Exotic Node Line in ternary MgSrSi-type crystals

Jinling Lian, Lixian Yu, Qi-Feng Liang +3

Node line (NL) band-touchings protected by mirror symmetry (named as $m$-NL), the product of inversion and time reversal symmetry $\mathcal{S}=\mathcal{P}\mathcal{T}$ ($s$-NL), or nonsymmorphic symmet…