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Shrinking iron films strengthens laser-driven demagnetization

From photos and videos to documents, vast amounts of data are stored on hard drives in large data centers. These devices use tiny magnetic regions whose orientation determines the information stored. But how could data be ...

Electrical sliding switches graphene between magnetic states

In a discovery that could offer a new way to control quantum properties in two-dimensional materials, researchers at Cornell have found that electrically sliding the layers of ultrathin graphene can switch the material between ...

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Carbon nanotube foams reveal a new kind of mechanical memory
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Electron and photon beams drive same gold-forming reaction toward different nanoscale structures
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Compact optical screen could pave the way for cheaper infrared cameras
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Light lets microswimmers switch between bacteria-like and algae-like propulsion
Nanophysics
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Tiny 'whirlpools' discovered in atom-thin semiconductor
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Ultrathin silicon structures can tune mid-IR light in billionths of a second
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Superconductivity
Quantum sensor loop design could improve magnetic measurements for medicine and communications
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A dinosaur fossil that looks like a mini T. rex just sold for a giant $47 million
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Avian influenza threatens vulture populations worldwide
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Radio waves drive a fusion plasma current that could help reactors run continuously
Environment
Greenhouse gases hit record highs, yet again
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New converter could bridge light wavelength gap in quantum communications
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Scientists reveal the staggering number of bat deaths at wind turbines
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Human and chimpanzee leaders share a taste for risk
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Space Exploration
Perseverance offers clues to protect crews from ultrafine Mars dust
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Earth may have formed much of its water as the planet grew
Bio & Medicine
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How defects make permanent magnets even more efficient

Rare-earth magnets are essential for electric motors in vehicles, drones, and trains, forming the backbone of modern, environmentally friendly mobility. These are not simple blocks of metal, but carefully engineered materials ...