Energy-dependent crossover from anisotropic to isotropic magnetic dispersion in lightly-doped La1.96Sr0.04CuO4

M. Matsuda, G. E. Granroth, M. Fujita +2

Inelastic neutron scattering experiments have been performed on lightly-doped La${}_{1.96}$Sr${}_{0.04}$CuO${}_4$, which shows diagonal incommensurate spin correlations at low temperat…