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Scientific Highlights

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27 September 2022
SAF Skyrmion Nucleation

Nucleation of synthetic antiferromagnetic skyrmions

Magnetic skyrmions stabilized in synthetic antiferromagnets hold promise as nanoscale information carriers in novel non-volatile magnetic memory designs. In this work, scientists in a worldwide collaborative effort have demonstrated the electrically-induced nucleation of magnetic skyrmions in synthetic antiferromagnets, which is a vital stepping stone towards the applicability of these magnetic textures in devices.

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26 September 2022
STXM images of ferrimagnetic skyrmions

Ferrimagnetic Skyrmions: fast and straight

Scientists have demonstrated, through magnetic X-ray microscopy, that magnetic skyrmions stabilized in ferrimagnetic heterostructures can be displaced by electrical currents at high velocities, and exhibit low deflection angles, proving that ferrimagnetic skyrmions are good candidates for fast skyrmionic devices.

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23 September 2022
Phase fractions in Ti-6Al-4V-3Fe

In situ alloying during additive manufacturing

In situ alloying is an effective method to engineer microstructures of additively manufactured Ti6Al4V3Fe alloys. 

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22 September 2022
Kurti_Prize

Alexander Grimm wins 2022 Nicholas Kurti prize

We are happy to announce that Alex has been awarded the 2022 Nicholas Kurti Science prize. The prize recognises his work on non-linear effects in Josephson junctions for quantum information processing.

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21 September 2022
Gupta et al

Two types of charge order with distinct interplay with superconductivity in the kagome material CsV3Sb5

The kagome metals of the family AV3Sb5, featuring a unique structural motif, harbor an array of intriguing phenomena such as chiral charge order and superconductivity. CsV3Sb5 is of particular interest because it displays a double superconducting dome in the region of the temperature-pressure phase diagram where charge order is still present. However, the microscopic origin of such an unusual behavior remains an unsolved issue. Here, to address it, we combine high-pressure, low-temperature muon spin relaxation/rotation with first-principles calculations. We observe ....

 

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15 September 2022
Tseng et al

Crossover of high-energy spin fluctuations from collective triplons to localized magnetic excitations in Sr14−xCaxCu24O41 ladder

We studied the magnetic excitations in the quasi-one-dimensional (q-1D) ladder subsystem of Sr14−xCaxCu24O41 (SCCO) using Cu L3-edge resonant inelastic X-ray scattering (RIXS). By comparing momentum-resolved RIXS spectra with high (x = 12.2) and without (x = 0) Ca content, we track the evolution of the magnetic excitations from collective two-triplon (2 T) excitations (x = 0) to weakly- dispersive gapped modes at an energy of 280 meV (x = 12.2)...

 

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14 September 2022
shutterstock_1779975584_h2

Capturing control errors in quantum annealing

The real-world application of this type of quantum computing gets one step closer with a new method to capture errors while qubits are talking to each other.

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12 September 2022
To discover the hidden order within CrSBr’s magnetic structure, researchers needed complementary evidence from three different facilities: the Swiss Muon Source, the Swiss Spallation Neutron Source and the Swiss Light Source.

Three PSI research facilities reveal magnetic crossover

Insights from the Swiss Muon Source, Swiss Spallation Neutron Source and Swiss Light Source reveal this coveted characteristic in an exotic layered material.

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7 September 2022
LES

CASH+ solid solution cement model

A new incrementally extendable thermodynamic model, CASH+, was developed, aimed at accurately describing equilibrium composition, solubility, and elemental uptake of C-A-S-H gel-like phases at varying chemical conditions in cement systems. Cement is widely used as matrix and backfill for low and intermediate level waste. Calcium-Aluminum-Silicate Hydrates (C-A-S-H) are the most important binding phases in cement. They are also responsible for the initial entrapment of radionuclides via sorption or solid solution formation mechanisms. Therefore, the thermodynamic modelling of C-A-S-H stability, solubility and interaction with radionuclides in cement porewater is crucial for understanding hydration, blending, degradation of cement-based materials and for the performance assessment of cementitious repositories.

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26 August 2022
Distribution of plain and FEP coated Toray and Freudenberg

The Effects of Hydrophobicity Treatment of Gas Diffusion Layer on Ice Crystallization in PEFCs

Water management is crucial to the successful cold-start in polymer electrolyte fuel cells (PEFCs). The sudden freeze of supercooled water blocks the reactant gas in the cathode and causes rapid voltage failure. In this work, we statistically evaluated the effects of the gas diffusion layer (GDL) substrate, size, saturation, and the coating loads and methods of hydrophobic polymer on the freezing probability of supercooled water by differential scanning calorimetry (DSC).

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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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