Electric Relaxation in Nb₆VSb₃O₂₅-Ceramics

• Authors: T. Groń , E. Filipek , M. Piz , Z. Kukuła , S. Pawlus
• Languages of publication: EN

Abstracts

EN

Broadband dielectric spectroscopy measurements of Nb₆VSb₃O₂₅ showed that in both the real (ε') and imaginary (ε'') components of permittivity there is visible relaxation process strongly obscured by dc conductivity. Application of the electric modulus representation of the data enables to study temperature evolution of this relaxation together with conductivity relaxation. It was showed that the activation energies for both processes are close. Low-frequency loss tangent increases strongly with temperature, suggesting that in the compound under study additional energy losses are associated with the conduction of electric current, as determined by the Joule-Lenz law.

Keywords

EN

77.22.Ch; 77.22.Gm; 77.84.Bw

Discipline

• 77.22.Gm: Dielectric loss and relaxation
• 77.84.Bw: Elements, oxides, nitrides, borides, carbides, chalcogenides, etc.
• 77.22.Ch: Permittivity (dielectric function)(for low-permittivity dielectric films, see 77.55.Bh; for high-permittivity gate dielectric films, 77.55.D-)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 3
• Pages: 355-358

Dates

published

2016-03

received

2015-11-22

(unknown)

2016-02-19

Contributors

author

T. Groń

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

E. Filipek

• Department of Inorganic and Analytical Chemistry, West Pomeranian University of Technology, al. Piastów 42, 71-065 Szczecin, Poland

author

M. Piz

• Department of Inorganic and Analytical Chemistry, West Pomeranian University of Technology, al. Piastów 42, 71-065 Szczecin, Poland

author

Z. Kukuła

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

author

S. Pawlus

• Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
• Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

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Identifiers

DOI

10.12693/APhysPolA.129.355