V. M. Egorov, V. V. Kaminskii, M. V. Romanova, A. V. Golubkov, “Thermal effects in Sm<nobr>$_{1+x}$</nobr>S in the homogeneity range”, Zhurnal Tekhnicheskoi Fiziki, 2012, Volume 82, Issue 7,Pages <nobr>66

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Thermal effects in Sm$_{1+x}$S in the homogeneity range

V. M. Egorov, V. V. Kaminskii, M. V. Romanova, A. V. Golubkov

Ioffe Institute, St. Petersburg

Abstract: It is found that polycrystalline Sm$_{1+x}$S semiconductors absorb heat in the temperature range 240–260 K. The thermodynamic parameters of the heat absorption effect are determined. It is shown that this effect is due to the collective transfer of electrons from impurity donor levels to the conduction band.

Received: 23.05.2011