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Andersson G, Burkert T, Warnicke P, et al. Perpendicular magnetocrystalline anisotropy in tetragonally distorted Fe-Co alloys. Phys Rev Lett. 2006;96(3):037205doi: 10.1103/PhysRevLett.96.037205.
Andersson, G., Burkert, T., Warnicke, P., Björck, M., Sanyal, B., Chacon, C., Zlotea, C., Nordström, L., Nordblad, P., & Eriksson, O. (2006). Perpendicular magnetocrystalline anisotropy in tetragonally distorted Fe-Co alloys. Physical review letters, 96(3), 037205. https://doi.org/10.1103/PhysRevLett.96.037205
Andersson, Gabriella, et al. "Perpendicular magnetocrystalline anisotropy in tetragonally distorted Fe-Co alloys." Physical review letters vol. 96,3 (2006): 037205. doi: https://doi.org/10.1103/PhysRevLett.96.037205
Andersson G, Burkert T, Warnicke P, Björck M, Sanyal B, Chacon C, Zlotea C, Nordström L, Nordblad P, Eriksson O. Perpendicular magnetocrystalline anisotropy in tetragonally distorted Fe-Co alloys. Phys Rev Lett. 2006 Jan 27;96(3):037205. doi: 10.1103/PhysRevLett.96.037205. Epub 2006 Jan 27. PMID: 16486763.
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Phys Rev Lett. 2006 Jan 27;96(3):037205. doi: 10.1103/PhysRevLett.96.037205. Epub 2006 Jan 27.

Perpendicular magnetocrystalline anisotropy in tetragonally distorted Fe-Co alloys.

Physical review letters

Gabriella Andersson, Till Burkert, Peter Warnicke, Matts Björck, Biplab Sanyal, Cyril Chacon, Claudia Zlotea, Lars Nordström, Per Nordblad, Olle Eriksson

Affiliations

  1. Department of Physics, Uppsala Universitet, Box 530, 751 21 Uppsala, Sweden. [email protected]

PMID: 16486763 DOI: 10.1103/PhysRevLett.96.037205

Abstract

We report on the experimental realization of tetragonal Fe-Co alloys as a constituent of Fe0.36Co0.64/Pt superlattices with huge perpendicular magnetocrystalline anisotropy energy, reaching 210 microeV/atom, and a saturation magnetization of 2.5 microB/atom at 40 K, in qualitative agreement with theoretical predictions. At room temperature the corresponding values and are achieved. This suggests that Fe-Co alloys with carefully chosen combinations of composition and distortion are good candidates for high-density perpendicular storage materials.

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