Scientific Highlights
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).
Entanglement between Muon and I > 1/2 Nuclear Spins as a Probe of Charge Environment
We report on the first example of quantum coherence between the spins of muons and quadrupolar nuclei. We reveal that these entangled states are highly sensitive to a local charge environment and thus, can be deployed as a functional quantum sensor of that environment. The quantum coherence effect was observed in vanadium intermetallic compounds which adopt the A15 crystal structure, and whose members include all technologically pertinent superconductors. Furthermore ...
Stronger magnets, faster particles, new physics.
Probing the very smallest building blocks of matter requires big experiments. That is why physicists built an 18 Tesla high temperature superconducting magnet.
Poster Prize 2022: First Prize (AKB Foundation) of the SAPhW Poster Award at the Swiss Pharma Science Day 2022
Rahel Wallimann, PhD student in the “Nuclide Chemistry Group”, received the first prize (AKB Foundation) of the SAPhW Poster Award at the Swiss Pharma Science Day 2022.
PhD-thesis of Thomas Mortelman
Thomas Mortelmans has been a PhD at the Laboratory for X-ray Nanosciences and Technologies for the last four years. He recently defended his PhD-thesis at the University of Basel entitled: "The development of a nanofluidic particle size sorter and its biomedical sciences" and was awarded the grade of summa cum laude.
Spin Density Wave versus Fractional Magnetization Plateau in a Triangular Antiferromagnet
We report an excellent realization of the highly nonclassical incommensurate spin-density wave (SDW) state in the quantum frustrated antiferromagnetic insulator Cs2CoBr4. In contrast to the well-known Ising spin chain case, here the SDW is stabilized by virtue of competing planar in-chain anisotropies and frustrated interchain exchange.
Connecting Women in Physics
Through role models and networking, the first “Women in Physics Career Symposium” helps early career researchers stay in physics
Dynamic magnetic crossover at the origin of the hidden-order in van der Waals antiferromagnet CrSBr
The van-der-Waals material CrSBr stands out as a promising two-dimensional magnet. Here, we report on its detailed magnetic and structural character- istics. We evidence that it undergoes a transition to an A-type anti- ferromagnetic state below TN ≈ 140 K with a pronounced two-dimensional character, preceded by ferromagnetic correlations within the monolayers. Furthermore, we unravel the low-temperature hidden-order within the long- range magnetically-ordered state. We find that it is associated to a slowing down of the magnetic fluctuations, accompanied by a continuous reorienta- tion of the internal field.
A new spin on sample delivery for membrane proteins
Proteins hover in front of the X-ray beam at a Swiss Light Source beamline. Now, spinning thin films bring on board these trickiest of proteins.
Finding Ketenes in the Methanol to Olefins Process
How are the first olefins formed in the early stages of the methanol-to-olefins process? Detection of two reactive ketene species solves this long-standing puzzle.