To meet the requirements for electromagnetic wave (EMW) absorbing materials in corrosive environments such as the ocean, (NiZnCuMn)Co₂O₄ medium-entropy oxides (MEOs) with anticorrosion properties have been developed as novel EMW absorbing materials. The (NiZnCuMn)Co₂O₄ MEOs, which are synthesized via a hydrothermal reaction followed by calcination, exhibit robust EMW absorption performance with a minimum reflection loss of −64.05 dB and an ultrabroad effective absorption bandwidth that can reach 7.35 GHz by adjusting the hydrothermal reaction time. This high performance is attributed to the synergistic effect of dielectric loss, magnetic loss, and the unique structure of the MEOs. (NiZnCuMn)Co₂O₄ can be doped into epoxy resin, endowing it with excellent anti-corrosion properties. After being soaked in 3.5 wt.% NaCl for 14 days, (NiZnCuMn)Co₂O₄ prepared with a hydrothermal time of 12 h, shows a minimum corrosion current of 6.61 × 10⁻⁶ A cm⁻². When the hydrothermal time is 18 h, the corrosion current is 6.66 × 10⁻⁶ A cm⁻² and the corrosion potential reaches −0.712 V. This study provides new insights into the design of EMW absorbing materials with anticorrosion properties.

Researchers have developed a sulfur host with asymmetric Zn-N₄-S single atom sites that improves the performance of the aqueous zinc–sulfur batteries with nearly theoretical value and record-low polarization. They propose to overcome sluggish solid-solid conversion kinetics using coordination microenvironment engineering.

Researchers at the ctd.qmat Cluster of Excellence in Würzburg have developed a new type of electronic component. These open up new possibilities for energy-efficient hardware, such as for applications in artificial intelligence.

For decades, scientists have observed that the mass diffusion coefficient D and viscosity η governing momentum diffusion violate their expected inverse scaling relationship in glass-forming liquids implied by the widely assumed Stokes-Einstein relationship derived from Brownian motion theory. A recent article in National Science Review reveals that this so-called‘decoupling’ phenomenon does not arise from the inherent dynamic heterogeneity of glass-forming liquids, as often assumed, but rather simply from differences in the activation free energies of D and η already present in liquids at elevated temperatures where no appreciable dynamic heterogeneity exists. Dynamic heterogeneity is a symptom rather than the cause of decoupling.

Quasicrystals are neither conventional crystals nor amorphous solids, and their magnetic behavior remained a mystery. Researchers have now created the first bulk, annealable ferromagnetic quasicrystals and uncovered an unexpected form of magnetic critical behavior. The results show that the quasicrystal magnetism is controlled by both quasiperiodic structure and spin symmetry, establishing new design principles for magnetic quasicrystalline materials. These materials can form the foundation for new magnetic and quantum functional materials.

Future terahertz systems need front ends that can not only transmit data but also process signals directly. Scientists in China, Poland and Japan have developed a subarray programmable terahertz metasurface that performs optical Boolean logic and four-level amplitude modulation on the same chip. By gating four HEMT-based subarrays, the device achieves broadband control from 170 to 260 GHz, real-time logic up to 200 MHz, PAM-4 signaling, and 6 GHz modulation response.