Ferromagnetism of nuclear matter in the relativistic approach

✍ Scribed by Tomoyuki Maruyama; Toshitaka Tatsumi

• Book ID: 104334608
• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 225 KB
• Volume: 693
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(01)00811-9

✦ Synopsis

We study the spin-polarization mechanism in the highly dense nuclear matter with the relativistic mean-field approach. In the relativistic Hartree-Fock framework we find that there are two kinds of spin-spin interaction channels, which are the axial-vector and tensor exchange ones. If each interaction is strong and different sign, the system loses the spherical symmetry and holds the spin polarization in the high-density region. When the axial-vector interaction is negative enough, the system holds ferromagnetism.