Magneto-optical spectra of an organic antiferromagnet as a candidate for an altermagnet

Satoshi Iguchi, Hiroki Kobayashi, Yuka Ikemoto +5

We have measured the magneto-optical Kerr effect (MOKE) in an orthorhombic organic antiferromagnet $\hat{I}º$-(BEDT-TTF)${}_2$Cu[N(CN)${}_2$]Cl, which is a candidate for an altermagnet. From…