Test station for frequency-domain dielectric spectroscopy of nanocomposites and semiconductors

TN Koltunowicz - Journal of applied spectroscopy, 2015 - Springer
An upgraded test station is described for determining the electrophysical properties of
materials by frequency-domain dielectric spectroscopy. As a result of the upgrade, the range …

AC Hopping Conductance in Nanocomposite Films with Ferromagnetic Alloy Nanoparticles in a PbZrTiO3 Matrix

TN Koltunowicz, P Zukowski, O Boiko, A Saad… - Journal of Electronic …, 2015 - Springer
In this work, the temperature and frequency dependences of the real part of the admittance
[σ (f, T)] of annealed nanocomposite films containing Co 45 Fe 45 Zr 10-based nanoparticles …

Determining the percolation threshold for (FeCoZr) x (CaF2)(100− x) nanocomposites produced by pure argon ion-beam sputtering

P Zukowski, TN Koltunowicz, V Bondariev… - Journal of Alloys and …, 2016 - Elsevier
This study examines the frequency and temperature dependence of conductivity, phase shift
angle and capacity of the (FeCoZr) x (CaF 2)(100− x) nanocomposites, with the metal phase …

The effect of annealing on induction like properties of (FeCoZr) x (CaF2)(100− x) nanocomposite films produced by ion-beam sputtering in the vacuum environment

TN Koltunowicz, P Zukowski, V Bondariev, JA Fedotova… - Vacuum, 2015 - Elsevier
The paper presents frequency f and temperature T dependences of the phase angle θ,
conductivity σ, capacity C p and tgδ for (FeCoZr) x (CaF 2)(100− x) nanocomposite films …

Capacitive properties of nanocomposite (FeCoZr) x (PZT)(100−x) produced by sputtering with the use of argon and oxygen ions beam

TN Koltunowicz, P Zukowski, O Boiko… - Journal of Materials …, 2016 - Springer
The paper established that, the hopping mechanism of the charge exchange for the
(FeCoZr) 64.4 (PZT) 35.6 nanocomposite and the additional polarization of tested sample …

Dielectric properties of nanocomposite (Cu) x (SiO2)(100− x) produced by ion-beam sputtering

TN Koltunowicz, P Zukowski, K Czarnacka… - Journal of Alloys and …, 2015 - Elsevier
It has been established that in the nanocomposite Cu x (SiO 2)(100− x) with the metallic
phase content x= 27.27 at.% the following phenomena occur: hopping conductivity …

Inductive type properties of FeCoZr–CaF2 and FeCoZr–PZT nanocomposites

TN Koltunowicz - Journal of Materials Science: Materials in Electronics, 2015 - Springer
The paper presents investigations into frequency dependences of conductivity, capacitance
and the phase angle θ for nanocomposites (FeCoZr) x (CaF 2)(100− x) and (FeCoZr) x …

Study of dielectric function of (FeCoZr) x (CaF2)(100− x) nanocomposites produced with a beam of argon ions

TN Koltunowicz, P Zukowski, V Bondariev… - Journal of alloys and …, 2015 - Elsevier
The paper presents investigations of frequency and temperature dependences on
capacitance, phase shift and loss tangent of nanocomposites (FeCoZr) x (CaF 2)(100− x) of …

Temperature and frequency dependences of real part of impedance in the FeCoZr-doped PZT nanogranular composites

AV Larkin, AK Fedotov, JA Fedotova… - Materials Science …, 2012 - Springer
The study of carrier transport in granular nanocomposite films consisting of ferromagnetic Fe
45 Co 45 Zr 10 alloy nanoparticles embedded in a low-conductive Pb 81 Sr 4 (Na 5 Bi 5) 15 …

Influence of composition and nanogranular structure of (Co+ Fe+ Zr)/(ZrO) composite films on conductivity and microwave reflective properties

IV Antonets, LN Kotov, YA Golubev - Materials Chemistry and Physics, 2020 - Elsevier
A comparative study were carried out on composition, nanostructure and conductivity of
(Co+ Fe+ Zr)/(ZrO) amorphous granular composite films deposited on polyethylene …