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Honeycomb lattice sweetens quantum materials development

Researchers at the Department of Energy’s Oak Ridge National Laboratory are pioneering the design and synthesis of quantum materials, which are central to discovery science involving synergies with quantum computation. These innovative materials, including magnetic compounds with honeycomb-patterned lattices, have the potential to host states of matter with exotic behavior.

Using theory, experimentation and computation, scientists synthesized a magnetic honeycomb of potassium cobalt arsenate and conducted the most detailed characterization of the material to date. They discovered that its honeycomb structure is slightly distorted, causing magnetic spins of charged cobalt atoms to strongly couple and align.

Tuning these interactions, such as through chemically modifying the material or applying a large magnetic field, may enable the formation of a state of matter known as a quantum spin liquid. Unlike permanent magnets, in which spins align fixedly, quantum spins do not freeze in one magnetic state.

Astronomer uses ‘China Sky Eye’ to reveal binary origin of fast radio bursts

An international team of astronomers, including researchers from the Department of Physics at The University of Hong Kong (HKU), has uncovered the first decisive evidence that at least some fast radio burst (FRB) sources—brief but powerful flashes of radio waves from distant galaxies—reside in binary stellar systems. This means the FRB source is not an isolated star, as previously assumed, but part of a binary stellar system in which two stars orbit each other.

Using the Five-hundred-meter Aperture Spherical Telescope (FAST) located in Guizhou, also known as the “China Sky Eye,” the team detected a distinctive signal that reveals the presence of a nearby companion star orbiting the FRB source.

The discovery, published in Science, is based on nearly 20 months of monitoring an active repeating FRB located about 2.5 billion light-years away.

Biomass-derived furans offer sustainable alternative to petroleum in chemical production

A research project conducted by the Max-Planck-Institut für Kohlenforschung shows how biomass can be used as a raw material for chemical products instead of petroleum. The scientists have published their findings in the journal Science.

The chemical industry is facing major challenges: for reasons of CO2 neutrality, circular economy, and geopolitical instability, there is a desire to move away from petroleum and other fossil materials as raw materials for the production of high-quality chemicals. But how will molecular building blocks for essential medicines, for example, be obtained in the future?

X-ray four-wave mixing captures elusive electron interactions inside atoms and molecules

Scientists at the X-ray free-electron laser SwissFEL have realized a long-pursued experimental goal in physics: to show how electrons dance together. The technique, known as X-ray four-wave mixing, opens a new way to see how energy and information flow within atoms and molecules. In the future, it could illuminate how quantum information is stored and lost, eventually aiding the design of more error-tolerant quantum devices. The findings are reported in Nature.

Much of the behavior of matter arises not from electrons acting alone, but from the ways they influence each other. From chemical systems to advanced materials, their interactions shape how molecules rearrange, how materials conduct or insulate and how energy flows.

In many quantum technologies —not least quantum computing—information is stored in delicate patterns of these interactions, known as coherences. When these coherences are lost, information disappears—a process known as decoherence. Learning how to understand and ultimately control such fleeting states is one of the major challenges facing quantum technologies today.

A Strange State of Matter Behaves Very Differently Under Even Weak Magnetism

An Auburn University study finds that magnetic fields can guide electrons in plasma much like traffic signals, giving researchers new ways to control how dust particles form. Picture a glowing cloud that looks like a neon sign, except it holds countless microscopic dust particles suspended in spa

A Nearby Galaxy Is Being Torn Apart by Its Own Supermassive Black Hole

A nearby galaxy is launching an enormous stream of super-heated gas, driven by a precessing jet from its central black hole. University of California, Irvine astronomers report that they have identified the largest known stream of super heated gas ever seen flowing out of a galaxy. The outflow is c

A Simple Silver Fix May Finally Stop Solid-State Batteries From Cracking

A nanoscale silver coating could be the key to making ultra-powerful solid-state batteries finally work.

Replacing the liquid electrolyte inside today’s batteries with a solid one could unlock a new generation of rechargeable lithium metal batteries. In theory, these batteries would be safer, store far more energy, and recharge much faster than the lithium-ion batteries now in widespread use. Scientists and engineers have been chasing this goal for decades, but progress has been slowed by a persistent flaw. Solid, crystal-based electrolytes tend to develop microscopic cracks that gradually spread during repeated charging and use, eventually causing the battery to fail.

A thin silver layer with a big impact.

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