The instability of ferromagnetism in CeFe2: effects of Al substitution
- 1 September 1987
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 17 (9) , L215-L220
- https://doi.org/10.1088/0305-4608/17/9/006
Abstract
The rapid loss of straightforward ferromagnetism for small substitutions of Al on Fe sites in CeFe2 has been studied by AC susceptibility measurements with and without small superposed steady fields. A fall in magnetic response at low temperatures like that of re-entrant spin glasses is already present at 1% substitution, by 3.5% the ferromagnetic divergence is greatly reduced and by 8% it has disappeared to leave only spin-glass behaviour. Possible origins of this behaviour, which is related to that of alloys with other elements, and the possible relevance of recent work on other RFe2 phases are discussed.Keywords
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