Investigation of the transport properties of cation-substituted solid solutions [Yb.sub.x][Mn.sub.1-x]S

The electrical properties and thermopower of solid solutions [Yb.sub.x][Mn.sub.1-x]S with substitution concentrations 0 < x [less than or equal to] 0.2 have been studied in the temperature range of 77-1050 K. It has been found that the electrical conductivity has a semiconducting character, and t...

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Published inPhysics of the solid state pp. 886 - 890
Main Authors Aplesnin, S.S, Romanova, O.B, Khar'kov, A.M, Galyas, A.I
Format Journal Article
LanguageEnglish
Published Springer 01.05.2015
Subjects
Activation energy
Electric properties
Electrical conductivity
Investigations
Magnetic properties
Rare earth metals
Solid solutions
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Summary:The electrical properties and thermopower of solid solutions [Yb.sub.x][Mn.sub.1-x]S with substitution concentrations 0 < x [less than or equal to] 0.2 have been studied in the temperature range of 77-1050 K. It has been found that the electrical conductivity has a semiconducting character, and the thermopower changes its sign from positive to negative as the substitution concentration in [Yb.sub.x][Mn.sub.1-x]S increases. It has been established that the activation energy decreases with increasing ytterbium concentration. The model of impurity donor 4f states satisfactorily agrees with the data on the electrical resistivity and the thermopower.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783415050029