摘要
用X—ray衍射和磁性测量的方法对所制备的La0.8Ce0.2Fe11.1-xCo0.8Si1．1Bx（x=0，0．3，0．6）的结构和磁性特征进行分析，发现B元素的添加不仅有利于该化合物形成单相NaZn13型晶体结构，且随B含量的增加样品居里温度由x=0．3的278K增加到x=0．6的286K，同时最大磁熵变｜△SM（T）｜也随之增大，在0～1．5T的磁场下由x=0．3的6．364J／kg·K增加到x=0．6的10．23J／kg·K．
The structural and magnetic properties of La0.8Ce0.2Fe11.1-xCo0.8Si1. 1Bx（x=0,0. 3, 0. 6） compound are investigated by means of X-ray diffraction and magnetization measurements. The results demonstrate that the addition of element B could help the compound to be crystallized in the cubic NaZn13-type structure. The Curie temperature Tc increases from 278 K for x=0. 3 to 286 K for x=0.6 with increasing B content. Simultaneity,the great magnetic entropy change ｜△SM（T）｜ also increases from 6. 364 J/kg · K for x=0. 3 to 10. 23 J/kg · K for x= 0. 6 under a field of 0-1.5 T with increasing B content.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第5期526-530,共5页
Journal of Inner Mongolia University：Natural Science Edition
基金
国家自然科学基金资助项目(50164003)
