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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Paleomagnetic studies have revealed that natural ferrimagnetics, which are constituents of igneous
rocks, can be magnetized antiparallel to the magnetizing field. This phenomenon is called self-reversal of mag-
netization. The question of the actual existence of inversions of the geomagnetic field is still under investigation.
This paper considers the physics of the anomalous behavior of natural ferrimagnetic thermomagnetization
(TM). The existence of thermomagnetization arising in natural ferrites against the direction of a magnetizing
field is experimentally confirmed. It is shown that even after the demagnetization of a ferrimagnetic by alter-
nating magnetic field a significant increase in residual magnetization can occur when it is heated in the absence
of a magnetic field.