Scandium breaks temperature record for elemental superconductors
Scandium remains a superconductor at temperatures above 30 K, making it the first element known to superconduct at such a high temperature. The record-breaking discovery was made by researchers in...
View ArticleStratospheric effect boosts global warming as carbon dioxide levels rise
The effect of doubling atmospheric carbon dioxide on the climate becomes more pronounced as carbon dioxide levels rise – researchers in the US have shown. This effect, which had not been factored into...
View ArticleScientists propose super-bright light source powered by quasiparticles
A proposed new light source based on plasma accelerators could make it possible to develop super-bright sources as powerful as the most advanced free-electron lasers – but much smaller. If demonstrated...
View ArticleStrange metal is quiet when it comes to shot noise
Noise measurements suggest that a “strange metal” does not conduct electricity via discrete charge carriers, according to researchers in the US and Austria. Doug Natelson at Rice University, Silke...
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Handheld device uses eye-safe retinal spectroscopy to diagnose brain injury
Rapid TBI diagnostics (A) EyeD technology concept; (B) design of the EyeD with a 3D-printed phantom mimicking the optical properties of the eye and allowing acquisition of Raman spectra through an...
View ArticleResearchers grapple with bringing quantum security to the cloud
A new protocol for cloud-computing-based information storage that could combine quantum-level security with better data-storage efficiency has been proposed and demonstrated by researchers in China....
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Portable optical atomic clock makes its commercial debut
Atoms are the world’s most precise timekeepers – so much so that the second is defined as exactly 9 192 631 770 ticks of a caesium-based atomic clock. Commercially-available versions of these...
View ArticleMystery of how dolomite forms could be solved at long last
Dolomite is one of the most abundant carbonate minerals on Earth, but for 200 years geologists have puzzled over how it is formed in such huge quantities. Now, Joonsoo Kim and Wenhao Sun at the...
View ArticleRare electronic states appear in five-layer graphene
Graphene boasts many exceptional properties, and researchers in the US have found yet another one: a rare electronic state called multiferroicity that could double the amount of information stored in...
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Sliding water droplets surprise scientists
(a) Droplets sliding down (l-r) a single fibre, a bundle of two fibres and a bundle of three fibres. A liquid film appears behind each droplet. (b) Horizontal cuts of each system, showing dry fibres in...
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Quantum simulator visualizes large-scale entanglement in materials
How entangled is it? The researchers obtained temperature profiles of their system showing that particles that interact strongly are “hot” (red) and those that interact little are “cold” (blue)....
View ArticleLiquid crystal elastomers make morphing fabric
A new type of fibre reversibly changes its shape in response to temperature and can be spun into threads to make entire morphing garments. Potential applications for the technology include compression...
View ArticleNanoparticles give laser wakefield accelerator a boost to 10 GeV
A highly stable laser wakefield accelerator has been created by Bjorn Manuel Hegelich at the University of Texas at Austin and an international team. Their device uses nanoparticles to put electrons...
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Ultrasound innovations enable pain-free vaccination, monitor muscle dynamics...
The Acoustics 2023 Sydney conference, co-hosted by the Acoustical Society of America and the Australian Acoustical Society, brought together acousticians, researchers, musicians and other experts from...
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Giant skyrmion topological Hall effect appears in a two-dimensional...
Stable skyrmions: First-principles calculations of the skyrmion-stabilizing Dzyaloshinskii–Moriya interaction in pristine (bottom) and oxidized (top) Fe3GaTe2-x enabled the team to understand why the...
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Ultrasound-activated sono-inks could print 3D structures inside the human body
Deep-penetrating acoustic volumetric printing Design model (left), and top-view (centre) and tilt-view (right) photographs of a vessel network (82 x 68 x 1 mm) printed using sono-ink and 3.41 MHz...
View ArticleFrequency comb identifies molecules every 20 nanoseconds
Frequency combs – specialized lasers that act like a measuring stick for light – are commonly used to identify unknown molecules in a sample by detecting which frequencies of light they absorb. Despite...
View ArticleThermal transistor could cool down computer chips
Researchers at the University of California in Los Angeles, US, have invented a thermal transistor that uses an electric field to control the flow of heat. This proof-of-concept device is the first of...
View ArticleAcoustic touch technology helps blind people ‘see’ using sound
Researchers in Australia are developing smart glasses for blind people, using a technology called “acoustic touch” to turn images into sounds. Initial experiments suggest that this wearable spatial...
View ArticleSuperconducting electrode controls spin waves in a magnet
Placing a superconducting electrode on top of a thin magnet makes it possible to manipulate and control so-called “spin waves” within the magnet simply by changing the electrode’s temperature. This...
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