  The superconducting and magnetic properties of HoNi2B2C single crystals are
investigated through transport, magnetometry and small-angle neutron scattering
measurements. In the magnetic phases that enter below the superconducting
critical temperature, the small-angle neutron scattering data uncover networks
of magnetic surfaces. These likely originate from uncompensated moments e.g. at
domain walls pinned to crystallographic grain boundaries. The field and
temperature dependent behaviour appears consistent with the metamagnetic
transitions reported in earlier works.
