DIPC Community Seminars: Understanding magnetic anisotropy in spin orientation and spin-spin interactions
DIPC Seminars
- Speaker
-
Maria Blanco-Rey, Universidad del Pais Vasco UPV/EHU
- When
-
2023/02/16
13:00 - Place
- Hybrid Seminar: Donostia International Physics Center
- Add to calendar
- iCal
**DIPC Community Seminars**
In this talk I will review the role of magnetocrystalline anisotropy (MCA) in
the orientation of spins in lowdimensional systems. The MCS is a consequence
of spinorbit interaction (SOI), which imposes a preferred alignment of the
magnetic moments with respect to the spatial degrees of freedom in a given
system. In the literature the frameworks of "single-ion anisotropy" (a
localized effect) and "band anisotropy" (an extended one) are commonly used to
interpret data. If we track the SOI down to the electronic structure scale and
apply perturbation theory, we are able to unify those frameworks and
understand other side effects. For example, how SOI allows for anisotropy in
the interactions (exchange) between magnetic moments, which may be chiral
under suitable symmetry conditions. I will illustrate these concepts with
theoretical and experimental results on low-dimensional systems based in 3d
and 4f atomic orbital magnetism.
Zoom:[ https://dipc-org.zoom.us/j/91666783185]( https://dipc-
org.zoom.us/j/91666783185)