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

Surjeet Singh·Goutam Sheet·Pratap Raychaudhuri·Sudesh Kumar Dhar
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Abstract

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.

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Surjeet Singh, Goutam Sheet, Pratap Raychaudhuri, Sudesh Kumar Dhar. 2005-10-20. CeMnNi4: A soft ferromagnet with a high degree of transport spin polarization. https://doi.org/10.1063/1.2162798

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