Equation of state and magnetic susceptibility of spin polarized isospin asymmetric nuclear matter
arXiv:nucl-th/0203061 · doi:10.1103/PhysRevC.66.045801
Abstract
Properties of spin polarized isospin asymmetric nuclear matter are studied within the framework of the Brueckner--Hartree--Fock formalism. The single-particle potentials of neutrons and protons with spin up and down are determined for several values of the neutron and proton spin polarizations and the asymmetry parameter. It is found an almost linear and symmetric variation of the single-particle potentials as increasing these parameters. An analytic parametrization of the total energy per particle as a function of the asymmetry and spin polarizations is constructed. This parametrization is employed to compute the magnetic susceptibility of nuclear matter for several values of the asymmetry from neutron to symmetric matter. The results show no indication of a ferromagnetic transition at any density for any asymmetry of nuclear matter.
23 pages, 8 figures, 2 tables (submitted to Phys. Rev. C)
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