Ferromagnetism of nuclear matter in the relativistic approach

Authors
Maruyama, T Tatsumi, T
Citation
T. Maruyama et T. Tatsumi, Ferromagnetism of nuclear matter in the relativistic approach, NUCL PHYS A, 693(3-4), 2001, pp. 710-730
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
0375-9474 → ACNP
Volume
693
Issue
3-4
Year of publication
2001
Pages
710 - 730
Database
ISI
SICI code
0375-9474(20011022)693:3-4<710:FONMIT>2.0.ZU;2-J
Abstract
We study the spin-polarization mechanism in the highly dense nuclear matter with the relativistic mean-field approach. In the relativistic Hartree-Foc k framework we find that there are two kinds of spin-spin interaction chann els, which are the axial-vector and tensor exchange ones. If each interacti on is strong and different sign, the system loses the spherical symmetry an d holds the spin polarization in the high-density region. When the axial-ve ctor interaction is negative enough, the system holds ferromagnetism. (C) 2 001 Elsevier Science B.V. All rights reserved.