Ultrafast X-ray sonography reveals the spatial heterogeneity of the laser-induced magneto-structural phase transition in FeRh
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866908461108822016 |
|---|---|
| author | Mattern, Maximilian Rodriguez-Fernandez, Angel Shayduk, Roman Arregi, Jon Ander Uhlíř, Vojtěch Boesenberg, Ulrike Hallmann, Jörg Jo, Wonhyuk Leonau, Aliaksandr Rysov, Rustam Wrigley, James Zozulya, Alexey Eisebitt, Stefan Madsen, Anders Schick, Daniel Pudell, Jan-Etienne |
| author_facet | Mattern, Maximilian Rodriguez-Fernandez, Angel Shayduk, Roman Arregi, Jon Ander Uhlíř, Vojtěch Boesenberg, Ulrike Hallmann, Jörg Jo, Wonhyuk Leonau, Aliaksandr Rysov, Rustam Wrigley, James Zozulya, Alexey Eisebitt, Stefan Madsen, Anders Schick, Daniel Pudell, Jan-Etienne |
| contents | Phase transitions are governed by both intrinsic and extrinsic heterogeneities, yet capturing their spatio-temporal dynamics remains a challenge. While ultrafast techniques track phase changes on femtosecond timescales, the spatial complexity and stochastic nature of the processes often remain hidden. Here, we present an experimental approach that combines well-established ultrafast hard-X-ray diffraction with a propagating strain pulse as a universal and non-invasive probe. This ultrafast X-ray sonography can capture the spatio-temporal phase heterogeneity in great detail by resolving the phase-specific strain response. We apply this approach to the antiferromagnetic-to-ferromagnetic magneto-structural phase transition in FeRh and identify the ferromagnetic phase to nucleate at the surface as narrow columnar domains of approximately $30\,\text{nm}$ diameter. Besides reconciling the diverse experimental results in the literature on FeRh, X-ray sonography offers a versatile platform for investigating a wide range of phase transitions accompanied by structural changes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_16638 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ultrafast X-ray sonography reveals the spatial heterogeneity of the laser-induced magneto-structural phase transition in FeRh Mattern, Maximilian Rodriguez-Fernandez, Angel Shayduk, Roman Arregi, Jon Ander Uhlíř, Vojtěch Boesenberg, Ulrike Hallmann, Jörg Jo, Wonhyuk Leonau, Aliaksandr Rysov, Rustam Wrigley, James Zozulya, Alexey Eisebitt, Stefan Madsen, Anders Schick, Daniel Pudell, Jan-Etienne Materials Science Phase transitions are governed by both intrinsic and extrinsic heterogeneities, yet capturing their spatio-temporal dynamics remains a challenge. While ultrafast techniques track phase changes on femtosecond timescales, the spatial complexity and stochastic nature of the processes often remain hidden. Here, we present an experimental approach that combines well-established ultrafast hard-X-ray diffraction with a propagating strain pulse as a universal and non-invasive probe. This ultrafast X-ray sonography can capture the spatio-temporal phase heterogeneity in great detail by resolving the phase-specific strain response. We apply this approach to the antiferromagnetic-to-ferromagnetic magneto-structural phase transition in FeRh and identify the ferromagnetic phase to nucleate at the surface as narrow columnar domains of approximately $30\,\text{nm}$ diameter. Besides reconciling the diverse experimental results in the literature on FeRh, X-ray sonography offers a versatile platform for investigating a wide range of phase transitions accompanied by structural changes. |
| title | Ultrafast X-ray sonography reveals the spatial heterogeneity of the laser-induced magneto-structural phase transition in FeRh |
| topic | Materials Science |
| url | https://arxiv.org/abs/2507.16638 |