Spin-orbit coupling induced magnetism in the $d$-density wave phase of La${}_{2-x}$Ba${}_x$CuO${}_4$ superconductors

Congjun Wu, Jan Zaanen, Shou-Cheng Zhang

We study the effects of spin-orbit coupling in the $d$-density wave (DDW) phase. In the low-temperature orthorhombic phase of La${}_{2-x}$Ba${}_x$CuO${}_4$, we find that spin-orbit coupl…