Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-108| Authors: | Sapozhnik, Alexey Filianina, Mariia Bodnar, Stanislav Lamirand, A. Mawass, Mohamad Assaad Skourski, Y. Elmers, Hans-Joachim Zabel, Hartmut Kläui, Mathias Jourdan, Martin |
| Title: | Direct imaging of antiferromagnetic domains in Mn2Au manipulated by high magnetic fields |
| Online publication date: | 26-Aug-2019 |
| Year of first publication: | 2018 |
| Language: | english |
| Abstract: | In the field of antiferromagnetic (AFM) spintronics, information about the Neel vector, AFM domain sizes, and spin-flop fields is a prerequisite for device applications but is not available easily. We have investigated AFM domains and spin-flop-induced changes of domain patterns in Mn2Au(001) epitaxial thin films by x-ray magnetic linear dichroism photoemission electron microscopy (PEEM) using magnetic fields up to 70 T. As-prepared Mn2Au films exhibit AFM domains with an average size <= 1 mu m. Application of a 30 T field, exceeding the spin-flop field, along a magnetocrystalline easy axis dramatically increases the AFM domain size with Neel vectors perpendicular to the applied field direction. The width of Neel-type domain walls (DW) is below the spatial resolution of the PEEM and therefore can only be estimated from an analysis of the DW profile to be smaller than 80 nm. Furthermore, using the values for the DW width and the spin-flop field, we evaluate an in-plane anisotropy constant ranging between 1 and 17 eV/f.u.. |
| DDC: | 530 Physik 530 Physics |
| Institution: | Johannes Gutenberg-Universität Mainz |
| Department: | FB 08 Physik, Mathematik u. Informatik |
| Place: | Mainz |
| ROR: | https://ror.org/023b0x485 |
| DOI: | http://doi.org/10.25358/openscience-108 |
| URN: | urn:nbn:de:hebis:77-publ-592132 |
| Version: | Accepted version |
| Publication type: | Zeitschriftenaufsatz |
| License: | In Copyright |
| Information on rights of use: | https://rightsstatements.org/vocab/InC/1.0/ |
| Journal: | Physical review : B 97 13 |
| Pages or article number: | Art. 134429 |
| Publisher: | APS |
| Publisher place: | College Park, Md. |
| Issue date: | 2018 |
| ISSN: | 2469-9969 1095-3795 |
| Publisher URL: | http://dx.doi.org/10.1103/PhysRevB.97.134429 |
| Publisher DOI: | 10.1103/PhysRevB.97.134429 |
| Appears in collections: | JGU-Publikationen |
