The magnetocaloric effect (MCE) is studied in CeFe 2 and Ru-doped CeFe 2 alloys with dc magnetization measurements. The pure CeFe 2 compound shows a distinct peak in MCE around the paramagnetic to ferromagnetic transition. In Ru-doped CeFe 2 alloys there is a further transition from the ferromagnetic to antiferromagnetic state at low temperatures. This latter magnetic transition gives rise to a relatively large inverse MCE. A comparative study of the MCE associated with two different magnetic transitions is made and the possible role of a structural transition in the inverse MCE is discussed.
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Chattopadhyay et al. (2006) studied this question.
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