  Inelastic neutron scattering has been used to measure the low-energy spin
excitations in the ordered charge-stripe phase of La(2)NiO(4+d) with d=0.133.
Spin-wave-like excitations disperse away from the incommensurate magnetic
superlattice points with a velocity ~60% of that in the d=0 compound.
Incommensurate inelastic peaks remain well-resolved up to at least twice the
magnetic ordering temperature. Paramagnetic scattering from a d=0.105 sample,
which has a N\'eel-ordered ground state, shows anomalies suggestive of
incipient stripe correlations. Similarities between these results and
measurements on superconducting cuprates are discussed.
