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“#ISOLDE reveals fundamental property of astatine, the rarest element on Earth” The setup used to measure the electron affinity of astatine. A beam of negative astatine ions is sent to a device comprising several components. Laser light (red) is shone on the ions to measure the energy required to extract the extra electron of the…
“#Magnetic memory states go exponential” Researchers from Bar-Ilan University have shown that relatively simple magnetic thin film structures of N crossing ellipses can support two to the power of 2N magnetic states – much greater than previously thought – and demonstrated switching between the states with spin currents. The ability to stabilize and control exponential…
“#Physicists use oscillations of atoms to control a phase transition” Artist’s impression of the phase transition of indium atoms on a silicon crystal controlled by light pulses. Credit: Dr Murat Sivis The goal of ‘femtochemistry’ is to film and control chemical reactions with short flashes of light. Using consecutive laser pulses, atomic bonds can be…
“#Researchers develop computational model to build better capacitors” Graphic highlights how semiconductor properties change as grain size decreases in polycrystalline perovskites with complex defect chemistries. Researchers have developed a model that can be used to help engineers create new energy storage devices for use in a wide range of electronics. Credit: Doug Irving, NC State…
“#Researchers building a harder diamond, called pentadiamonds” Geometric structure of pentadiamond. White and black balls indicate C atoms with four and three adjacent C atoms, respectively. Credit: University of Tsukuba Researchers at the University of Tsukuba used computer calculations to design a new carbon-based material even harder than diamond. This structure, dubbed “pentadiamond” by its…
“#Spider silk can create lenses useful for biological imaging” An image of the spider used in the study and the dome lens generated on its dragline silk. Credit: Cheng-Yang Liu Spiders—what are they good for? The answer, it turns out, is more than just insect control. Spider silk is useful for a variety of biomedical…
“#Researchers catch a wave to determine how forces control granular material properties” The image is a combination of two sets of data from X-ray scans of single crystal sapphire spheres. The reconstructed X-ray Computed Tomography (XRCT) data defines the surface of all 621 grains in the load frame. The far-field X-ray Diffraction (ff-XRD or 3DXRD)…
“#Precise measurement of liquid iron density under extreme conditions” 136 gigapascal (1.36 million atmospheres) and >4000 C. The sound speed and density profiles of the deep-interior of our planet is given by seismological observations. Credit: Assistant Professor Yoichi Nakajima” width=”800″> Our planet has a layered structure of silicate mantle and metallic core. The liquid outer…
“#Study shows optical fields can modify electrons in metal” Coherent photoelectron spectroscopy of optical dressing. Credit: Nature Communications (2020). DOI: 10.1038/s41467-020-16064-4 Pittsburgh research coauthored by team from the Department of Physics and Astronomy reveals that optical fields have the ability to modify electronic properties of a solid. The paper, “Coherent multidimensional photoelectron spectroscopy of ultrafast…