Point Contact Andreev Reflection Measurement of the Spin Polarization of Ferromagnetic Alloy NiFeSb

Chin. Phys. Lett.

2002, Vol. 19

Issue (8): 1181-1183 DOI:

Original Articles

Point Contact Andreev Reflection Measurement of the Spin Polarization of Ferromagnetic Alloy NiFeSb

LI Zhuang-Zhi¹;TAO Hong-Jie¹;WEN Hai-Hu¹;ZHANG Ming²;LIU Zhu-Hong²;CUI Yu-Ting²;WU Guang-Heng²

¹National Laboratory for Superconductivity, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080 ²State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080

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LI Zhuang-Zhi, TAO Hong-Jie, WEN Hai-Hu et al 2002 Chin. Phys. Lett. 19 1181-1183

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Abstract We have studied the temperature-dependent and barrier-strength-dependent Andreev reflection tunneling spectroscopy with point contacts consisted of newly synthesized half-metallic alloy NiFeSb and Nb tip. By fitting the data to the generalized Blonder-Tinkham-Klapwijk theory a spin polarization P = 0.52 was obtained.

Keywords: 74.80.Fp 75.30.-m 75.50.Cc

Published: 01 August 2002

PACS:	74.80.Fp
	75.30.-m	(Intrinsic properties of magnetically ordered materials)
	75.50.Cc	(Other ferromagnetic metals and alloys)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I8/01181

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	LI Zhuang-Zhi
	TAO Hong-Jie
	WEN Hai-Hu
	ZHANG Ming
	LIU Zhu-Hong
	CUI Yu-Ting
	WU Guang-Heng

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