Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Kołtunowicz Tomasz, Żukowski Paweł, Fedotov Aleksander K., Larkin Andrei V., Patryn Aleksy, Andryevskyy Bohdan, Saad Anis M., Fedotova Julia A., Fedotova Vera V.
Rok wydania:	2013
Wersja dokumentu:	Drukowana \| Elektroniczna
Język:	angielski
Numer czasopisma:	4
Wolumen/Tom:	19
Strony:	37 - 40
Impact Factor:	0,445
Web of Science® Times Cited:	31
Scopus® Cytowania:	28
Bazy:	Web of Science \| Scopus \| Web of Science Core Collection
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	We observed an inductive contribution to impedance in granular (Fe0.45Co0.45Zr0.10)x(Al2O3)(1-x) and (Fe0.45Co0.45Zr0.10)x(PZT)(1-x) nanocomposite films deposited in Ar + O2 atmosphere. The films with x » 0.30 (in dielectric regime) demonstrated negative capacitance effect which were explained by hopping conductance of electrons over FeCoZr nanoparticles covered with complicated CoFe-oxides and embedded into dielectric matrix. In particular, at the determined conditions such a structure of nanocomposite resulted in the increase of hopping electron mean life time on nanoparticles and delay its returning jump under subjection of alternating electric field that created the possibility for positive angles of the phase shifts q and properlynegative capacitance (inductive-like contribution) effect.

Influence of matrix type on negative capacitance effect in nanogranular composite films FeCoZr-Insulator