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Scientific Highlights

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Datum
21 février 2023
a star is born

A star is born

Swiss Light Source SLS reveals complex chemistry inside ‘stellar nurseries’

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14 février 2023
Das PSI und VDL ETG arbeiten bereits seit zehn Jahren zusammen.

High-tech company VDL ETG: PSI’s new neighbour

Future Technologies Industrial co-operation

The Dutch company VDL ETG has signed a rental agreement with Park Innovaare.

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8 février 2023
Cochran PRL

Visualizing Higher-Fold Topology in Chiral Crystals

Novel topological phases of matter are fruitful platforms for the discovery of unconventional electromagnetic phenomena. Higher-fold topology is one example, where the low-energy description goes beyond standard model analogs. Despite intensive experimental studies, conclusive evidence remains elusive for the multigap topological nature of higher-fold chiral fermions. In this Letter, we leverage a combination of fine-tuned chemical engineering and photoemission spectroscopy with photon energy contrast to discover the higher-fold topology of a chiral crystal.

 

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2 février 2023
Teaser

Discovery of a large unquenched orbital moment in a 2D van der Waals ferromagnet

3d transition metals often exhibit a quenched orbital moment when in a solid state system. Therefore, the proposition of a large unquenched orbital moment for V in VI3 caused some surprise and discussion in the scientific community. Experimental and theoretical works diverge on the fact of whether the orbital moment is quenched or not. In our work we have been able to give an answer this open issue, proposing also a model for the ground state of VI3.

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31 janvier 2023
heart

X-ray tomography helps understand how the heart beats

Researchers at the Swiss Light Source SLS use X-ray phase contrast imaging to study a heart in action as it beats.

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24 janvier 2023
Tool Steel

Solidification modes during additive manufacturing

The thermal conditions during laser-based additive manufacturing are inferred from high-speed X-ray diffraction data and can be linked to a model for rapid solidification.

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19 janvier 2023
von Arx et al

Fate of charge order in overdoped La-based cuprates

In high-temperature cuprate superconductors, stripe order refers broadly to a coupled spin and charge modulation with a commensuration of eight and four lattice units, respectively. How this stripe order evolves across optimal doping remains a controversial question. Here we present a systematic resonant inelastic x-ray scattering study of weak charge correlations in La2−xSrxCuO4 and La1.8−xEu0.2SrxCuO4. Ultra high energy resolution experiments demonstrate the importance of the separation of inelastic and elastic scattering processes.

 

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9 janvier 2023
Unusual ferrimagnetism

Unusual ferrimagnetism in CaFe2O4

Rare ferrimagnet states in a phase competing antiferromagnet.

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16 décembre 2022
Manuel Guizar-Sicairos at SLS

Manuel Guizar-Sicairos appointed as Associate Professor at EPF Lausanne and head of the Computational X-ray Imaging group at PSI

Dr. Manuel Guizar-Sicairos, currently Senior Scientist at PSI, was appointed as Associate Professor of Physics in EPF Lausanne and head of the Computational X-ray Imaging group in PSI.

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PSI Scientific Reports

Archive 2006-2012. The Scientific Reports – containing accounts of research topics from all the different areas – provide an impression of the variety of subjects researched at PSI.

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