| Zugriffsnummer | 17680 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Absence of spin-flip transition at the Cr(001) surface: a combined spin-polarized scanning tunneling microscopy and neutron scattering study |
| Autor(in); Institution |
Hänke, T.; University of Hamburg, Institute of Applied Physics and Microstructure Research Center, Hamburg, GERMANY
Krause, S.; University of Hamburg, Institute of Applied Physics and Microstructure Research Center, Hamburg, GERMANY
Berbil-Lautista, L.; University of Hamburg, Institute of Applied Physics and Microstructure Research Center, Hamburg, GERMANY
Bode, M.; University of Hamburg, Institute of Applied Physics and Microstructure Research Center, Hamburg, GERMANY
Wiesendanger, R.; University of Hamburg, Institute of Applied Physics and Microstructure Research Center, Hamburg, GERMANY
Wagner, Volker; 6.5, Neutronenstrahlung, PTB-Braunschweig
Lott, D.; GKSS-Forschungszentrum, Institut für Werkstoffforschung, Geesthacht, GERMANY
Schreyer, A.; GKSS-Forschungszentrum, Institut für Werkstoffforschung, Geesthacht, GERMANY
|
| Quelle/Jahr | Physical Review B: 71 (2005), 184407-1 - 184407-11 |
| ISSN | 1098-0121 |
| DOI | |
| Verlag | Melville, NY: AIP |
| Klassifikationscode | PACS: 75.30.Fv ; PACS: 75.70.Rf ; PACS: 68.37.Ef ; PACS: 61.12.Ld |
| Zusammenfassung | The spin-density wave (SDW) on Cr(001) has been investigated at temperatures between 20-300 K by means of spin-polarized scanning tunneling microscopy (SP-STM). Although neutron-scattering data measured on the same crystal clearly show a spin-flip transition from a transversal (T)-SDW to a longitudinal (L)-SDW at the expected spin-flip (SF) temperature TSF=123 K, no change was found on the Cr(001) surface with SP-STM. Throughout the entire temperature range the Cr(001) surface maintains a topological antiferromagnetic order with an in-plane magnetization that inverts between adjacent atomically flat terraces separated by monatomic step edges. The experimental results are interpreted by an absence of a spin-flip transition in the near-surface region probably driven by the surface anisotropy. The continuous connection of the surface T-SDW to the bulk L-SDW is accomplished by the formation of a 90° domain wall just below the surface. |
Zitierung
Hänke, T., Krause, S., Berbil-Lautista, L., Bode, M., Wiesendanger, R., Wagner, V., Lott, D., & Schreyer, A. (2005). Absence of spin-flip transition at the Cr(001) surface: a combined spin-polarized scanning tunneling microscopy and neutron scattering study. Physical Review B, 71, 184407-1–184407-11. https://doi.org/10.1103/physrevb.71.184407