|Publication Type||Journal Article|
|Year of Publication||2016|
|Authors||Balasubramanian, B, Das, B, Nguyen, MC, Xu, XS, Zhang, J, Zhang, XZ, Liu, YH, Huq, A, Valloppilly, SR, Jin, YL, Wang, CZ, Ho, KM, Sellmyer, DJ|
|Type of Article||Article|
|Keywords||augmented-wave method, Materials Science, permanent-magnets, physics, Technology - Other Topics|
We report the fabrication of a set of new rare-earth-free magnetic compounds, which form the Fe3Co3Ti2-type hexagonal structure with P-6m2 symmetry. Neutron powder diffraction shows a significant Fe/Co anti-site mixing in the Fe3Co3Ti2 structure, which has a strong effect on the magnetocrystalline anisotropy as revealed by first-principle calculations. Increasing substitution of Fe atoms for Coin the Fe3Co3Ti2 lattice leads to the formation of Fe4Co2Ti2, Fe5CoTi, and Fe6Ti2 with significantly improved permanent-magnet properties. A high magnetic anisotropy (13.0 Mergs/cm(3)) and saturation magnetic polarization (11.4 kG) are achieved at 10 K by altering the atomic arrangements and decreasing Fe/Co occupancy disorder. (C) 2016 Author(s).
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|Alternate Journal||APL Mater.|