Author/Authors :
Zhang، نويسنده , , Ming and Liu، نويسنده , , Zhuhong and Hu، نويسنده , , Haining and Cui، نويسنده , , Yuting and Liu، نويسنده , , Guodong and Chen، نويسنده , , Jinglan and Wu، نويسنده , , Guangheng and Sui، نويسنده , , Yu-lin Qian، نويسنده , , Zhengnan and Li، نويسنده , , Zhuangzhi and Tao، نويسنده , , Hongjie and Zhao، نويسنده , , Bairu and Wen، نويسنده , , Haihu، نويسنده ,
Abstract :
We report on structural, magnetic, transport, and spin polarization measurements of a new semi-Heusler alloy NiFeSb, which was synthesized successfully by means of electron melt-spinning technique although its ferromagnetic state and crystal structure was predicted to be unstable by the band calculation. The temperature-dependent measurement of magnetizations can both be interpreted well by the spin-wave theory. The electrical resistivity follows a T5 behavior at low temperatures. Point contact Andreev reflection measurements of the spin polarization yield moderate polarization of 52%.
Keywords :
D. Magnetism , A. Heusler alloy , D. Electronic structure , D. Transport properties
