Room temperature magnetocaloric effect of the Cox(MnSb)1-x compounds

摘要：

　　The room-temperature magnetocaloric effect (MCE) of Cox(MnSb)1-x (x=0.07,0.15,0.24)alloys has been investigated.It is revealed that the Curie temperature Tc and the magnetic entropy change ΔSM are sensitive to the Co content x.When x=0.15,the MCE of Co0.15(MnSb)0.85 alloy is optimal with ΔSM=1.8 J/kg.K at 324 K under an applied magnetic field of 3 T.A second-order phase transformation occurs around Tc,and the magnetic hysteresis loss thermal lag is negligible.These features demonstrate that Co0.15(MnSb)0.85 alloy is a promising room-temperature magnetocaloric materials.

关键词： Magnetocaloric effect Magnetic entropy change Second-order phase transformation

作者: Jianhua Lin Shandong Li Lili Wang Jie Qiu Zhiyi Cai Xiaoqin Cao Honglei Du Qian Xue Shiming Xie

作者单位: Department of physics, Fujian Normal University, Fuzhou 350007, China Department of physics, Fujian Normal University, Fuzhou 350007, China;College of Physics Science, Qi College of Physics Science, Qingdao University, Qingdao 266071, China

会议类型: 国际会议

会议名称: 2nd International Conference on Advanced Materials and Engineering Materials(第二届先进材料与工程材料国际会议)(ICAMEM2012)

会议地点: 北京

会议语种:英文

页码: 56-59

在线出版日期: 2012-12-16（万方平台首次上网日期，不代表论文的发表时间）