Spin dynamics in the pressure-induced two-leg ladder cuprate superconductor Sr${}_{14-x}$Ca${}_x$Cu${}_{24}$O${}_{41}$

Jihong Qin, Yu Lan, Shiping Feng

Within the two-leg $t$-J ladder, the spin dynamics of the pressure-induced two-leg ladder cuprate superconductor Sr${}_{14-x}$Ca${}_x$Cu${}_{24}$O${}_{41}$ is studied based on the kineti…