Specific Heat of SnTe-MnTe System from 2 to 25°K

The low-temperature specific heat of a series of semiconductor alloys of the SnTe-MnTe system, for Mn to Sn ratios of 0 to 0.1 has been measured in the temperature range 2 to 25°K. Large anomalies are observed due, presumably, to the ordering of the Mn
⁺⁺
spin system. The temperature region over which these anomalies occur is roughly the region in which ferromagnetism is observed.