Speed limits of the laser-induced phase transition in FeRh
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU152287" target="_blank" >RIV/00216305:26620/24:PU152287 - isvavai.cz</a>
Result on the web
<a href="https://pubs.aip.org/aip/apm/article/12/5/051124/3295280/Speed-limits-of-the-laser-induced-phase-transition" target="_blank" >https://pubs.aip.org/aip/apm/article/12/5/051124/3295280/Speed-limits-of-the-laser-induced-phase-transition</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0206095" target="_blank" >10.1063/5.0206095</a>
Alternative languages
Result language
angličtina
Original language name
Speed limits of the laser-induced phase transition in FeRh
Original language description
We use ultrafast x-ray diffraction and the polar time-resolved magneto-optical Kerr effect to study the laser-induced metamagnetic phase transition in two FeRh films with thicknesses below and above the optical penetration depth. In the thin film, we identify an intrinsic timescale for the light-induced nucleation of ferromagnetic (FM) domains in the antiferromagnetic material of 8ps, which is substantially longer than the time it takes for strain waves to traverse the film. For the inhomogeneously excited thicker film, only the optically excited near-surface part transforms within 8ps. For strong excitations, we observe an additional slow rise of the FM phase, which we experimentally relate to a growth of the FM phase into the depth of the layer by comparing the transient magnetization in frontside and backside excitation geometry. In the lower lying parts of the film, which are only excited via near-equilibrium heat transport, the FM phase emerges significantly slower than 8ps after heating above the transition temperature.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
APL Materials
ISSN
2166-532X
e-ISSN
—
Volume of the periodical
12
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
„“-„“
UT code for WoS article
001235802100002
EID of the result in the Scopus database
2-s2.0-85194495017