Pressure-induced Topological Node-Line Semimetals in Alkaline-Earth Hexaborides XB6 (X=Ca, Sr, Ba)

L. -Y. Gan, R. Wang, Y. J. Jin +5

Based on first-principles calculations, we reported that external pressure can induce topological phase transition in alkaline-earth hexaborides, XB6 (X=Ca, Sr, Ba). It was reveale…