IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Neutron matter instabilities induced by strong magnetic fields
Autor/es:
AGUIRRE, R; BAUER, E
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 721 p. 136 - 140
ISSN:
0370-2693
Resumen:
We study some properties of spin--polarized neutron matter in thepresence of a strong magnetic field at finite temperature. Usingthe Skyrme model together with the Hartree-Fock approximation weobtain an energy density functional that is employed to extractthe spin polarization, the effective mass and the magnetic freeenergy of the system. In order to find the equilibrium state, wehave analyzed different global spin configurations over a widerange of matter density ($0 < n/n_0 leq 3$), magnetic fieldintensity ($10^{14} G leq B < 10^{19} G$) and temperature ($Tleq 80$~MeV). We have found that under certain conditions, achange in the equilibrium configuration takes place leading toinstabilities of the system. The points of instability can berepresented as a surface in the ($n$,$T$,$B$)--phase space. Wehave also studied the change in the internal energy associatedwith this change in the magnetization.