Quantum Impurities and the Neutron Resonance Peak in $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_7$: Ni versus Zn

Y. Sidis, P. Bourges, H. F. Fong +9

The influence of magnetic (S=1) and nonmagnetic (S=0) impurities on the spin dynamics of an optimally doped high temperature superconductor is compared in two samples with almost i…