Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet

Abstract

Identifying a cuprate look-alike Superconductivity in cuprate compounds remains poorly understood. Recreating its features in an unrelated material may provide insight. Kim et al. used a spectroscopic technique to study the electronic states of the material Sr 2 IrO 4 at relatively high temperatures. They observed phenomenology similar to that of cuprates as they varied the surface carrier concentration. The study highlights the essential properties a material needs in order to exhibit cuprate-like features in the normal (nonsuperconducting) state. Science , this issue p. 187