CMI scientists at Oak Ridge National Laboratory conducted this research.
Achievement
First principles calculations find large uniaxial magnetic anisotropy with magnetizations exceeding 1 T, for alloys Ce2(Fe1-xCox)15Zr for 0.4 < x <1. Preliminary experiments confirm these predictions.
Significance and impact
Alloy may be promising magnet with BHmax between 20 and 40 MG-Oe, relatively low Cobalt content (35 wt.% for x=0.5) and no critical RE. May exceed performance of Nd2Fe14B at elevated temperature.
Details and next steps
DFT Calculations within GGA+U and virtual crystal approximations. Synthesis efforts underway. Invention disclosure filed.
