Document Type
Article
Publication Date
2-4-2015
Publication Title
New Journal of Physics
Abstract
We demonstrate a canted magnetization of biatomic zigzag Co chains grown on the (5 × 1) reconstructed Ir(001) surface using density functional theory (DFT) calculations and spin-polarized scanning tunneling microscopy (SP-STM) experiments. It is observed by STM that biatomic Co chains grow in three different structural configurations. Our DFT calculations show that they are all in a ferromagnetic (FM) state. Two chain types possess high symmetry due to two equivalent atomic strands and an easy magnetization direction that is along one of the principal crystallographic axes. The easy magnetization axis of the zigzag Co chains is canted away from the surface normal by an angle of 33°. This giant effect is caused by the broken chain symmetry on the substrate in combination with the strong spin–orbit coupling of Ir. SP-STM measurements confirm the stable FM order of the zigzag chains with a canted magnetization.
Repository Citation
Dupé, B.; Bickel, Jessica E.; Mokrousov, Y.; Otte, F.; von Bergmann, Kirsten; Kubetzka, André; Heinze, Stefan; and Wiesendanger, Roland, "Giant Magnetization Canting Due to Symmetry Breaking in Zigzag Co Chains on Ir(001)" (2015). Physics Faculty Publications. 218.
https://engagedscholarship.csuohio.edu/sciphysics_facpub/218
DOI
10.1088/1367-2630/17/2/023014
Version
Publisher's PDF
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Volume
17
