The temperature dependence of hyperfine fields in transition metals and alloys
- 1 June 1976
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 6 (6) , L185-L189
- https://doi.org/10.1088/0305-4608/6/6/004
Abstract
A theory is given of the temperature dependence of the hyperfine field H(T) assuming that spin wave excitations are dominant. It is shown that at constant volume the coefficient of T3/2 in H(T)/H(0) is identical to that in the reduced magnetization so that the hyperfine coupling constant takes the form A=1-cT5/2+O(T7/2), in agreement with Riedi's NMR work on iron (1973). A similar result holds for alloys and is consistent with measurements on FeAl alloys.Keywords
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