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Science

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Materials Science, Advanced Photon Source (APS), Center for Nanoscale Materials (CNM), Nanoscience, Surface & interface studies, Synchrotron Radiation, Synchrotron instruments & techniques, X-ray imaging & holography, X-ray scattering & detection

Single-Angle Ptychography Allows 3D Imaging of Stressed Materials

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Scientists have used a new X-ray diffraction technique called Bragg single-angle ptychography to get a clear picture of how planes of atoms shift and squeeze under stress.

Science

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Nanomagnets, small electronics, Data Storage, Magnetization, Vortex, antivortex, vortex-antivortex pair, Smiljan Vojkovic, Vagson L. Carvalho-Santos, Jakson M. Fonseca, Alvaro Nunez, Universidade Federal de Vicosa , Universidad de Chile, Journal of Applied Physics, Universidad Catolica de Chile, Campus San Joaquín, Instituto Federal de Educacao, Ciencia

Manipulating Magnetic Textures

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While the ability to easily control the magnetic properties of small electronic systems is highly desirable for future small electronics and data storage, an effective solution has proven to be extremely elusive. But now, a group of researchers from universities in Chile and Brazil are reporting this week in the Journal of Applied Physics, a simple way to gain control of magnetism that starts by controlling the shape of the systems.

Science

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Spintronics, magnetic tunnel junction , MRAM, magnetoresistive random access memories, giant tunnel magnetoresistance, tunnel barrier, nanoscale insulating layer, Semiconducting, direct sputtering, Hiroaki Sukegawa, Yushi Kato, Mohamed Belmoubarik, Pohan Cheng, Tadaomi Daibou, Naoharu Shimomura, Yuuzo Kamiguchi, Junichi Ito, Hiroaki Yoda, Tadakatsu Ohkubo, S

Spintronic Technology Advances with Newly Designed Magnetic Tunnel Junctions

Magnetic tunnel junctions (MTJs) have played a central role in spintronic devices, and researchers are working to improve their performance. A prominent achievement that accelerated the technology's practical applications was the realization of giant tunnel magnetoresistance (TMR) ratios by using rock-salt type MgO crystalline barrier. In this week's Applied Physics Letters, researchers have succeeded in applying MgGa2O4 to a tunnel barrier, the core part of an MTJ, as an alternative material to more conventional insulators.

Science

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fracking, capillary rise, Hydraulic Fracturing, hydraulic fracturing fluids, Lucas-Washburn model, Capillary, nano-capillary, Anqi Shen, Yikun Liu, Xiaohui Qiu, Yongjun Lu, Shuang Liang, Northeast Petroleum University, Langfang Branch of Petrochina Exploration and Development , Applied Physics Letters

A New Model for Capillary Rise in Nano-Channels Offers Insights Into Improved Hydraulic Fracturing (Fracking)

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With fracking, scientists have calculated the expected level of capillary rise with the Lucas-Washburn equation, a mathematical model whose earliest parameters were first devised nearly a century ago. The challenge, however, is that that the equation has not been completely accurate in predicting the actual rise observed in nano-capillary laboratory experiments. Researchers studying this deviation describe their findings this week in the journal Applied Physics Letters.

Medicine

Science

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graphene defects, artificial skin, artificial ski, Ultracapacitors, ultraca, Physics

Self-Healing Graphene Holds Promise for Artificial Skin in Future Robots

The study offers a novel solution where a sub-nano sensor uses graphene to sense a crack as soon as it starts nucleation, or after the crack has spread a certain distance. This technology could quickly become viable for use in the next generation of electronics.

Science

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Quantum Dots, Lasers, Technology, nanotechnnology, Chemistry, Materials

‘Flying Saucer’ Colloidal Quantum Dots Produce Brighter, Better Lasers

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A multi-institutional team of researchers from Canada and the US has demonstrated steady state lasing with solution-processed nanoparticles called “colloidal quantum dots,” an important step on the path to improving laser tools for fiber optics, video projectors and more accurate medical testing technology. The work is reported today in a paper for the journal Nature.

Science

Channels:

Laser, Quantum Dot, Nanoscience, Nanotechnology

‘Flying Saucer’ Quantum Dots Hold Secret to Better, Brighter Lasers

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Vanderbilt University chemists collaborated in research that ‘squashes’ the shape of nanoparticles to create inexpensive lasers that continuously emit light in a customizable rainbow of colors.

Science

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haze, nanofibre, air filter , Permeability

NUS Engineering Team Develops Novel Nanofibre Solution for Clean, Fresh Air

A research team from the National University of Singapore has successfully concocted a novel nanofibre solution that creates thin, see-through air filters that can remove up to 90 per cent of PM2.5 particles and achieve high air flow of 2.5 times better than conventional air filters.

Science

Channels:

Chemistry, Nanomaterials, gold nanoparticles, Silicon, wearable electronic devices, Flexible Electronics, Substrates, Polymer Surfaces, Photoelectrochemical oxidation , single crystal

Research Leads to a Golden Discovery for Wearable Technology

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Writing in the March 17 issue of the journal Science, Missouri University of Science and Technology researchers say they have developed a way to “grow” thin layers of gold on single crystal wafers of silicon, remove the gold foils, and use them as substrates on which to grow other electronic materials.

Science

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Battery, lithim-ion, battery safety, Battery science, Headphones, Hoverboard, Lithium, lithium battery, battery failure, Battery manufacturing, battery materials

Battery Expert on Lithium-ion Safety and Exploding Electronics







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