CeMnNi4: A soft ferromagnet with a high degree of transport spin polarization

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In this letter we introduce a new soft ferromagnetic compound, i.e. CeMnNi4, which exhibits a large moment (~4.95mu_B/Mn) and high degree of spin polarization. The system has a ferromagnetic transition temperature of 148K. Isothermal magnetization measurements at 5K reveal that the material is a soft ferromagnet with a magnetization saturating at about 500Oe and a coercive field of < 5 Oe. We determine the transport spin polarization of this material from Point Contact Andreev Reflection measurements to be 66% thereby making this material potentially important for spintronic applications.
pdf file with figures Revised Version submitted to APL

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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/101764

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0509101
 http://arxiv.org/abs/cond-mat/0509101
 Appl. Phys. Lett. 88, 022506 (2006)
 doi:10.1063/1.2162798

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arXiv