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Abstract
The magnetic properties and magnetic entropy change near Curie temperature TC have been investigated for the Ce2Fe16Al compound with a rhombohedral Th2Zn17type structure. The magnetic behaviour is found to obey the secondorder phase transition laws near TC which is 2758K. The critical indices β＝044±001， γ＝130±001， δ＝383±001 are obtained by calculating the field and temperaturedependences of magnetization. The critical indices satisfy the scaling law γ=β(δ-1), but these values deviate the threedimensional Heisenberg model. The maximum entropy change at TC under a field of 2T is 195J/kgK.

Keywords:
Ce2Fe16Al compound/

critical indices/

magnetic entropy change
Authors and contacts
Shen Jun²,

Li Yang-Xian¹,

Hu Feng-Xia³,

Wang Guang-Jun³,

Zhang Shao-Ying³
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Vol. 52, Issue 5 - 2003-03-05

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