High spin polarization in epitaxial films of ferrimagnetic Mn3Ga

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

doi:10.1103/PhysRevB.83.020405

High spin polarization in epitaxial films of ferrimagnetic Mn3Ga

Materials Science 2015-05-20 v1 Other Condensed Matter

Authors: 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.

Keywords

ferrimagnetic Mn3Ga epitaxial films spin polarization perpendicular anisotropy spin transfer torque memories

Cite

@article{arxiv.1010.4872,
  title  = {High spin polarization in epitaxial films of ferrimagnetic Mn3Ga},
  author = {Huseyin Kurt and Karsten Rode and Munuswamy Venkatesan and Plamen Stanislavov Stamenov and John Michael David Coey},
  journal= {arXiv preprint arXiv:1010.4872},
  year   = {2015}
}

Comments

13 pages, 3 figures, 1 table

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