Spin-orbit coupling induced Mott transition in Ca${}_{2-x}$Sr${}_x$RuO${}_4$ (0<x<0.2)

Guo-Qiang Liu

We propose a new mechanism for the paramagnetic metal-insulator transition in the layered perovskite Ca${}_{2-x}$Sr${}_x$RuO${}_4$ (0<x<0.2). The LDA+U approach including spin-orbit…