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Spinodal instabilities and the distillation effect in nuclear matter under strong magnetic fields
Authors: A. Rabhi, C. Providência, and J. Da Providência
Ref.: Phys. Rev. C 79, 015804-1-015804-11 (2009)
Abstract: We study the effect of strong magnetic fields, of the order of 10^18-10^19 G, on the instability region of nuclear matter at subsaturation densities. Relativistic nuclear models both with constant couplings and with density-dependent parameters are considered. It is shown that a strong magnetic field can have large effects on the instability regions giving rise to bands of instability and wider unstable regions. As a consequence, we predict larger transition densities at the inner edge of the crust of compact stars with strong magnetic fields. The direction of instability gives rise to a very strong distillation effect if the last Landau level is only partially filled. However, for almost completed Landau levels, an antidistillation effect may occur.
