Renormalization of Commensurate Magnetic Peak in Ni-doped La${}_{1.85}$Sr${}_{0.15}$CuO${}_4$

M. Matsuura, M. Kofu, H. Kimura +1

We have studied the magnetic excitations in impurity doped La${}_{1.85}$Sr${}_{0.15}$Cu${}_{1-y}$A${}_y$O${}_4$ (A=Ni or Zn) by neutron scattering. The dispersion for Zn:$y=0.017$ is sim…