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

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.

arXiv commentpdf file with figures Revised Version submitted to APL

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• Spintronics: Fundamentals and applications
• How to calculate the degree of spin polarization in ferromagnets?
• Probing Spin Polarization with Andreev Reflection: A Theoretical Basis
• The origin of high transport spin polarization in La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$: direct evidence for minority spin states
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Cited by in corpus (7)

• Temperature dependence of transport spin polarization in NdNi5 measured using Point Contact Andreev reflection
• Calculations of spin induced transport in ferromagnets
• Influence of anti-site disorder and electron-electron correlations on the electronic structure of CeMnNi${}_4$
• Ab-inito study on different phases of ferromagnetic CeMnNi4
• Study of CeNi4Mn by neutron diffraction
• High spin-polarization in the low Curie temperature complex itinerant ferromagnet EuTi${}_{1-x}$Nb${}_x$O${}_3$
• Spin-glass instability of short-range spherical ferromagnet