Finite-temperature calculations for spin-polarized asymmetric nuclear matter with the lowest order constrained variational method

摘要

The lowest order constrained variational technique has been used to investigate some of the thermodynamicnproperties of spin-polarized hot asymmetric nuclear matter, such as the free energy, symmetry energy,nsusceptibility, and equation of state.We have shown that the symmetry energy of the nuclear matter is substantiallynsensitive to the value of spin polarization. Our calculations show that the equation of state of the polarizednhot asymmetric nuclear matter is stiffer for higher values of the polarization as well as the isospin asymmetrynparameter. Our results for the free energy and susceptibility show that spontaneous ferromagnetic phase transitionncannot occur for hot asymmetric matter.