Abstract
In two recent papers1 I have shown that there are two effects of a magnetic field on the electrical resistance of ferromagnetic wires. At temperatures appreciably below the Curie-point (C-P.) there is an increase + ΔR of the resistance by magnetisation which attains a saturation value exactly at the saturation of the magnetisation. The relation between the magnetisation I and the change of the resistance is + ΔR = c(I2 - I20), where I0 is a critical value of the magnetisation process; for example, in crystals the component of the spontaneous magnetisation in the direction of the field. So far as the limit I0 of the magnetisation, there is practically no change of resistance. The greater part of the resistance increase takes place in the region approaching saturation.
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References
W. Gerlach u. K. Schneiderhan, Ann. d. Phys., 6 (V), 772; 1930. W. Gerlach, Ann. d. Phys., 8 (V), 649; 1931.
H. H. Potter, NATURE, April 11, 1931, p. 555.
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GERLACH, W., ENGLERT, E. A New Relation between Electrical Resistance and Energy of Magnetisation. Nature 128, 151–152 (1931). https://doi.org/10.1038/128151a0
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DOI: https://doi.org/10.1038/128151a0
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