Year: 2019
Type: article
Abstract: Two different superstructures form when atomic H is incorporated in the Fe monolayer on Ir(111). Depending on the amount of H provided, either a highly ordered $p(2\ifmmode\times\else\texttimes\fi{}2)$ hexagonal superstructure or an irregular roughly square structure is created. We present here spin-polarized scanning tunneling microscopy measurements which reveal that in both cases the magnetic nanoskyrmion lattice state of the pristine Fe monolayer is modified. Our measurements of the magnetic states in these hydrogenated films are in agreement with superpositions of cycloidal spin spirals which follow the pattern and the symmetry dictated by the H superstructures. We thus demonstrate here the possibility to vary the symmetry of a noncollinear magnetic state in an ultrathin film without changing its substrate.
Institution: Universität Hamburg
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Deutsche Forschungsgemeinschaft
Award: G870518219
OpenAlex ID: W2904408441