X-ray magnetic circular dichroism evidence of intrinsic $d$-wave altermagnetism in rutile-structure NiF${}_2$

Zezhong Li, Kosuke Sakurai, Yiu-Fung Chiu +13

We present the x-ray magnetic circular dichroism (XMCD) at the Ni $L_{2,3}$-edge as an evidence of the $d$-wave altermagnetism in rutile-structure NiF${}_2$. Sizable XMCD signal is o…