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24 July 2025
A new, creative approach to switching magnetization
Condensed Matter Physics
The Condensed Matter Physics group uses the radiation of free electron laser FELIX to study both static and dynamic properties of matter.
Our research
Infrared and THz radiation is uniquely suited for studying and controlling systems such as molecules, clusters and complexes, but also electrons in metals and semiconductors, as well as the collective modes of atomic-scale particles. Our department uses the radiation of FELIX lasers for fundamental studies of matter. The research directions range from ultrafast spin and magnetization dynamics, to extreme nonlinear phononics and optics, and to a rational design of matter at an atom-by-atom level.
Research directions
Ultrafast phononic switching of magnetic order
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Circular phonons and phono-magnetism
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Strong light-matter interaction in the epsilon-near-zero regime
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Propagation of magneto-elastic waves
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Catalytic processes on a molecular level
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Geometric and electronic structure of transition metal clusters
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Our latest news
21 November 2024
News
Laser experiments bring extremely fast data storage a step closer
Our publications
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Adsorption of methanol on cationic cobalt clusters in the gas phase
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| Label | Content |
|---|---|
| Author(s) | Sijie Yang, Ya-Ke Li, Chenchen Ji, Piero Ferrari, Shengchun Yang, Ewald Janssens, Gao-Lei Hou |
| Year | 2025 |
| Journal | Chemical Physics 162, 07 |
Laboratory infrared spectra and fragmentation chemistry of sulfur allotropes
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| Label | Content |
|---|---|
| Author(s) | Piero Ferrari, Giel Berden, Britta Redlich, Laurens B. F. M. Waters, Joost M. Bakker |
| Year | 2024 |
| Journal | Nature Communications 15, Article number: 5928 |
Phononic Switching of Magnetization by the Ultrafast Barnett Effect
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| Label | Content |
|---|---|
| Author(s) | C.S. Davies, F.G.N. Fennema, A. Tsukamoto, I. Razdolski, A.V. Kimel and A. Kirilyuk |
| Year | 2024 |
| Journal | Nature 628, 540 |
Epsilon-near-zero regime enables permanent ultrafast all-optical reversal of ferroelectric polarization
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| Label | Content |
|---|---|
| Author(s) | M. Kwaaitaal, D. G. Lourens, C. S. Davies & A. Kirilyuk |
| Year | 2024 |
| Journal | Nature Photonics 18, 569 |
Group members
Dr. Joost Bakker
Associate Professor
+31 (0) 24 3653952
joost.bakker@ru.nl
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Héloïse Damas
Postdoctoral Researcher
heloise.damas@ru.nl
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Dr. Carl Davies
Staff Scientist
+31 (0) 24 3653940
carl.davies@ru.nl
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Dr. Nils Dessmann
Scientist
+31 (0) 24 3653943
nils.dessmann@ru.nl
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Olga Duda
PhD Candidate
olga.duda@ru.nl
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Niels Fennema
PhD Candidate
niels.fennema@ru.nl
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Dr. Piero Ferrari
Research Officer
piero.ferrariramirez@ru.nl
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Dr. Takeshi Hayashida
Researcher
takeshi.hayashida@ru.nl
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Prof. dr. Andrei Kirilyuk
Professor
+31 (0) 6 25010132
andrei.kirilyuk@ru.nl
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Sanne Kusters
PhD Candidate
sanne.kusters@ru.nl
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Dr. Maarten Kwaaitaal
Postdoctoral Researcher
maarten.kwaaitaal@ru.nl
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Daniel Lourens
PhD Candidate
daniel.lourens@ru.nl
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Bastiaan Poetsma
Master Internship
bastiaan.poetsma@ru.nl
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Deepak Pradeep
PhD Candidate
+31 (0) 24 3653932
deepak.pradeep@ru.nl
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Kilian Ramsamoedj
PhD Candidate
kilian.ramsamoedj@ru.nl
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Long Tang
PhD Candidate
+31 (0) 6 20861877
long.tang@ru.nl
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Alexander Trushin
PhD Candidate
alexander.trushin@ru.nl
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Dr. Tomasz Zalewski
Postdoctoral Researcher
tomasz.zalewski@ru.nl
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Rutger Zijlstra
PhD Candidate
rutger.zijlstra@ru.nl
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