Magnetism and Peierls distortion in Dirac semimetal CaMnBi${}_2$

Aashish Sapkota, Niraj Aryal, Xiao Hu +9

Dirac semimetals of the form $A$Mn$X_2$ ($A=$ alkaline-earth or divalent rare earth; $X=$ Bi, Sb) host conducting square-net Dirac-electron layers of $X$ atoms interleaved with a…