Superconductivity emerging from the N$\acute{e}$el state in $infinite$-$stage$ single-layer cuprate La${}_2$CuO${}_{4+\delta }$

Yoshihiko Ihara, Ramender Kumar, Kota Miyakoshi +2

In copper oxides (cuprates) with single CuO${}_2$ layer such as La${}_{2-x}$Ba(Sr)${}_x$CuO${}_4$, antiferromagnetism coexists with superconductivity at small doping levels $x$, where chem…