Orbital-Selective Coexistence of Interlayer Spin-Singlet Formation and SDW Order with Anomalous Spin Reconfiguration in Bilayer Nickelate La${}_3$Ni${}_2$O${}_7$ Revealed by ${}^{17}$O-NMR

H. Lee, M. Yashima, M. Kakoi +7

The spin structure of the spin density wave (SDW) order in the bilayer nickelate La${}_3$Ni${}_2$O${}_7$ has been investigated using site-selective ${}^{17}$O-NMR measurements on the inner…