X-ray view of light-induced spin reorientation in TmFeO 3 : Direct observation of a 90 ∘ Néel vector rotation
Using time-resolved X-ray magnetic linear dichroism in reflection, we provide a direct probe of the Néel vector dynamics in TmFeO$_3$ on a ultrafast timescale. Our measurements reveal that, following optical excitation, the Néel vector undergoes a spin reorientation transition primarily within the a-c plane, completing a full 90° rotation within approximately 20 ps. This study highlights the ability to probe dynamics of antiferromagnets at its intrinsic timescale in reflection geometry, paving the way for investigations of a wide range of antiferromagnets grown on application relevant substrates.
Authors
- Alexey V. Kimel (ORCID: https://orcid.org/0000-0002-0709-042X)
- Clemens von Korff Schmising (ORCID: https://orcid.org/0000-0003-3159-3489)
- Christian Schüßler-Langeheine (ORCID: https://orcid.org/0000-0002-4553-9726)
- N. Pontius (ORCID: https://orcid.org/0000-0002-5658-1751)
- Stefan Eisebitt (ORCID: https://orcid.org/0000-0001-7608-5061)
- Olof Karis (ORCID: https://orcid.org/0000-0001-6406-217X)
- Ronny Knut (ORCID: https://orcid.org/0000-0001-6973-1205)
- Somnath Jana (ORCID: https://orcid.org/0000-0001-8655-0545)
- Daniel Schick (ORCID: https://orcid.org/0000-0001-7988-6489)
- Christian Tzschaschel (ORCID: https://orcid.org/0000-0003-3890-8121)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2026-11-06
- DOI
- https://doi.org/10.1103/1cbm-wc5p
- Primary Topic
- Advanced Condensed Matter Physics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft
- Knut och Alice Wallenbergs Stiftelse
- Vetenskapsrådet
- HORIZON EUROPE European Research Council