Samarium Cobalt-based magnets are a vitally important industrial magnet, and significant effort has been devoted to trying to improve the performance and reduce the cost through the addition of Fe. Unfortunately, this comes at the expense of phase stability. Here, Wang et al show through careful choice of composition, a Samarium Cobalt permanent magnet with an ultrahigh coercivity of 6.71 MA/m.
- Shu Wang
- Ji-Bing Sun
- Jian Liu