✦ LIBER ✦

A new semi-Heusler ferromagnet NiFeSb: electronic structure, magnetism and transport properties

✍ Scribed by Ming Zhang; Zhuhong Liu; Haining Hu; Yuting Cui; Guodong Liu; Jinglan Chen; Guangheng Wu; Yu Sui; Zhengnan Qian; Zhuangzhi Li; Hongjie Tao; Bairu Zhao; Haihu Wen

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 173 KB
Volume: 128
Category: Article
ISSN: 0038-1098
DOI: 10.1016/s0038-1098(03)00644-6

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✦ Synopsis

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 T 5 behavior at low temperatures. Point contact Andreev reflection measurements of the spin polarization yield moderate polarization of 52%.

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