  We generalize the one magnon solution in R X S^2 to unbounded M magnon and
find the corresponding solitonic string configuration in the string sigma
model. This configuration gives rise to the expected dispersion relation
obtained from the spin chain model in the large 't Hooft coupling limit. After
considering (M,M) multi-magnon or spike on R X S^2 X S^2 as a subspace of
AdS(5)XS^5 or AdS(4)XCP^3, we investigate the dispersion relation and the
finite size effect for (M,M) multi-magnon or spike.
