Magnetization curve of gadolinium below 50 °K
W N R Stevens; W N R Stevens; Physics Department, University of Southampton
Журнал:
Journal of Physics C: Solid State Physics
Дата:
1969-02-01
Аннотация:
The change of magnetization with temperature of gadolinium in a field of 20 kOe has been investigated up to 50 °K using a sensitive technique. A departure previously found from the T<sup>3/2</sup> variation which is followed at higher temperatures has been confirmed. This can be understood in terms of the disappearance of higher-order effects which contribute to the higher-temperature T<sup>3/2</sup> region, and the effect of the applied field. At the lower temperatures the data come close to following a field-modified spin-wave T<sup>3/2</sup> law. A comparison with the measured exchange interactions of terbium has also been made.
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