| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seaborg Institutes: Emerging Topics in Actinide Materials and Science
|
| Presentation Title |
Enhanced Spin Orbit Coupling in the Actinides |
| Author(s) |
Peter S. Riseborough |
| On-Site Speaker (Planned) |
Peter S. Riseborough |
| Abstract Scope |
A number of actinide intermetallic compounds, such as the uranium monochalcogenides, show giant magnetic anisotropies. We show that giant anisotropies result from the Coulomb enhancement of the spin-orbit coupling, and that the enhancement is largest for highly hybridized systems that are in the close proximity to a quantum critical point. The enhancement is attributed to the constructive interference of atomic Coulomb and spin-orbit scattering processes of electrons in hybridized bands. The calculational method consists of a variational method in where off-diagonal atomic correlations induced by the spin-orbit coupling are enhanced by the off-diagonal elements of the Coulomb interaction with the same symmetry. The method is applied to the calculation of the magnetic anisotropy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Electronic Materials, Computational Materials Science & Engineering |