Investigation of the field-induced ferromagnetic phase transition in   spin polarized neutron matter: a lowest order constrained variational   approach
  In this paper, the lowest order constrained variational (LOCV) method has been used to investigate the magnetic properties of spin polarized neutron matter in the presence of strong magnetic field at zero temperature employing $AV_{18}$ potential. Our results indicate that a ferromagnetic phase transition is induced by a strong magnetic field with strength greater than $10^{18}\ G$, leading to a partial spin polarization of the neutron matter. It is also shown that the equation of state of neutron matter in the presence of magnetic field is stiffer than the case in absence of magnetic field. 
G.H. Bordbar, Z. Rezaei and Afshin Montakhab
nucl-th astro-ph.SR