Observation of Weyl nodes and Fermi arcs in tantalum phosphide
Observation of Weyl nodes and Fermi arcs in tantalum phosphide
Abstract A Weyl semimetal possesses spin-polarized band-crossings, called Weyl nodes, connected by topological surface arcs. The low-energy excitations near the crossing points behave the same as massless Weyl fermions, leading to exotic properties like chiral anomaly. To have the transport properties dominated by Weyl fermions, Weyl nodes need to locate …