Annealing of (CoFeZr)x(CaF2)100-x Nanocomposites Produced by the Ion-Beam Sputtering in the Ar and O2 Ambient

T.N. Kołtunowicza, P. Zhukowski a, V. Bondariev a, J.A. Fedotova b and A.K. Fedotovc aLublin University of Technology, Nadbystrzycka 38a, 20-618 Lublin, Poland bNational Center of Particles and High Energy Physics of the Belarusian State University, M. Bogdanovich 153, 220040 Minsk, Belarus cBelarusian State University, Independence 4, 220030 Minsk, Belarus

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This paper presents the investigations of electrical properties and effect of annealing on conductivity of (CoFeZr)x(CaF2)100-x nanocomposites produced by ion-beam sputtering in the Ar and O2 ambient. Investigations into conductivity of (CoFeZr)x(CaF2)100-x nanocomposites depending on the measuring temperature and the annealing temperature have been performed. The application of a combined argon-oxygen beam brings about lowering of the potential barrier on the surface of nanoparticles. In the course of annealing the additional oxidation occurs. First it proceeds on the surface and then all through the metallic-phase particles.

DOI: 10.12693/APhysPolA.123.932 PACS numbers: 62.23.Pq, 79.20.Rf, 81.40.Ef, 72.80.Le