Regensburg 2016 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 15: Magnetic Thin Films II

MA 15.8: Vortrag

Dienstag, 8. März 2016, 11:30–11:45, H33

Competition between complex magnetic states of Fe/Re(0001) — •Alexandra Palacio Morales, Kirsten von Bergmann, André Kubetzka, and Roland Wiesendanger — Department of Physics, University of Hamburg, D-20355 Hamburg, Germany

Scanning tunneling microscopy on Fe/Re(0001) recently revealed the growth of an epitaxial Fe monolayer (ML) [1] as well as the Fe ML spin texture [2]. A transition from pseudomorphic to reconstructed areas was found with increasing coverage. In the pseudomorphic regions, a frustrated antiferromagnetic triangular spin structure, called Néel state, was observed.

Here, we focus on the reconstructed areas of Fe on Re(0001). We found isolated and dense packed reconstruction lines together with a spin spiral having a period of 4 atomic lattice constants along the reconstruction lines. Moreover, the Néel state is observed in the vicinity of the spin spiral.

[1] S. Ouazi, et al., Surf. Sci. 630, 280 (2014).

[2] S. Ouazi, et al., Phys. Rev. Lett. 112, 076102 (2014).