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AC conductivity of (FeCoZr)x(PZT)(100-x) nanocomposites produced in vacuum chamber

Autorzy: Oleksandr Boiko, Vitalii Bondariev, Karolina Czarnacka
Typ: Rozdział
Wersja dokumentu: Drukowana | Elektroniczna
Źródło: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015 : conference [WOS]
Redaktorzy: Ryszard S. Romaniuk
Miejsce wydania: Bellingham, USA
Wydawca: Spie-Int Soc Optical Engineering
Rok wydania: 2015
Seria: Proceedings of SPIE, ISSN 0277-786X; nr 9662
Abstrakt: EN
In this work, the temperature and frequency dependences of conductivity σ and Arrhenius plots of annealed nanocomposite films containing Fe45Co45Zr10 - based nanoparticles embedded in a doped PbZrTiO3 ferroelectric matrix were studied. The nanocomposites studied were deposited by sputtering with use of argon and oxygen ions in a vacuum chamber. Tested samples were followed by a 15-min annealing process in air in the temperature range of 398 K ≤ Ta ≤ 748 K with steps of 25 K. The σ(f,T) dependences of nanocomposite samples was measured in ambient temperature range of 77 K < Tp < 373 K at frequencies of 50 Hz < f < 1MHz. It was established that nanocomposite sample with metallic phase content x = 55.6 at.% demonstrates strong temperature and frequency dependences, which is typical for a percolation systems. Type of conduction in such nanostructure is defined as dielectric, which may be related with the additional oxidation of metallic nanoparticles during the annealing process. For the tested sample with x = 88.4 at.%. we observe metallic type of conduction, when metallic nanoparticles form a permanent conductive channels in dielectric matrix. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Publikacja do: modułu sprawozdawczego PBN
Liczba arkuszy: 0,5
Open Access: NIE
Materiał konferencyjny: TAK
Nazwa konferencji: Conference on Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments
Data rozpoczęcia: 25 maja 2015
Data zakończenia: 31 maja 2015
Miasto konferencji: Wilga
Państwo konferencji: Polska
Bazy: Web of Science Core Collection