Doping dependance of the spin resonance peak in bilayer high-$T_c$ superconductors

T. Zhou, Z. D. Wang, Jian-Xin Li

Motivated by a recent experiment on the bilayer Y${}_{1-x}$Ca${}_x$Ba${}_2$Cu${}_3$O${}_y$ superconductor and based on a bilayer $t-J$ model, we calculate the spin susceptibility at differ…