Electronic peltier effect in LixCu(2 − x) − δS

Temperature dependences of the Peltier coefficient are studied in the temperature range of 300–700 K under variation of the composition of the Li x Cu(2 − x) − δS samples. The obtained values of the Peltier coefficient of the Li0.05Cu1.95 − δS samples with a different copper content are within the range of 0.1–0.4 J/A, which is somewhat higher than the similar parameters of bismuth telluride, the basic material of semiconductor coolers.