  ^139La nuclear magnetic resonance studies reveal markedly different magnetic
properties of the two sites created by the charged domain wall formation in
La_(5/3)Sr_(1/3)NiO_4. NMR is slow compared to neutron scattering; we observe a
30 K suppression in magnetic ordering temperature indicating glassy behavior.
Applied magnetic field reorients the in-plane ordered moments with respect to
the lattice, but the relative orientation of the spins amongst themselves is
stiff and broadly distributed.
