Figure 4
From: Cr\(_2\)AlN and the search for the highest temperature superconductor in the M\(_2\)AX family

(a) The hexagonal crystal structure of Cr\(_2\)AlN, where blocks of Cr–N (formed by edge-shared Cr\(_6\)N octahedra) are sandwiched with Al atomic sheets. (b) The hexagonal Brillouin zone for Cr\(_2\)AlN.