  The magnetization of neutron star matter in magnetic fields is studied by
employing the FSUGold interaction. It is found that the magnetic
susceptibilities of the charged particles (proton, electron and muon) can be
larger than that of neutron. The effects of the anomalous magnetic moments
(AMM) of each component on the magnetic susceptibility are examined in detail.
It is found that the proton and electron AMM affect their respective magnetic
susceptibility evidently in strong magnetic fields. In addition, they are the
protons instead of the electrons that contribute most significantly to the
magnetization of the neutron star matter in a relative weak magnetic field, and
the induced magnetic field due to the magnetization can be appear to be very
large. Finally, the effect of the density-dependent symmetry energy on the
magnetization is discussed.
