Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have uncovered previously unobserved oscillation states – so-called Floquet states – in tiny magnetic vortices. Unlike earlier experiments, which required energy-intensive laser pulses to create such states, the team in Dresden discovered that a subtle excitation with magnetic waves is sufficient. This finding not only raises fundamental questions in basic physics but could also eventually serve as a universal adapter bridging electronics, spintronics, and quantum devices. The team reports its results in the scientific journal Science (DOI: 10.1126/science.adq9891).

Research led by Daniel Ivanov, a physics and astronomy graduate student in the Kenneth P. Dietrich School of Arts and Sciences at Pitt, uncovered a contender for one of the earliest observed spiral galaxies containing a stellar bar, a sometimes-striking visual feature that can play an important role in the evolution of a galaxy.

A novel dye-sensitized photocatalyst developed at Science Tokyo enables the capture of long-wavelength visible light for efficient hydrogen conversion, surpassing conventional photocatalysts. By replacing the metal center of traditional complexes with osmium, the researchers achieved a photocatalyst that can absorb light with wavelengths beyond 600 nanometers. This shift in the absorption profile enables the system to harvest a broader range of the solar spectrum, generating more excited electrons to enhance hydrogen-evolution performance.

2D single-crystalline metal nanosheets are considered promising candidates for triboelectric nanogenerators (TENGs). Now, Researchers at Jeonbuk National University have developed a hierarchical porous copper nanosheet-based TENG that significantly improves triboelectric performance through a unique structural design. The proposed architecture provides integrated multifunctionality, including energy harvesting, electromagnetic interference shielding, and Joule heating, making it highly lucrative for next-generation wearable electronic devices.