Potential 20+ MGOe Ce-based Co-lean magnet

Intrinsic properties of the 1:7-type Zr-doped Co-lean Ce-magnet in comparison with similar 2:17- and 1:5-matrials. The 1:7-type material is the middle point that allows potential energy products of Ce-magnets > 20 MGOe, by coupling high Ms of 2:17 with high Ha of 1:5.
Intrinsic properties of the 1:7-type Zr-doped  Co-lean Ce-magnet in comparison with similar 2:17- and 1:5-matrials. The 1:7-type material is the middle point that allows potential energy products  of Ce-magnets > 20 MGOe, by coupling high Ms of 2:17 with high Ha of 1:5.

CMI researchers at Ames Laboratory conducted the research for this highlight

Achievement
First successful high-temperature solution growth of single crystalline 1:7-type Zr-doped Ce/Co/Fe/Cu material with Co < 48 wt.% showing high intrinsic magnetic characteristics

Significance and impact
First Ce-based magnet material which incorporates the best magnetic properties from the limiting 2:17 and 1:5 Ce-based materials, combining high magnetizations (Ms = 9.2 – 9.6 kG) with high magneto-crystalline anisotropy (Ha = 48 – 60 kOe).

Details and next steps
Future steps will include characterization of bulk magnets with detailed evaluation of its magnetic, structural and thermal characteristics.