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“#AI used to show how hydrogen becomes a metal inside giant planets” An inexpensive machine-learning potential allowed for the investigation of hydrogen phase transitions for temperatures between 100 and 4000 K, and pressures between 25 and 400 gigapascals, with converged simulation size and time. Credit: @Michele Ceriotti, EPFL Dense metallic hydrogen—a phase of hydrogen which…
“#Devitrification demystified: Scientists show how glass crystallizes in real-time” Softness map in glassy structure. Credit: Rajesh Ganapathy Glass is amorphous in nature—its atomic structure does not involve the repetitive arrangement seen in crystalline materials. But occasionally, it undergoes a process called devitrification, which is the transformation of a glass into a crystal—often an unwanted process…
“#Toward an ultrahigh energy density capacitor” To make the new material, the thin film is first deposited via a pulsed-laser deposition process in this chamber. The bright “plume” you see is the laser hitting the target and depositing the material. Credit: Lane Martin. Capacitors that rapidly store and release electric energy are key components in…
“#A superelastic alloy with a nearly limitless temperature window” Mechanical properties of Fe-Mn-Al-Cr-Ni shape memory alloy system. Credit: Science (2020). DOI: 10.1126/science.abc1590 A team of researchers at Tohoku University has developed a new kind of superelastic alloy with a nearly limitless superelastic window. In their paper published in the journal Science, the group describes the…
“#X-rays indicate that water can behave like a liquid crystal” The schematic of the experiment used to capture the alignment of water molecules by the laser light. By using X-ray lasers, scientists have seen that the water molecules can be aligned for a very short time, forming a liquid crystal. Water molecules that are in…
“#Breaking the absorption limit of silicon toward the short-wavelength infrared wavelength range via strain engineering” Fabrication of 6 × 6 Si NM array devices for strain-controlled stretchable PD. (A) Schematic illustration of device fabrication. RIE, reactive ion etching. (B) Photograph of a fabricated device on PI-coated SiO2/Si substrate and corresponding magnified view of device sections….
“#Improved modelling of nuclear structure in francium aids searches for new physics” Credit: CC0 Public Domain Thanks to researchers from The University of Queensland, we now know with much greater certainty the nuclear magnetic moments of francium atoms. Dr. Ben Roberts, a postdoctoral research fellow in UQ’s School of Mathematics and Physics, said that the…
“#Why microwaving liquids is different from other heating techniques, and how this issue can be resolved” The silver-plated cup helps liquids heat through uniformly in microwaves. Credit: Baoqing Zeng Tea drinkers have been saying it for years. Water heated in a microwave just isn’t the same. Typically, when a liquid is being warmed, the heating…
“#Scientists find new deformation mechanism of bulk metallic glass composites” Credit: CC0 Public Domain Bulk metallic glass composites (BMGCs) containing in-situ formed β-Ti dendrites are promising for many applications. However, it remains challenging to effectively tune their microstructures and mechanical properties for application. Recently, Assoc. Prof. Zhang Long and Prof. Zhang Haifeng from the Institute…
“#Ultra-fast laser-based writing of data to storage devices” Modern life revolves around data, which means that we need new, fast, and energy-efficient methods to read and write data on our storage devices. Optical-based approaches, which use laser pulses to write data instead of magnets, have received considerable attention over the past decade following the development…