Archive for the ‘materials’ category: Page 22

Nov 20, 2022

What is aerogel? This “magic” material could heal your bones in mere days

Posted by in category: materials

Has Madam Pomfrey’s Skele-Gro finally made its way to the muggle world?

Nov 19, 2022

#NBIC: Now, researchers at MIT, the University of Minnesota, and Samsung have developed a new kind of camera that can detect terahertz pulses rapidly, with high sensitivity, and at room temperature and pressure

Posted by in categories: electronics, materials

What’s more, it can simultaneously capture information about the orientation, or “polarization,” of the waves in real-time, which existing devices cannot.

This information can be used to characterize materials that have asymmetrical molecules or to determine the surface topography of materials.

Nov 16, 2022

Researchers unlock light-matter interactions on sub-nanometer scales, leading to ‘picophotonics’

Posted by in categories: materials, quantum physics

Researchers at Purdue University have discovered new waves with picometer-scale spatial variations of electromagnetic fields that can propagate in semiconductors like silicon. The research team, led by Dr. Zubin Jacob, Elmore Associate Professor of Electrical and Computer Engineering and Department of Physics and Astronomy, published their findings in Physical Review Applied in a paper titled “Picophotonics: Anomalous Atomistic Waves in Silicon.”

“The word microscopic has its origins in the length scale of a micron, which is a million times smaller than a meter. Our work is for matter interaction within the picoscopic regime which is far smaller, where the discrete arrangement of atomic lattices changes light’s properties in surprising ways,” says Jacob.

These intriguing findings demonstrate that natural media host a variety of rich light-matter interaction phenomena at the atomistic level. The use of picophotonic waves in semiconducting materials may lead researchers to design new, functional optical devices, allowing for applications in .

Nov 15, 2022

Researchers cook up a new way to remove microplastics from water

Posted by in categories: engineering, materials

Nov 15, 2022

Interstellar Material Older Than Our Solar System Found in Meteorite Chunk

Posted by in categories: materials, space travel

Nov 14, 2022

Ultra-thin smartphone touchscreens could be printed like a newspaper

Posted by in categories: materials, mobile phones

face_with_colon_three circa 2020.

Scientists in Australia have developed a new type of electronic material that is touch-responsive and just a fraction of the thickness of current smartphone screens. This could see it one day find use in next-generation mobile devices, and because of its incredible thinness and flexibility, could be manufactured at large scale using roll-to-roll (R2R) processing like a printed newspaper.

The breakthrough comes from researchers at RMIT University, who began with a material commonly used in today’s mobile touchscreens called indium-tin oxide. This transparent material is highly conductive but does have its shortcomings, chiefly that it is very brittle, so the team sought to give it better pliability by greatly reducing its thickness.

Continue reading “Ultra-thin smartphone touchscreens could be printed like a newspaper” »

Nov 13, 2022

Excitonic superfluid phase in double bilayer graphene Physics

Posted by in categories: materials, particle physics

face_with_colon_three circa 2017.

Strongly interacting bosons have been predicted to display a transition into a superfluid ground state, similar to Bose–Einstein condensation. This effect is now observed in a double bilayer graphene structure, with excitons as the bosonic particles.

Nov 13, 2022

Research team creates a superfluid in a record-high magnetic field

Posted by in categories: materials, particle physics

Circa 2015 face_with_colon_three

MIT physicists have created a superfluid gas, the so-called Bose-Einstein condensate, for the first time in an extremely high magnetic field. The magnetic field is a synthetic magnetic field, generated using laser beams, and is 100 times stronger than that of the world’s strongest magnets. Within this magnetic field, the researchers could keep a gas superfluid for a tenth of a second—just long enough for the team to observe it. The researchers report their results this week in the journal Nature Physics.

A superfluid is a phase of matter that only certain liquids or gases can assume, if they are cooled to extremely low temperatures. At temperatures approaching absolute zero, cease their individual, energetic trajectories, and start to move collectively as one wave.

Continue reading “Research team creates a superfluid in a record-high magnetic field” »

Nov 12, 2022

Scientists Reproduce Fascinating, Powerful Material Found in Meteorite

Posted by in categories: materials, space

In an unprecedented experiment, two teams of scientists on either sides of the Atlantic have replicated a material that was previously not produced anywhere on Earth.

As NPR reports, the replication of this powerful compound could have huge implications not just for the manufacturing of high-end machinery, but also for international relations to boot.

Called tetrataenite, the primarily iron-and-nickel compound is normally able to cool for millions of years as it tumbles around in asteroids. As a press release out of the University of Cambridge notes, the researchers who worked in tandem with Boston’s Northeastern University found that if they add phosphorous to the mix, they were able to make synthetic tetrataenite.

Nov 11, 2022

Study demonstrates tailored Ising superconductivity in intercalated bulk niobium diselenide

Posted by in categories: materials, quantum physics

When 2D layered materials are made thinner (i.e., at the atomic scale), their properties can dramatically change, sometimes resulting in the emergence of entirely new features and in the loss of others. While new or emerging properties can be very advantageous for the development of new technologies, retaining some of the material’s original properties is often equally important.

Researchers at Tsinghua University, the Chinese Academy of Sciences and the Frontier Science Center for Quantum Information have recently been able to realize tailored Ising superconductivity in a sample of intercalated bulk niobium diselenide (NbSe2), a characteristic of bulk NbSe2 that is typically compromised in . The methods they used, outlined in a paper published in Nature Physics, could pave the way towards the fabrication of 2D thin-layered superconducting materials.

“Atomically thin 2D materials exhibit interesting properties that are often distinct from their bulk materials, which consist of hundreds and thousands of layers,” Shuyun Zhou, one of the researchers who carried out the study, told “However, atomically thin films/flakes are difficult to fabricate, and the emerging new properties are sometimes achieved by sacrificing some other important properties.”

Page 22 of 207First1920212223242526Last