Propagation of Magnetic Disturbances along Wires


IT is well known that the magnetisation of a ferromagnetic material changes in small steps (Barkhausen effect). We have shown1 for a variety of materials that the sizes of these steps, or sudden changes in magnetisation, are independent of the sizes of the crystals of which the material is composed, and correspond to the sudden reversal of the magnetic moment of a volume of material of the order of 10-8 or 10-9 cm.3.


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    Loc cit 1 The oscillograph was recently described by A. M. Curtis, Bell Record, 8, 580; 1930.

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BOZORTH, R., DILLINGER, J. Propagation of Magnetic Disturbances along Wires. Nature 127, 777 (1931).

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