The Features of Real Part of Admittance in the Nanocomposites (Fe_{45}Co_{45}Zr_{10})_{x}(Al_2O_3)_{100 - x} Manufactured by the Ion-Beam Sputtering Technique with Ar Ions

• Authors: T. Kołtunowicz , P. Zhukowski , V. Fedotova , A. Saad , A. Larkin , A. Fedotov
• Languages of publication: EN

Abstracts

EN

The temperature and frequency dependences of the admittance real part σ (T, f) in granular (Fe_{45}Co_{45}Zr_{10})_{x}(Al_2O_3)_{100 - x} nanocomposite films around the percolation threshold x_{C} were investigated. The behaviour of σ (T, f) vs. the temperature and frequency over the ranges 77-300 K and 50 Hz-1 MHz, respectively, displays the predominance of an activation (hopping) conductance mechanism for the samples below the percolation threshold x_{C} and of a metallic one beyond the x_{C} determined as 54 ± 2 at.%. The mean hopping range d for the nanoparticles diameter D was estimated at different metallic phase content x.

Keywords

EN

79.20.Rf; 73.22.-f; 84.37.+q; 72.20.Ee

Discipline

• 84.37.+q: Measurements in electric variables (including voltage, current, resistance, capacitance, inductance, impedance, and admittance, etc.)
• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 79.20.Rf: Atomic, molecular, and ion beam impact and interactions with surfaces(for atomic and molecular beam techniques, see 37.20.+j; see also 34.35.+a Interactions of atoms and molecules with surfaces)
• 72.20.Ee: Mobility edges; hopping transport

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 120
• Issue: 1
• Pages: 35-38

Dates

published

2011-07

Contributors

author

T. Kołtunowicz

• Lublin University of Technology, Nadbystrzycka 38a, 20-618 Lublin, Poland

author

P. Zhukowski

• Lublin University of Technology, Nadbystrzycka 38a, 20-618 Lublin, Poland

author

V. Fedotova

• Scientific-Practical Material Research Centre NAS of Belarus, P. Brovki 19, 220072 Minsk, Belarus

author

A. Saad

• Al-Balqa Applied University, P.O. Box 2041, Amman 11953, Jordan

author

A. Larkin

• Belarussian State University, Independence 4, 220030 Minsk, Belarus

author

A. Fedotov

• Belarussian State University, Independence 4, 220030 Minsk, Belarus

References

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Identifiers

DOI

10.12693/APhysPolA.120.35