Phys.org May 28, 2018 The magnetization of a material is associated with the spatial ordering of the spins of its constituent particles. An international team of researchers (Brazil, Austria) demonstrated that light resonant with the band gap forces the antiferromagnetic semiconductor EuSe to enter ferromagnetic alignment in the picosecond timescale. By increasing the light intensity, the whole of the illuminated region can be fully magnetized… read more. TECHNICAL ARTICLE
Researchers develop electronic skins that wirelessly activate fully soft robots
Phys.org June 01, 2018 Skin-like electronic system proposed by researchers in South Korea consists of two-part electronic skins (e-skins) that are designed to perform wireless inter-skin communication for untethered, reversible assembly of driving capability. The physical design of each e-skin features minimized inherent hardness in terms of thickness, weight, and fragmented circuit configuration. The e-skin pair can be softly integrated into separate soft body frames (robot and human), wirelessly interact with each other, and then activate and control the robot. The design is highly compact and shows that the embedded e-skin can equally share the fine soft motions of the […]
The right squeeze for quantum computing
Phys.org June 01, 2018 Inherent properties of photons in light are used for encoding information as quantum bits into a light beam by digitizing patterns of the electromagnetic field. “Squeezing” light is used to reduce errors from light waves during quantum computation. Researchers in Japan have developed a theoretical model that uses both the properties of quantum bits and the modes of the electromagnetic field in which they exist. The approach involves squeezing light by removing error-prone quantum bits when quantum bits cluster together. According to the researchers this model is 10 billion times more tolerant to errors than current […]
Shake-up to US graduate education needed, panel warns
Physics World June 01, 2018 A report published on 29 May by the National Academies of Sciences, Engineering, and Medicine calls for increased emphasis on teaching and mentoring of students as well as recognition that increasing numbers of graduate students will find careers outside of academia. A panel of 17-strong held focus groups with students, faculty members, university administrators, industry leaders, and policymakers. The report lists characteristics of ideal graduate education and a list of core competencies that all Master’s degree and PhD students should develop. These include developing a broad technical literacy coupled with deep specialization in an area of […]
Time crystals may hold secret to coherence in quantum computing
Science Daily May 29, 2018 A time crystal is a structure that does not repeat in space, like normal three-dimensional crystals such as snowflakes or diamonds, but in time. In practice this means that crystals constantly undergo spontaneous change, breaking the symmetry of time by achieving a self-sustaining oscillation. An international team of researchers (Finland, UK, Russia) has demonstrated quasi-crystals by studying the Bose-Einstein condensation of magnons in superfluid Helium-3. They observed the time quasicrystal and its transition to a superfluid time crystal… read more. TECHNICAL ARTICLE
Wood to supercapacitors
Nanowerk May 24, 2018 Researchers in China have developed an economical and sustainable method for the synthesis of ultrathin carbon nanofiber (CNF) aerogels from the wood‐based nanofibrillated cellulose aerogels via a catalytic pyrolysis process. They demonstrated that wood‐derived CNF aerogels exhibit excellent electrical conductivity, a large surface area, and potential as a binder‐free electrode material for supercapacitors. The results suggest great promise in developing new families of carbon aerogels based on the controlled pyrolysis of economical and sustainable nanostructured precursors… read more. TECHNICAL ARTICLE
Top 10 Science and Technology Innovations for the Week of June 1, 2018
01. Environmental noise paradoxically preserves the coherence of a quantum system 02. Magnetic Cloak Without Superconductors 03. Antiferromagnetic materials allow for processing at terahertz speeds 04. Methodology for discovering common principles governing complex systems 05. Moisture-powered electronics 06. Switching with molecules for pioneering electro-optical devices 07. How can you tell if a quantum memory is really quantum? 08. Tunable diamond string may hold key to quantum memory 09. Scientists discover new magnetic element 10. This Has Got to Be One of The Most Beautiful And Powerful Climate Change Visuals We’ve Ever Seen And others… All Scientific Research Funded by NASA […]
All Scientific Research Funded by NASA Is Available For Free
Science Alert May 26, 2018 It was a particularly special moment when NASA announced open access to PubSpace in 2016. The public can access NASA-funded research articles in it by searching for whatever they’re interested in, or by just browsing all the NASA-funded papers. Patents and material governed by personal privacy, proprietary, or security laws are exempt from having to be included in PubSpace… read more.
Antiferromagnetic materials allow for processing at terahertz speeds
Science Daily May 24, 2018 An international team of researchers (Czech Republic, Germany, UK, Switzerland, USA – Texas A&M, Saudi Arabia) has demonstrated at room temperature that the speed of reversible electrical writing in a memory device can be scaled up to terahertz using an antiferromagnet. A current-induced spin-torque mechanism is responsible for the switching in our memory devices throughout the 12-order-of-magnitude range of writing speeds from hertz to terahertz. The work opens the path toward the development of memory-logic technology reaching the terahertz band… read more. Open Access TECHNICAL ARTICLE 1 , TECHNICAL ARTICLE 2
An elastic fiber filled with electrodes set to revolutionize smart clothes
Science Daily May 25, 2018 Using thermal drawing researchers in Switzerland created hundreds‐of‐meters long multimaterial optical and electronic fibers and devices that can sustain up to 500% elastic deformation before recovering their initial shape. The fibers can detect even the slightest pressure and strain that makes them perfect for applications in smart clothing and prostheses, and for creating artificial nerves for robots… read more. TECHNICAL ARTICLE