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DC conductivity and Seebeck coefficient of nonstoichiometric MgCuZn ferrites Cover

DC conductivity and Seebeck coefficient of nonstoichiometric MgCuZn ferrites

Materials Science-Poland
Volume 35 (2017): Issue 1 (March 2017)
By: W. Madhuri,  S. Roopas Kiran,  M. Penchal Reddy,  N. Ramamanohar Reddy and  K.V. Siva Kumar  
Open Access
|Feb 2017

Figures & Tables

X-ray diffraction patterns of Mg0.5−xCuxZn0.5Fe1.9O4−δ.
X-ray diffraction patterns of Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Variation of DC electrical conductivity with copper concentration in Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Variation of DC electrical conductivity with copper concentration in Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Variation of DC electrical conductivity with temperature in Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Variation of DC electrical conductivity with temperature in Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Variation of Seebeck coefficient with copper concentration in iron deficient ferrite series.
Variation of Seebeck coefficient with copper concentration in iron deficient ferrite series.
Variation of Seebeck coefficient with temperature in Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Variation of Seebeck coefficient with temperature in Mg0.5−xCuxZn0.5Fe1.9O4−δ.
Temperature dependence of mobility µ in Mg0.5−xCuxZn0.5Fe1.9O4−δ (a) x = 0.1 and (b) x = 0.15 to 0.25.
Temperature dependence of mobility µ in Mg0.5−xCuxZn0.5Fe1.9O4−δ (a) x = 0.1 and (b) x = 0.15 to 0.25.

Activation energies from DC conductivity studies and mobility of Mg0_5−xCuxZn0_5Fe1_9O4−δ_

From DC conductivityFrom mobility
Copper contentRegion IRegion IIRegion IRegion II
xΔE1 [eV]ΔE2 [eV]ΔE1 [eV]ΔE2 [eV]
0.10.450.660.230.61
0.150.350.870.390.86
0.20.360.920.290.81
0.250.730.90.260.84
DOI: https://doi.org/10.1515/msp-2017-0003 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 40 - 44
Submitted on: Apr 11, 2016
Accepted on: Nov 17, 2016
Published on: Feb 8, 2017
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
ferrites,
conduction mechanism,
Seebeck coefficient,
mobility
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2017 W. Madhuri, S. Roopas Kiran, M. Penchal Reddy, N. Ramamanohar Reddy, K.V. Siva Kumar, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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