Large room temperature magnetocaloric effect in Ni50Mn34(Co,Cu)In15

摘要：

　　Effect of Co or Cu slightly introduced in Ni5oMn35In15 on martensitic transformation and magnetocaloric effect was investigated.The small doping of Co can modify exchange interaction between Mn atoms, resulting in the ferromagnetic ordering of the parent phase and a large magnetization difference △M across the martensitic transformation.For Cu-doped sample, a large (e)M/(e)T was obtained, and gives rise to a large magnetic entropy change of 58.4 J/kg K for 5 T near room temperature accompanying with smaller hysteresis losses.The study on the doping system may have significant impact on realization of room-temperature magnetic refrigeration.

关键词： Heusler alloy Martensitic transformation Magnetocaloric effect

作者: Zhe Li Chao Jing Junjun Wu Lingxian Wu JianYin Kun Xu Xiaofeng Zhou

作者单位: Key Laboratory for Advanced Functional and Low Dimensional Materials of Yunnan High Education Instit Department of Physics, Shanghai University, Shanghai 200444, China

会议类型: 国际会议

会议名称: 2013International Conference on Energy Engineering and Environmental Engineering(2013年能源工程与环境工程国际会议)(ICEEEE2013)

会议地点: 杭州

会议语种:英文

页码: 996-1001

在线出版日期: 2013-01-18（万方平台首次上网日期，不代表论文的发表时间）