Bulk Modulus

Researchers have developed and demonstrated a technique that allows them to engineer a class of materials called layered hybrid perovskites (LHPs) down to the atomic level, which dictates precisely how the materials convert electrical charge into light. The technique opens the door to engineering materials tailored for use in next-generation printed LEDs and lasers—and holds promise for engineering other materials…

Researchers from Skoltech, Jilin University and Beijing HPSTAR in China, and their German colleagues have synthesized and studied a new type of hydrogen-rich superconductor. Technically referred to as an A15-type lanthanum superhydride, with the formula La4H23, it shows superconductivity below minus 168 degrees Celsius at a pressure of 1.2 million atmospheres. The research results were published in the National…

Researchers led by Giulia Galli at University of Chicago's Pritzker School of Molecular Engineering report a computational study that predicts the conditions to create specific spin defects in silicon carbide. Their findings, published online in Nature Communications, represent an important step towards identifying fabrication parameters for spin defects useful for quantum technologies.

Scientists at the National Institute of Standards and Technology (NIST) with colleagues elsewhere have employed neutron imaging and a reconstruction algorithm to reveal for the first time the 3D shapes and dynamics of very small tornado-like atomic magnetic arrangements in bulk materials.

Semicrystalline polymers are solids that are assumed to flow only above their melting temperature. In a new study published in Science Advances, Chien-Hua Tu and a research team at the Max Planck Institute for Polymer Research in Germany and the University of Ioannina Greece confined crystals within nanoscopic cylindrical pores to show the flowing nature of semicrystalline polymers below their melting point,…

Quantum advances rely on the production of nanoscale wires that are based on several state-of-the-art nanolithographic technologies, to develop wires via bottom-up synthesis. However, a critical challenge is to grow uniform atomic crystalline wires and construct network structures to build nanocircuits.

Scientists develop self-monitoring metamaterial concrete for smart infrastructure systems. Engineers at the University of Pittsburgh are bringing concrete into the 21st century by reimagining its design. Concrete, which has its roots dating back to the Roman Empire, remains the most widely utilized

In condensed matter systems, an essential characteristic of electrons besides charge and spin is the orbital degree of freedom (ODoF). It plays a crucial role in understanding unconventional properties in solid-state materials and in "orbital physics" toward unveiling the science and technology of correlated electrons. However, due to the complexity and various degrees of freedom simultaneously involved in real…

Nearly a decade ago, researchers heralded the discovery of a new wonder class of ultrathin materials with special optical and electrical properties that made it a potential rival for graphene, a form of carbon discovered in 2004 whose own special properties interest both scientists and engineers.

In a recent study, researchers led by Chen Qihong and Jin Kui from the Institute of Physics (IOP) of the Chinese Academy of Sciences (CAS) used an ionic-liquid gating technique to tune the transition temperature (Tc) of FeSe, the structurally simplest iron-based superconductor, and found a universal quantitative relationship between superconductivity and the strange-metal state, which gives insight into the…

A new approach to manufacturing perovskite solar cells has addressed previous problems and yielded devices with high efficiency and excellent stability, researchers at the National Renewable Energy Laboratory (NREL) report in the new issue of the journal Science.

There's a change in behavior when the plasma starts burning, and nobody knows why.

Adding water enables DNA-interconnected crystals to bounce back to original shape after damage and deformation

Industrial processes release substantial quantities of waste heat, which can be harvested to generate electricity. At present, the conversion of low grade waste heat to electricity relies solely on...

Article URL: https://en.wikibooks.org/wiki/Space_Transport_and_Engineering_Methods/Lunar_Development Comments URL: https://news.ycombinator.com/item?id=32874110 Points: 1 # Comments: 0

This study was led by Dr. Yang Hu (Institute of Department of Energy Conversion and Storage, the Technical University of Denmark) and Dr. Qing-Feng Li (Institute of Department of Energy Conversion and Storage, Technical University of Denmark).

Article URL: https://en.wikipedia.org/wiki/Aneutronic_fusion Comments URL: https://news.ycombinator.com/item?id=32092818 Points: 1 # Comments: 0

A semiconducting material that performed a quantum "flip" from a conductor to an insulator above room temperature has been developed at the University of Michigan. It potentially brings the world closer to a new generation of quantum devices and ultra-efficient electronics.

Glass materials are widely used in optical and optoelectronic devices due to their low cost and excellent mechanical and optical properties. Among them, glass concave/convex linear structures with feature sizes ranging from several micrometers to hundreds of micrometers find intensive applications.

Cavendish physicists have discovered two new ways to improve organic semiconductors. They found a way to remove more electrons from the material than previously possible and used unexpected properties in an environment known as the non-equilibrium state, boosting its performance for use in electronic devices.