Magnetic properties of pyrrhotine with the hexagonal structure in the temperature range of 4–300 K

The magnetic properties of a synthetic sample of Fe$_{0.94}$S pyrrhotine with the hexagonal crystal structure have been studied in the temperature range of 4–300 K. It has been found that the temperature dependence of magnetization has maxima in the temperature ranges of 30–35 and 122–133 K, which are explained by the Verwey-type transitions.