Anisotropic electrical properties of a eutectic InSb + MnSb composite

The temperature dependences of the Hall coefficient, electrical conductivity, and thermoelectric power for a eutectic InSb + MnSb composite have been studied in the temperature range from 80 to 700 K. Electron-microscopic results confirm that the system is in a two-phase state and consists of an InS...

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Bibliographic Details
Published in:Inorganic materials 2016-04, Vol.52 (4), p.423-428
Main Authors: Mamedov, I. Kh, Arasly, D. H., Khalilova, A. A., Rahimov, R. N.
Format: Article
Language:English
Subjects:
Anisotropy
Chemistry
Chemistry and Materials Science
Electrical conductivity
Electrical resistivity
Eutectic composition
Eutectic temperature
Inclusions
Indium antimonides
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Intermetallics
Materials Science
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Summary:The temperature dependences of the Hall coefficient, electrical conductivity, and thermoelectric power for a eutectic InSb + MnSb composite have been studied in the temperature range from 80 to 700 K. Electron-microscopic results confirm that the system is in a two-phase state and consists of an InSb matrix and needle-like MnSb metallic inclusions. The inclusions are surrounded by interfacial zones ~0.3 μm in width. The observed anisotropy in the transport properties of the material is attributed to a short-circuiting effect of the metallic inclusions. Interpretation in terms of effective medium theory with allowance for the interfacial zones suggests that they make a significant contribution to the electrical conductivity anisotropy.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168516040105