelectric, dielectric, and electromechanical properties of [001]c and [011]c poled pure and 0.5 wt. % manganese-doped 0.24Pb(In1/2Nb1/2)O3-0.47Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 single crystals have been characterized at room temperature. The results indicate that manganese ion substitution in the B-site of perovskite 0.24PIN-0.47PMN-0.29PT single crystals makes the mater...

Evidences of grain boundary capacitance effect on the colossal dielectric permittivity in (Nb + In) co-doped TiO2 ceramics

The (Nb + In) co-doped TiO2 ceramics were synthesized by conventional solid-state sintering (CSSS) and spark plasma sintering (SPS) methods. The phases and microstructures were studied by X-ray diffraction, Raman spectra, field-emission scanning electron microscopy and transmission electron microscopy, indicating that both samples were in pure rutile phase while showing significant difference i...

Ferroelastic aspects of relaxor ferroelectric behaviour in Pb(In1/2Nb1/2)O3- Pb(Mg1/3Nb2/3)O3-PbTiO3 perovskite

Characterization of full set material constants of piezoelectric materials based on ultrasonic method and inverse impedance spectroscopy using only one sample.

The most difficult task in the characterization of complete set material properties for piezoelectric materials is self-consistency. Because there are many independent elastic, dielectric, and piezoelectric constants, several samples are needed to obtain the full set constants. Property variation from sample to sample often makes the obtained data set lack of self-consistency. Here, we present ...

Complex Dielectric Permittivity and Electrical Conductivity Measurements as a Diagnostic Tool for the Detection of Heavy Metals Adsorbed in Bentonite Samples

The adsorption of heavy metals (Pb and Ni) in raw Wyoming bentonite was investigated by means of broadband dielectric spectroscopy (BDS) in the frequency range 10 -2 Hz – 10 6 Hz and at elevated temperatures, up to 1000 o C. In order to reveal various aspects of data interpretation, different formalisms of analysis were investigated, namely, complex electrical conductivity, dielectric modulus a...