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arXiv · 1010.4872

High spin polarization in epitaxial films of ferrimagnetic Mn3Ga

Huseyin Kurt·Karsten Rode·Munuswamy Venkatesan·Plamen Stanislavov Stamenov·John Michael David Coey
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Abstract

Ferrimagnetic Mn3Ga exhibits a unique combination of low saturation magnetization (Ms = 0.11 MA m-1) and high perpendicular anisotropy with a uniaxial anisotropy constant of Ku = 0.89 MJ m-3. Epitaxial c-axis films exhibit spin polarization as high as 58%, measured using point contact Andreev reflection. These epitaxial films will be able to support thermally stable sub-10 nm bits for spin transfer torque memories.

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Huseyin Kurt, Karsten Rode, Munuswamy Venkatesan, Plamen Stanislavov Stamenov, John Michael David Coey. 2010-10-23. High spin polarization in epitaxial films of ferrimagnetic Mn3Ga. https://doi.org/10.1103/physrevb.83.020405

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