Hafnia-based ferroelectric memories are emerging as promising candidates for next-generation nonvolatile memory because they combine excellent scalability with compatibility with CMOS technology. Further reducing the thickness of ferroelectric films can lower operating voltage and increase storage density, but maintaining reliability at high temperatures becomes increasingly challenging. Researchers at Fudan University have now shown that tailoring the size and orientation of ferroelectric grains can help address this challenge. Their ultrathin devices remain highly stable at 225 °C, pointing to a route toward dense and reliable ferroelectric memories for harsh thermal environments. The study was published in Science Bulletin.

Precise micromachining of refractory high-entropy alloys keeps a significant challenge for inherent brittleness and low thermal conductivity. In this work, water-jet guided laser technology enables a higher micromachining quality compared with CNL and femtosecond laser. Notably, WJGL reduces the heat-affected zone (HAZ) to 298 nm, ~99.1% lower than that of CNL. The material removal mechanism and microstructural evolution are elucidated. This work provides a reliable route for precision manufacturing of hard-to-process RHEAs.

New study shows that catastrophic fractures begin not with an explosive crack, but with tiny two-dimensional patches that creep almost imperceptibly before suddenly racing through a material. The findings offer a new picture of material failure, with implications ranging from detecting fractures to understanding how earthquakes begin.

Micro-QLEDs are emerging as a promising AR technology due to their high brightness and high-resolution capability. Scientists in China developed a two-inch wafer-scale fabrication process for Micro-QLEDs which provides a simple and low-cost route to accelerate the industrial application of Micro-QLED display.

Kyoto, Japan -- Plants are home to a diverse array of microorganisms that support their growth and help them adapt to environmental stress -- of which there has been an abundance of late. High temperatures and drought caused by human-induced climate change have led to reduced crop yields and the use of biofertilizers such as rhizosphere microorganisms, which help plants absorb nutrients and increase their resistance to disease and stresses. Yet single microorganisms have difficulties sustaining themselves in crops and remaining functional in the fluctuating environment of an agricultural field. This is where microbial communities can help.

A recent approach involves creating defined microbial communities -- DMCs -- by combining multiple microorganisms, which in turn influence each other and can thereby strengthen their resilience. However, the composition and function of such a community changes depending on plant-specialized metabolites and environmental conditions, rendering these rather impractical to use in conventional trial-and-error experiments aiming to find optimal microbial communities from amongst a vast number of combinations.

This motivated a team of researchers from Kyoto University, with help from colleagues at Tohoku University and RIKEN, to integrate microorganism data and establish a rational, predictable method for designing DMCs. The team chose the humble tomato as their plant subject.

In the International Journal of Extreme Manufacturing, researchers have developed a technique that uses electric fields to anchor and stretch liquid metal, allowing it to freeze in mid-air to form unsupported 3D circuits.

In International Journal of Extreme Manufacturing, researchers have now created a compact security component made of stacked metal oxides that produces reliable hardware fingerprints and cryptographic keys across a broad temperature span from -50°C to 150°C.