Low temperature thermal conductivity of pure and doped single crystals of semiconducting SmS |
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| Authors: | K. Benbachir J. Mazuer J.P. Senateur |
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| Affiliation: | Centre de Recherches sur les Très Basses Températures, C.N.R.S., BP 166 X, 38042 Grenoble-Cédex, France;Laboratoire de Matériaux et de Génie Physique (ER 155-CNRS) ENSIEG, BP 46, 38042 Saint-Martin-d''Hères, France |
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| Abstract: | We measured the thermal conductivity of pure SmS and of SmS doped with P, As and Se between 1.5 and 350 K. The lattice thermal conductivity of pure samples and of SmSSe obeys a T? law for temperatures T greater than 150 K, and is very sensitive to point defects in the lattice. The highest values are measured on samples close to the stoichiometric composition. P and As dopants act as phonon scattering centers and considerably reduce the low temperature lattice conductivity. |
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