$\beta$-CuI: a Dirac semimetal without surface Fermi arcs

Congcong Le, Xianxin Wu, Shengshan Qin +4

Anomalous surface states with Fermi arcs are commonly considered to be a fingerprint of Dirac semimetals (DSMs). In contrast to Weyl semimetals, however, Fermi arcs of DSMs are not…