Using the paramegentic salt restricted to the Curie law as the working substance,a general model of magnetic Brayton refrigeration cycle is established.

• 基于统计力学的性质推导出了顺磁系统的热力学关系,并构建了以满足居里定律的顺磁材料为工作物质的一般磁布雷顿制冷循环模型。