Collapse of the Mott gap and emergence of a nodal liquid in lightly doped Sr${}_2$IrO${}_4$

A. de la Torre, S. McKeown Walker, F. Y. Bruno +13

Superconductivity in underdoped cuprates emerges from an unusual electronic state characterised by nodal quasiparticles and an antinodal pseudogap. The relation between this state…