Gast ::
| Hauptseite > Publikationsdatenbank > Spin Spiral State at a Ferromagnetic Gd Vacuum Interface |
| Hauptseite > Publikationsdatenbank > Spin Spiral State at a Ferromagnetic Gd Vacuum Interface |
| Dataset | FZJ-2024-06324 |
; ; ; ; ; ; ; ; ; ;
2024
University of Würzburg
This record in other databases:
Please use a persistent id in citations: doi:10.58160/EXFEGUR3WV777F1K
Abstract: Centrosymmetric bulk magnets made of layered Gd intermetallics had been discovered recently to exhibit helical spin spirals with a wavelength of ≈2 nm that transform into skyrmion lattices at certain magnetic fields. Here we report on the observation of a spin spiral state at the Gd(0001) surface. Spinpolarized scanning tunneling microscopy images show striped regions with a periodicity of about 2 nm. These stripes rearrange upon application of an external magnetic field, thereby unambiguously confirming their magnetic origin. Density functional theory calculations explain that competing exchange interactions in the surface layer of Gd(0001) together with a magnetovolume fine-tuning of the exchange interaction to the next Gd layer favor a chiral 2 nm conical spin spiral at the surface, arising as a general behavior of the Gd monolayer.
Keyword(s): Physics ; Spin-polarized scanning tunneling microscopy ; Rare-earth magnetic materials ; Spin Reorientation Transition ; Density functional theory ; Magnetic interactions ; Exchange interaction ; Ferromagnetism
|
The record appears in these collections: |