It's not, it's a low temperature antiferromagnet, so there's no net magnetization like in a ferro/ferrimagnet. I think it's a bit deceitful of the headline to

It's not, it's a low temperature antiferromagnet, so there's no net magnetization like in a ferro/ferrimagnet. I think it's a bit deceitful of the headline to call this a new magnet since most laypeople think of a magnet as something that has a net magnetization, whereas this material, while technically a magnet because it has magnetic order, lacks the one defining characteristic in laypeople's minds: it won't stick to other metals via a magnetic field.