Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere

This presented work investigates the structure and temperature relationship/dependence of the DC conductivity σ(T) in the (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x nanocomposites deposited in Ar atmosphere with composition (30<x<100 at.%) and temperature (2<T<300 K). It is shown that VRH σ(T) disp...

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Main Authors: Ivan A. Svito, Alexander K. Fedotov, Anis Saad, Momir Milosavljević, Julia A. Fedotova, Tomasz N. Kołtunowicz, Paweł Żukowski
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Advances in Condensed Matter Physics
Online Access:http://dx.doi.org/10.1155/2015/320187
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author Ivan A. Svito
Alexander K. Fedotov
Anis Saad
Momir Milosavljević
Julia A. Fedotova
Tomasz N. Kołtunowicz
Paweł Żukowski
author_facet Ivan A. Svito
Alexander K. Fedotov
Anis Saad
Momir Milosavljević
Julia A. Fedotova
Tomasz N. Kołtunowicz
Paweł Żukowski
author_sort Ivan A. Svito
collection DOAJ
description This presented work investigates the structure and temperature relationship/dependence of the DC conductivity σ(T) in the (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x nanocomposites deposited in Ar atmosphere with composition (30<x<100 at.%) and temperature (2<T<300 K). It is shown that VRH σ(T) displayed crossover from Mott-like to Shklovskii-Efros regimes which occurred at temperatures of 100–120 K. It is also noted that the observed shift of the percolation threshold to higher concentrations of metallic fraction can be attributed to the disordering of the metallic nanoparticles due to the incorporation of the residual oxygen in the vacuum chamber during the deposition procedure.
format Article
id doaj-art-778a0ac3766d481bb9de1a9dbbe4b7c5
institution Kabale University
issn 1687-8108
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language English
publishDate 2015-01-01
publisher Wiley
record_format Article
series Advances in Condensed Matter Physics
spelling doaj-art-778a0ac3766d481bb9de1a9dbbe4b7c52025-02-03T05:44:30ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242015-01-01201510.1155/2015/320187320187Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas AtmosphereIvan A. Svito0Alexander K. Fedotov1Anis Saad2Momir Milosavljević3Julia A. Fedotova4Tomasz N. Kołtunowicz5Paweł Żukowski6Belarusian State University, Independence Avenue 4, 220030 Minsk, BelarusBelarusian State University, Independence Avenue 4, 220030 Minsk, BelarusPhysics Department, Al Balqa Applied University, P.O. Box 4545, Amman 11953, JordanVinča Institute of Nuclear Sciences, Belgrade University, 11001 Belgrade, SerbiaNational Centre for Particles and High Energy Physics of Belarusian State University, Bogdanovich 153, 220040 Minsk, BelarusLublin University of Technology, 38a Nadbystrzycka Street, 20-618 Lublin, PolandLublin University of Technology, 38a Nadbystrzycka Street, 20-618 Lublin, PolandThis presented work investigates the structure and temperature relationship/dependence of the DC conductivity σ(T) in the (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x nanocomposites deposited in Ar atmosphere with composition (30<x<100 at.%) and temperature (2<T<300 K). It is shown that VRH σ(T) displayed crossover from Mott-like to Shklovskii-Efros regimes which occurred at temperatures of 100–120 K. It is also noted that the observed shift of the percolation threshold to higher concentrations of metallic fraction can be attributed to the disordering of the metallic nanoparticles due to the incorporation of the residual oxygen in the vacuum chamber during the deposition procedure.http://dx.doi.org/10.1155/2015/320187
spellingShingle Ivan A. Svito
Alexander K. Fedotov
Anis Saad
Momir Milosavljević
Julia A. Fedotova
Tomasz N. Kołtunowicz
Paweł Żukowski
Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere
Advances in Condensed Matter Physics
title Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere
title_full Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere
title_fullStr Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere
title_full_unstemmed Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere
title_short Low-Temperature DC Carrier Transport in (Fe0.45Co0.45Zr0.10)x(Al2O3)1−x Nanocomposites Manufactured by Sputtering in Pure Ar Gas Atmosphere
title_sort low temperature dc carrier transport in fe0 45co0 45zr0 10 x al2o3 1 x nanocomposites manufactured by sputtering in pure ar gas atmosphere
url http://dx.doi.org/10.1155/2015/320187
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