Work

X-ray view of light-induced spin reorientation in TmFeO 3 : Direct observation of a 90 ∘ Néel vector rotation

Year: 2026

Type: article

Abstract: 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.

Source: Physical Review Letters

DOI: 10.1103/1cbm-wc5p

Authors: Somnath Jana, Ronny Knut, Dmytro Afanasiev, Niko Pontius, Christian Schüßler-Langeheine, Christian Tzschaschel, Daniel Schick, Alexey V. Kimel, Olof Karis, Clemens von Korff Schmising, Stefan Eisebitt

Language: English

Topic: Advanced Condensed Matter Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Deutsche Forschungsgemeinschaft, Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet, HORIZON EUROPE European Research Council

Awards: Element specific investigations of ultrafast magnetisation dynamics, TRR 227: Ultraschnelle Spindynamik, Antiferromagnetic Spin Transport With Relativistic Waves, G4846862643

OpenAlex ID: W4416048392

FWCI:

Cites:

Cited by:

Related to: 10