DETERMINATION OF LONG RANGE ORDER IN Ni3Fe USING THE MOSSBAUER EFFECT TECHNIQUE
- 1 December 1974
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 35 (C6) , C6-465
- https://doi.org/10.1051/jphyscol:1974696
Abstract
We have determined the long range order parameter S from Mössbauer spectra in a series of Ni3Fe foils with increasing long range order. The shape of the outer lines plays an essential role in Our analysis together with the assumption that the hypefine field H at a particular iron nucleus is linearly related to the numbers of iron atoms in the first and second neighbouring shell, n1 and n2 : H = H(0,6) + n1 ƊH1 + (n2 - 6) ƊH2. Because the probability for the occurrence of a particular combination (n1, n2) depends on S, four parameters remain to be determined for each spectrum : S, H(0,6), ƊH1, ƊH2. A consistent set of these parameters was obtained for all spectra, with S ranging from 0.65 till 0.90, H(0,6) = 276.6 kOe, ƊHl = + 11.1 kOe/Fe at and ƊH2 = + 2.7 kOe/Fe atKeywords
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