Is a Field-Induced Ferromagnetic Phase Transition in the Magnetar Core Actually Possible?

Abstract

Spin polarized states in dense neutron matter with BSk20 Skyrme force are considered in magnetic fields up to $10^{20}$ G. It is shown that the appearance of the longitudinal instability in a strong magnetic field prevents the formation of a fully spin polarized state in neutron matter, and only the states with moderate spin polarization can be developed.

Report at 3rd International Conference on Quantum Electrodynamics and Statistical Physics (QEDSP2011) commemorating the centennial of Prof. A. I. Akhiezer. August 29 - September 02, 2011, Kharkov, Ukraine

References in corpus (6)

• Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XII: Stiffness and stability of neutron-star matter
• Equation of State of a Dense and Magnetized Fermion System
• Spin ordered phase transitions in isospin asymmetric nuclear matter
• Investigation of the field-induced ferromagnetic phase transition in spin polarized neutron matter: a lowest order constrained variational approach
• Unusual temperature behavior of entropy of antiferromagnetic spin state in nuclear matter with effective finite range interaction
• Phase transition to the state with nonzero average helicity in dense neutron matter