Ultraquantum magnetoresistance in Kramers Weyl semimetal candidate $\beta$-Ag2Se

Cheng-Long Zhang, Frank Schindler, Haiwen Liu +14

The topological semimetal $\beta$-Ag2Se features a Kramers Weyl node at the origin in momentum space and a quadruplet of spinless Weyl nodes, which are annihilated by spin-orbit coupli…