Magnetic resonance peak and nonmagnetic impurities

Y. Sidis, P. Bourges, B. Keimer +6

Nonmagnetic Zn impurities are known to strongly suppress superconductivity. We review their effects on the spin excitation spectrum in $\mathrm{YB}{\mathrm{a}}_2\mathrm{C}{\mathrm{u}}_3{\mathrm{O}}_7$, as investigated by inel…