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Scientific Highlights

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Datum
2. Februar 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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9. Januar 2023
Unusual ferrimagnetism

Unusual ferrimagnetism in CaFe2O4

Rare ferrimagnet states in a phase competing antiferromagnet.

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4. April 2022
Blick in die magnetische Zukunft

A look into the magnetic future

Media Releases Research Using Synchrotron Light Materials Research

PSI researchers are the first to observe a specific behaviour of magnetic ice.

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9. März 2022
Layered crystal structure

Exchange scaling of ultrafast angular momentum transfer in 4f antiferromagnets

A novel approach to controlling the speed of magnetic processes has been found through resonant magnetic scattering in an antiferromagnetic Lanthanide intermetallics.

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15. Dezember 2021
amb_cu_teaser

Fingerprint of Copper in Peptides Linked to Alzheimer's Disease

In an interdisciplinary project, researchers from the Laboratory of Nanoscale Biology in BIO  and the Laboratory for Condensed Matter in PSD have revealed the reaction between the nitrogen atoms of the amyloid-beta peptide and copper/zinc ions by using soft X-ray absorption spectroscopy.

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4. November 2021
Lithium Fluoride on Ag(100): Dendrites vs. Islands

Vastly Different Morphologies Dependent on the Growth Temperature

Lithium fluoride is an important material which is technologically exploited in spintronics and organic light emitting devices. It turns out that there is a vast difference between the morphologies of ultrathin lithium fluoride grown on the (100) facet of a silver single crystal.  At room temperature dendrites are obtained while at elevated temperature lithium fluoride forms square islands. The system is an interesting model to study the crossover between diffusion limited aggregates and island growth.

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25. Oktober 2021
Artist's view of the functionalized endohedral fullerene on a graphite surface.

Magnetic Bistability at a Record High Temperature in a Sub-Monolayer of Endohedral Fullerenes

A team of the Leibniz Institute for Solid State Research (IFW) from Dresden, Germany, led by Dr Alexey Popov has now demonstrated a record blocking temperature of 28 Kelvin at which the magnetic bistability still survives in a submonolayer of a chemically functionalized species of endofullerenes. In this research, X-ray magnetic circular dichroism measurements at low temperatures and high magnetic field at the X-Treme beam line are crucial. The results pave the way toward using such single-molecule magnets as information carriers or magnetic bits.

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27. September 2021
eunige

Ultrafast electron localization

This experiment performed at SwissFEL shows how fast we can localize electrons out of an electron gas into correlated, well localized states of a material. It is based on a combined ultrafast x-ray absorption and diffraction experiment on an intermetallic system.

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26. August 2021
toc fig nno

Creating novel quantum phases via the heterostructure engineering

Within this synergetic collaboration, PSI scientists have investigated the correlation between magnetic and electronic ordering in NdNiO3 by tuning its properties through proximity to a ferromagnetic manganite layer. The main outcome is that the stray magnetic field from the manganite layer causes a novel ferromagnetic-metallic (FM-M) phase in NNO. This work demonstrates the utilization of heterostructure engineering for creating novel quantum phases.

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