It is found that in the range of low-temperature transformation of magnetite (Tt = 100-120 К), the spontaneous magnetization decreases sharply, whereas the susceptiЬility of the paraprocess increases. At the same t ime, the technical magnetization characteristics ( the coercive force and the susceptiЬility measured in а weak field) reach extreme values in this domain. This suggests that the lowtemperature transformation in magnetite is а special kind of magnetic phase transition.
Departmeпt of Geпeral Physics, Faculties of Natural Sciences
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