Ultrafast Carrier Relaxation Dynamics in a Nodal-Line Semimetal PtSn${}_4$

Tianyun Lin, Yongkang Ju, Haoyuan Zhong +7

Topological Dirac nodal-line semimetals host topologically nontrivial electronic structure with nodal-line crossings around the Fermi level, which could affect the photocarrier dyn…