Condensed Matter

1911 Submissions

[32] viXra:1911.0521 [pdf] submitted on 2019-11-30 12:37:24

Perovskite Nanocrystals Durability

Authors: George Rajna
Comments: 46 Pages.

Perovskite nanocrystals hold promise for improving a wide variety of optoelectronic devices-from lasers to light emitting diodes (LEDs)-but problems with their durability still limit the material's broad commercial use. [30] KU Leuven researchers from the Roeffaers Lab and the Hofkens Group have now put forward a very promising direct X-ray detector design, based on a rapidly emerging halide perovskite semiconductor, with chemical formula Cs2AgBiBr6. [29] Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have proven that incoming light causes the electrons in warm perovskites to rotate, thus influencing the direction of the flow of electrical current. [28] Self-assembly and crystallisation of nanoparticles (NPs) is generally a complex process, based on the evaporation or precipitation of NP-building blocks. [27] New nanoparticle-based films that are more than 80 times thinner than a human hair may help to fill this need by providing materials that can holographically archive more than 1000 times more data than a DVD in a 10-by-10-centimeter piece of film. [26] Researches of scientists from South Ural State University are implemented within this area. [25] Following three years of extensive research, Hebrew University of Jerusalem (HU) physicist Dr. Uriel Levy and his team have created technology that will enable computers and all optic communication devices to run 100 times faster through terahertz microchips. [24] When the energy efficiency of electronics poses a challenge, magnetic materials may have a solution. [23]
Category: Condensed Matter

[31] viXra:1911.0519 [pdf] submitted on 2019-11-30 13:59:45

Scratching Perovskite Surface

Authors: George Rajna
Comments: 48 Pages.

"These perovskite surfaces are much more dynamic than we previously anticipated," said Stecker. [31] Perovskite nanocrystals hold promise for improving a wide variety of optoelectronic devices—from lasers to light emitting diodes (LEDs) - but problems with their durability still limit the material's broad commercial use. [30] KU Leuven researchers from the Roeffaers Lab and the Hofkens Group have now put forward a very promising direct X-ray detector design, based on a rapidly emerging halide perovskite semiconductor, with chemical formula Cs2AgBiBr6. [29] Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have proven that incoming light causes the electrons in warm perovskites to rotate, thus influencing the direction of the flow of electrical current. [28]
Category: Condensed Matter

[30] viXra:1911.0474 [pdf] submitted on 2019-11-28 04:35:32

Van der Waals Single Crystals

Authors: George Rajna
Comments: 52 Pages.

Heterostructures with magnetism and topology (geometry) are promising materials to realize exotic topological quantum states. [35] Topological materials have become a hot topic in quantum materials research, as they have potential applications for quantum information and spintronics. [34] The team utilized analytical and ab-initio theories to establish a link between this spin engine concept and room-temperature experiments on a solid-state spintronic device called a magnetic tunnel junction (MTJ). [33] Scientists at Tokyo Institute of Technology proposed new quasi-1-D materials for potential spintronic applications, an upcoming technology that exploits the spin of electrons. [32] They do this by using "excitons," electrically neutral quasiparticles that exist in insulators, semiconductors and in some liquids. [31] Researchers at ETH Zurich have now developed a method that makes it possible to couple such a spin qubit strongly to microwave photons. [30] Quantum dots that emit entangled photon pairs on demand could be used in quantum communication networks. [29] Researchers successfully integrated the systems-donor atoms and quantum dots. [28] A team of researchers including U of A engineering and physics faculty has developed a new method of detecting single photons, or light particles, using quantum dots. [27] Recent research from Kumamoto University in Japan has revealed that polyoxometalates (POMs), typically used for catalysis, electrochemistry, and photochemistry, may also be used in a technique for analyzing quantum dot (QD) photoluminescence (PL) emission mechanisms. [26] Researchers have designed a new type of laser called a quantum dot ring laser that emits red, orange, and green light. [25]
Category: Condensed Matter

[29] viXra:1911.0424 [pdf] submitted on 2019-11-25 07:33:34

Worldwide Security Service

Authors: George Rajna
Comments: 34 Pages.

Terahertz security cameras-currently employed in 18 countries including many major airports and the LA Metro-scan passengers for concealed weapons or contraband in their clothing from up to 10 meters away, operating on an entirely passive, non-invasive basis. [19] Using a single pixel camera and Terahertz electromagnetic waves, a team of Physicists at the University of Sussex have devised a blueprint which could lead to the development of airport scanners capable of detecting explosives. [18] The detectors created by ATI researchers are able to achieve high sensitivity levels that strongly compete with current technologies, while still operating at low voltages, as well as over the whole X-ray energy range spectrum. [17] There's nothing quite like an ice cream on a hot day, and eating it before it melts too much is part of the fun. [16] Studying the fleeting actions of electrons in organic materials will now be much easier, thanks to a new method for generating fast X-rays. [15] In a laboratory at the University of Rochester, researchers are using lasers to change the surface of metals in incredible ways, such as making them super water-repellent without the use of special coatings, paints, or solvents. [14] The interaction of high-power laser light sources with matter has given rise to numerous applications including; fast ion acceleration; intense X-ray, gamma-ray, positron and neutron generation; and fast-ignition-based laser fusion. [13]
Category: Condensed Matter

[28] viXra:1911.0405 [pdf] submitted on 2019-11-24 08:57:29

Nanoelectronics Simulation Booster

Authors: George Rajna
Comments: 48 Pages.

Two research groups from ETH Zurich have developed a method that can simulate nanoelectronics devices and their properties realistically, quickly and efficiently. [28] Dispersible electrodes based on gold-coated magnetic nanoparticles modified with DNA can detect microRNA in unprocessed blood samples at extremely low concentrations and over a broad range-a first for sensors of this kind. [27] Engineers at the University of California San Diego have developed neutrophil "nanosponges" that can safely absorb and neutralize a variety of proteins that play a role in the progression of rheumatoid arthritis. [26] An international team of researchers has determined the function of a new family of proteins associated with cancer and autism. [25] In 2016, when we inaugurated our new IBM Research lab in Johannesburg, we took on this challenge and are reporting our first promising results at Health Day at the KDD Data Science Conference in London this month. [24] The research group took advantage of a system at SLAC's Stanford Synchrotron Radiation Lightsource (SSRL) that combines machine learning-a form of artificial intelligence where computer algorithms glean knowledge from enormous amounts of data-with experiments that quickly make and screen hundreds of sample materials at a time. [23] Researchers at the UCLA Samueli School of Engineering have demonstrated that deep learning, a powerful form of artificial intelligence, can discern and enhance microscopic details in photos taken by smartphones. [22] Such are the big questions behind one of the new projects underway at the MIT-IBM Watson AI Laboratory, a collaboration for research on the frontiers of artificial intelligence. [21]
Category: Condensed Matter

[27] viXra:1911.0404 [pdf] submitted on 2019-11-24 09:17:42

Heat Create Nanostructured Metals

Authors: George Rajna
Comments: 43 Pages.

Scientists have developed a new approach for making metal-metal composites and porous metals with a 3-D interconnected "bicontinuous" structure in thin films at size scales ranging from tens of nanometers to microns. [27] A solid can serve as a medium for heat and sound wave interactions just like a fluid does for thermoacoustic engines and refrigerators - resulting in leak-free machines that can stay operating longer. [26] Like watchmakers choosing superior materials to build a fine timepiece, physicists at the Centre for Quantum Technologies (CQT) at the National University of Singapore have singled out an atom that could allow them to build better atomic clocks. [25]
Category: Condensed Matter

[26] viXra:1911.0399 [pdf] submitted on 2019-11-23 00:23:31

Single Molecule-Based Electronic Devices

Authors: George Rajna
Comments: 64 Pages.

In a paper to be published in the forthcoming issue of Nano, a group of researchers from the Shenyang Jianzhu University in China has provided an overview of single-molecule electronic devices, including molecular electronic devices and electrode types. [41] A team at Osaka University has created single-molecule nanowires, complete with an insulation layer, up to 10 nanometers in length. [40] Using optical and electrical measurements, a two-dimensional anisotropic crystal of rhenium disulfide was found to show opposite piezoresistant effects along two principle axes, i.e. positive along one axis and negative along another. [39]
Category: Condensed Matter

[25] viXra:1911.0394 [pdf] submitted on 2019-11-23 04:46:50

4-D Imaging with Liquid Crystal

Authors: George Rajna
Comments: 63 Pages.

4-D imaging, which adds information on light polarization, could open up even more possibilities, but usually the equipment is bulky, expensive and complicated. [40] Researchers have developed a combination of commercially available hardware and open-source software, named PySight, which improves rapid 2-D and 3-D imaging of the brain and other tissues. [39] A University of Nottingham academic has won a prestigious five-year fellowship to explore the use of harmless sound waves to view deep inside living cells to aid early diagnose in diseases such as cancer. [38]
Category: Condensed Matter

[24] viXra:1911.0391 [pdf] submitted on 2019-11-23 06:02:26

Newspapers Grow Carbon Nanotubes

Authors: George Rajna
Comments: 68 Pages.

A research collaboration between Rice University and the Energy Safety Research Institute (ESRI) at Swansea University has found that old newspapers can be used as a low cost, eco-friendly material on which to grow single walled carbon nanotubes on a large scale. [45] The ever-more-humble carbon nanotube may be just the device to make solar panels—and anything else that loses energy through heat—far more efficient. [44] When traversing a solid material such as glass, a light wave can deposit part of its energy in a mechanical wave, leading to a color change of the light. [43]
Category: Condensed Matter

[23] viXra:1911.0385 [pdf] submitted on 2019-11-22 10:08:38

Twistable Graphene's Symmetry

Authors: George Rajna
Comments: 73 Pages.

A recent study from the labs of James Hone (mechanical engineering) and Cory Dean (physics) demonstrates a new way to tune the properties of two-dimensional (2-D) materials simply by adjusting the twist angle between them. [46]
Category: Condensed Matter

[22] viXra:1911.0363 [pdf] submitted on 2019-11-21 13:12:29

Magnetic Wave Under Control

Authors: George Rajna
Comments: 47 Pages.

The Cracow-based analyses also suggest that the magnetic phenomena occurring in magnonic crystals are more complex than previously predicted. [31] McHenry's group, in collaboration with the National Energy Technology Laboratory (NETL), NASA Glenn Research Center, and North Carolina State University, are designing a two and half kilowatt motor that weighs less than two and half kilograms. [30] Single-molecule magnets (SMMs) have been attracting a lot of attention recently. This is because of the increased demand for faster, longer-lasting and lower-energy IT systems, and the need for higher data storage capacity. [29] Researchers have discovered that using an easily made combination of materials might be the way to offer a more stable environment for smaller and safer data storage, ultimately leading to miniature computers. [28]
Category: Condensed Matter

[21] viXra:1911.0360 [pdf] submitted on 2019-11-21 17:20:43

Mechanism of High Temperature Superconductivity the BCS Theory and a New Electron Pairing Medium

Authors: Tiege Zhou
Comments: 16 Pages.

High temperature superconductivity, BCS theory and the mechanism of high temperature superconductivity are introduced. The author proposed, for the first time, the change of the electron cloud ions can be used as a new medium for electron pairing. Calculation results are given. The results show that the frequency of the change of the electron cloud is close to (and higher than at normal pressures) the frequency of the lattice vibration. It is possible to explain the phenomenon of high temperature superconductivity by using the change of electron cloud instead of lattice vibration.
Category: Condensed Matter

[20] viXra:1911.0302 [pdf] submitted on 2019-11-17 14:40:21

A New Hamiltonian Model of the Fibonacci Quasicrystal Using Non-Local Interactions: Simulations and Spectral Analysis

Authors: Amrik Sen, Carlos Castro
Comments: 16 Pages. Submitted to EPJB

This article presents a novel Hamiltonian architecture based on vertex types and empires for demonstrating the emergence of aperiodic order (quasicrystal growth) in one dimension by a suitable prescription for breaking translation symmetry. At the outset, the paper presents different algorithmic, geometrical, and algebraic methods of constructing empires of vertex configurations of a given quasi- lattice. These empires have non-local scope and form the building blocks of the new lattice model. This model is tested via Monte Carlo simulations beginning with randomly arranged N tiles. The simulations clearly establish the Fibonacci configuration, which is a one dimensional quasicrystal of length N, as the final relaxed state of the system. The Hamiltonian is promoted to a matrix operator form by performing dyadic tensor products of pairs of interacting empire vectors followed by a summation over all permissible configurations. A spectral analysis of the Hamiltonian matrix is performed and a theoretical method is presented to find the exact solution of the attractor configuration that is given by the Fibonacci chain as predicted by the simulations. Finally, a precise theoretical explanation is provided which shows that the Fibonacci chain is the most probable ground state. The proposed Hamiltonian is a one dimensional model of quasicrystal growth.
Category: Condensed Matter

[19] viXra:1911.0295 [pdf] submitted on 2019-11-17 01:09:59

Artificial Robot Muscles

Authors: George Rajna
Comments: 49 Pages.

Artificial muscles will power the soft robots and wearable devices of the future. But more needs to be understood about the underlying mechanics of these powerful structures in order to design and build new devices. [28] Researchers at the Okinawa Institute of Science and Technology have recently proposed a neurorobotics approach that could aid the development of robots with advanced communication capabilities. [27] Now, a team of scientists at MIT and elsewhere has developed a neural network, a form of artificial intelligence (AI), that can do much the same thing, at least to a limited extent: It can read scientific papersand render a plain-English summary in a sentence or two. [26] To address this gap in the existing literature, a team of researchers at SRI International has created a human-AI image guessing game inspired by the popular game 20 Questions (20Q), which can be used to evaluate the helpfulness of machine explanations. [25]
Category: Condensed Matter

[18] viXra:1911.0292 [pdf] submitted on 2019-11-17 04:49:49

Nanoscale Magnetic Tuning

Authors: George Rajna
Comments: 52 Pages.

In collaboration with colleagues from the Leibniz Institute for Solid State and Materials Research Dresden (IFW) and the University of Glasgow, physicists from the German research center Helmholtz-Zentrum Dresden-Rossendorf (HZDR) are working to produce engineered magnetic nanostructures and to tailor material properties at the nanoscale. [30] Manipulating nanoscale light in scanning tunneling microscope junctions is attained by nanofabrication of gold tips using a focused ion beam technique. [29] Researchers at Tokyo Tech have developed a nanosized container bearing photoswitches that takes up hydrophobic compounds of various size and shape in water and subsequently releases them quantitatively by non-invasive light stimulus. [28] By studying how electrons in two-dimensional graphene can literally act like a liquid, researchers have paved the way for further research into a material that has the potential to enable future electronic computing devices that outpace silicon transistors. [27] This research is a therefore a step towards basic and technological research into 3-D analogues of QSH insulators, and may ultimately lead to new electronic and spintronic technologies. [26] Topological insulators (TIs) host exotic physics that could shed new light on the fundamental laws of nature. [25] A new study by scientists from the University of Bristol brings us a significant step closer to unleashing the revolutionary potential of quantum computing by harnessing silicon fabrication technology to build complex on-chip quantum optical circuits. [24] Two teams of scientists from the Technion-Israel Institute of Technology have collaborated to conduct groundbreaking research leading to the development of a new and innovative scientific field: Quantum Metamaterials. [23]
Category: Condensed Matter

[17] viXra:1911.0290 [pdf] submitted on 2019-11-17 05:26:04

Carbon Nanotubes Application

Authors: George Rajna
Comments: 61 Pages.

An international team of scientists led by researchers from the Laboratory of Nanomaterials at the Skoltech Center for Photonics and Quantum Materials (CPQM) has rationally designed a novel p-type flexible transparent conductor using single-walled carbon nanotubes. [39] Scientists at Texas Heart Institute (THI) and Rice University have used biocompatible fibres made of carbon nanotubes (CNTs) as electrical bridges to restore conductivity to damaged hearts. [38] A team of researchers from China, the U.S. and Japan has developed a way to strengthen graphene-based membranes intended for use in desalination projects-by fortifying them with nanotubes. [37] The team arrived at their results by imaging gold nanoparticles, with diameters ranging from 2 to 5 nanometres, via aberration corrected scanning transmission electron microscope. [36] Nanoparticles of less than 100 nanometres in size are used to engineer new materials and nanotechnologies across a variety of sectors. [35] For years, researchers have been trying to find ways to grow an optimal nanowire, using crystals with perfectly aligned layers all along the wire. [34] Ferroelectric materials have a spontaneous dipole moment which can point up or down. [33] Researchers have successfully demonstrated that hypothetical particles that were proposed by Franz Preisach in 1935 actually exist. [32] Scientists from the Department of Energy's SLAC National Accelerator Laboratory and the Massachusetts Institute of Technology have demonstrated a surprisingly simple way of flipping a material from one state into another, and then back again, with single flashes of laser light. [31] Materials scientists at Duke University computationally predicted the electrical and optical properties of semiconductors made from extended organic molecules sandwiched by inorganic structures. [30]
Category: Condensed Matter

[16] viXra:1911.0286 [pdf] submitted on 2019-11-16 08:33:32

Graphene Softer if You Bend

Authors: George Rajna
Comments: 78 Pages.

To make the bent graphene, Yu fabricated individual atomic layers of hexagonal boron nitride, another 2-D material, into atomic-scale steps, then stamped the graphene over the top. [48] "The junctions were reproducible over several devices and operated from 20 Kelvin up to room temperature. Our approach represents a simple but powerful strategy for the future integration of molecule-based functions into stable and controllable nanoelectronic devices." [47] The team has turned graphene oxide (GO) into a soft, moldable and kneadable play dough that can be shaped and reshaped into free-standing, three-dimensional structures. [46] A team of researchers based at The University of Manchester have found a low cost method for producing graphene printed electronics, which significantly speeds up and reduces the cost of conductive graphene inks. [45] Graphene-based computer components that can deal in terahertz "could be used, not in a normal Macintosh or PC, but perhaps in very advanced computers with high processing rates," Ozaki says. This 2-D material could also be used to make extremely high-speed nanodevices, he adds. [44] Printed electronics use standard printing techniques to manufacture electronic devices on different substrates like glass, plastic films, and paper. [43] A tiny laser comprising an array of nanoscale semiconductor cylinders (see image) has been made by an all-A*STAR team. [42] A new instrument lets researchers use multiple laser beams and a microscope to trap and move cells and then analyze them in real-time with a sensitive analysis technique known as Raman spectroscopy. [41]
Category: Condensed Matter

[15] viXra:1911.0261 [pdf] submitted on 2019-11-15 05:05:34

Cooper Pair Metal

Authors: George Rajna
Comments: 77 Pages.

The findings describe an entirely new state of matter, the researchers say, that will require a new theoretical explanation. [51] This area of research aims to greatly accelerate the study of spintronics with organic molecules. [50] In a recent study, researchers at the NASA Ames Research Center have demonstrated that nanoscale vacuum channel transistors can be fabricated on silicon carbide wafers. [49] Titanium oxide (TiO2) nanofibers can have various applications, such as in catalyzers and filters. [48] Today, scientists report progress in making versions of these nanoparticles that could someday give built-in night vision to humans. [47] A new piece of a difficult puzzle-the nature of memory-fell into place this week with a hint at how brain cells change structure when they learn something. [46] Researchers at the University of Alberta have found an important protein in the cells of a deadly infectious parasite, opening the door to less harmful treatment for millions of people suffering from diseases like sleeping sickness in Africa and Chagas disease in South America. [45] The remarkable ability of a small Australian sea snail to produce a colourful purple compound to protect its eggs is proving even more remarkable for its potential in a new anti-cancer pharmaceutical. [44] Gene editing technology is a technology that eliminates the underlying causes of and treats diseases by removing specific genesor editing genes to restore their normal function. In particular, CRISPR gene editing technology is now commonly used for immunotherapy by correcting the genes of immune cells to induce them to attack cancer cells selectively. [43] Bioengineers and biophysicists from the have discovered that the toxicity of nanoparticles depends more on their size and the extent to which their surface area is charged than on their chemical composition. [42]
Category: Condensed Matter

[14] viXra:1911.0216 [pdf] submitted on 2019-11-12 03:15:37

Ultrafast Laser Pulses Produces

Authors: George Rajna
Comments: 40 Pages.

But in new experiments by physicists at MIT and elsewhere, the opposite happens: When a pattern called a charge density wave in a certain material is hit with a fast laser pulse, a whole new charge density wave is created—a highly ordered state, instead of the expected disorder. [27] Scientists from Universität Hamburg have united the two research fields and succeeded in observing the emergence of ions in ultracold atoms. [26] Researchers at the Kirchhoff Institute for Physics of Heidelberg University recently succeeded in verifying so-called non-local quantum correlations between ultracold clouds of rubidium atoms. [25]
Category: Condensed Matter

[13] viXra:1911.0194 [pdf] submitted on 2019-11-11 09:43:35

Metamaterials Reprogram Themselves

Authors: George Rajna
Comments: 25 Pages.

Materials scientists aim to engineer intelligence into the fabric of materials or metamaterials for programmable functions. [15] Researchers at Aalto University have developed new metasurfaces for the arbitrary manipulation of reflected waves, essentially breaking the law to engineer the reflection of a surface at will. [14] In new research, scientists at the University of Minnesota used a first-of-its-kind device to demonstrate a way to control the direction of the photocurrent without deploying an electric voltage. [13] Brown University researchers have demonstrated for the first time a method of substantially changing the spatial coherence of light. [12]
Category: Condensed Matter

[12] viXra:1911.0192 [pdf] submitted on 2019-11-11 10:33:11

Magnetic Anisotropy of Electric Polarization

Authors: George Rajna
Comments: 56 Pages.

Researchers at Kanazawa University controlled the magnetic properties of a metal layer through the electrical polarization of a neighboring metal oxide layer. [34] It is commonplace to be under pressure at the U.S. Department of Energy's Ames Laboratory— that is, if you happen to be a sample of material undergoing investigation by the lab's condensed matter physicists. [33] Associate Professor Justin Ye, head of the Device Physics of Complex Materials group at the University of Groningen, studied superconductivity in a double layer of molybdenum disulfide and discovered new superconducting states. [32]
Category: Condensed Matter

[11] viXra:1911.0161 [pdf] submitted on 2019-11-09 10:23:05

Thorium Superconductivity

Authors: George Rajna
Comments: 30 Pages.

A group of scientists led by Artem Oganov of Skoltech and the Moscow Institute of Physics and Technology, and Ivan Troyan of the Institute of Crystallography of RAS has succeeded in synthesizing thorium decahydride (ThH10), a new superconducting material with the very high critical temperature of 161 kelvins. [20] Scientists at the U.S. Department of Energy's Ames Laboratory have developed a method to accurately measure the "exact edge" or onset at which a magnetic field enters a superconducting material. [19]
Category: Condensed Matter

[10] viXra:1911.0109 [pdf] submitted on 2019-11-06 02:51:53

Accelerating Nano-Engineering

Authors: George Rajna
Comments: 51 Pages.

Researchers from SMART, MIT's research enterprise in Singapore, have made a groundbreaking discovery that allows scientists to "look" at the surface density of dispersed nanoparticles. [31] KAIST researchers have reported the detection of a picosecond electron motion in a silicon transistor. [30] In quantum physics, some of the most interesting effects are the result of interferences. [29] When Nebraska's Herman Batelaan and colleagues recently submitted a research paper that makes the case for the existence of a non-Newtonian, quantum force, the journal asked that they place "force" firmly within quotes. [28]
Category: Condensed Matter

[9] viXra:1911.0108 [pdf] submitted on 2019-11-06 03:10:33

Suspended Layers Superconductor

Authors: George Rajna
Comments: 53 Pages.

Associate Professor Justin Ye, head of the Device Physics of Complex Materials group at the University of Groningen, studied superconductivity in a double layer of molybdenum disulfide and discovered new superconducting states. [32] Researchers from SMART, MIT's research enterprise in Singapore, have made a groundbreaking discovery that allows scientists to "look" at the surface density of dispersed nanoparticles. [31]
Category: Condensed Matter

[8] viXra:1911.0101 [pdf] submitted on 2019-11-06 07:42:24

Magnetic and Superconducting States

Authors: George Rajna
Comments: 54 Pages.

It is commonplace to be under pressure at the U.S. Department of Energy's Ames Laboratory— that is, if you happen to be a sample of material undergoing investigation by the lab's condensed matter physicists. [33] Associate Professor Justin Ye, head of the Device Physics of Complex Materials group at the University of Groningen, studied superconductivity in a double layer of molybdenum disulfide and discovered new superconducting states. [32] Researchers from SMART, MIT's research enterprise in Singapore, have made a groundbreaking discovery that allows scientists to "look" at the surface density of dispersed nanoparticles. [31]
Category: Condensed Matter

[7] viXra:1911.0085 [pdf] submitted on 2019-11-05 03:51:48

Magnetism in Atomic Resolution

Authors: George Rajna
Comments: 48 Pages.

Scientists from the University of Strasbourg, France, in close collaboration with colleagues from research centers in San Sebastián, Spain, and Jülich, Germany, have achieved a breakthrough in detecting the magnetic moments of nanoscale structures. [30] A new material created by Oregon State University researchers is a key step toward the next generation of supercomputers. [29]
Category: Condensed Matter

[6] viXra:1911.0084 [pdf] submitted on 2019-11-05 04:24:58

Transparent LED Screens

Authors: George Rajna
Comments: 59 Pages.

Connecting LEDs with transparent conductive circuits has made it possible to turn glass windows, walls and building exteriors into see-through displays that inform or entertain viewers with videos and images. [38] The new technology can successfully measure heart rate and oxygen saturation. It also has the potential to measure blood pressure and cardiac output, whilst maintaining its flexible and transparent form. [37] Electrical engineers at Duke University have devised a fully print-in-place technique for electronics that is gentle enough to work on delicate surfaces including paper and human skin. [36]
Category: Condensed Matter

[5] viXra:1911.0053 [pdf] submitted on 2019-11-04 10:39:18

Unstable Semiconductors

Authors: George Rajna
Comments: 71 Pages.

Scientists from Cardiff University have, for the first time, spotted previously unseen "instabilities" on the surface of a common compound semiconductor material. [48] In Japan Science and Technology Agency's Strategic Basic Research Programs, Associate Professor Toshiaki Kato and Professor Toshiro Kaneko of the Department of Electronic Engineering, Graduate School of Engineering, Tohoku University succeeded in clarifying a new synthesis mechanism regarding transition metal dichalcogenides (TMD), which are semiconductor atomic sheets having thickness in atomic order. [47]
Category: Condensed Matter

[4] viXra:1911.0051 [pdf] submitted on 2019-11-03 02:27:17

Silicon-Graphene-Germanium Transistor

Authors: George Rajna
Comments: 62 Pages.

With further engineering, the vertical semiconductor-graphene-semiconductor transistor is promising for high-speed applications in future 3-D monolithic integration because of the advantages of atomic thickness, high carrier mobility, and the high feasibility of a Schottky emitter. [37] Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have new experimental evidence and a predictive theory that solves a long-standing materials science mystery: why certain crystalline materials shrink when heated. [36] In a new study now published A team of scientists are seeking to kick-start a wearable technology revolution by creating flexible fibres and adding acids from red wine. [33] An inexpensive way to make products incorporating nanoparticles-such as high-performance energy devices or sophisticated diagnostic tests-has been developed by researchers. [32] Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect with long-range ordered nanocrystal superlattices. [31] The optical tweezer is revealing new capabilities while helping scientists understand HYPERLINK "https://phys.org/tags/quantum+mechanics/" quantum mechanics, the theory that explains nature in terms of subatomic particles. [30] In the perspective, Gabor and Song collect early examples in electron metamaterials and distil emerging design strategies for electronic control from them. [29]
Category: Condensed Matter

[3] viXra:1911.0047 [pdf] submitted on 2019-11-03 03:41:47

Ultraconformable Magnetic Nanosheets

Authors: George Rajna
Comments: 65 Pages.

Syringe-injectable biomaterials, medical devices and engineered tissues have attracted great attention as minimally-invasive implants for diagnosis, therapy and regenerative medicine. [39] Such human-machine interfaces are no longer science fiction, but they still have a way to go before becoming mainstream. [38] With further engineering, the vertical semiconductor-graphene-semiconductor transistor is promising for high-speed applications in future 3-D monolithic integration because of the advantages of atomic thickness, high carrier mobility, and the high feasibility of a Schottky emitter. [37] Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have new experimental evidence and a predictive theory that solves a long-standing materials science mystery: why certain crystalline materials shrink when heated. [36] In a new study now published A team of scientists are seeking to kick-start a wearable technology revolution by creating flexible fibres and adding acids from red wine. [33] An inexpensive way to make products incorporating nanoparticles-such as high-performance energy devices or sophisticated diagnostic tests-has been developed by researchers. [32] Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect with long-range ordered nanocrystal superlattices. [31] The optical tweezer is revealing new capabilities while helping scientists understand HYPERLINK "https://phys.org/tags/quantum+mechanics/" quantum mechanics, the theory that explains nature in terms of subatomic particles. [30]
Category: Condensed Matter

[2] viXra:1911.0046 [pdf] submitted on 2019-11-03 04:42:54

Microrobots Against Radioactive Waste

Authors: George Rajna
Comments: 65 Pages.

The self-propelled microrobots could someday help in the management and remediation of radioactive waste, the researchers say. [40] Syringe-injectable biomaterials, medical devices and engineered tissues have attracted great attention as minimally-invasive implants for diagnosis, therapy and regenerative medicine. [39] Such human-machine interfaces are no longer science fiction, but they still have a way to go before becoming mainstream. [38] With further engineering, the vertical semiconductor-graphene-semiconductor transistor is promising for high-speed applications in future 3-D monolithic integration because of the advantages of atomic thickness, high carrier mobility, and the high feasibility of a Schottky emitter. [37] Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have new experimental evidence and a predictive theory that solves a long-standing materials science mystery: why certain crystalline materials shrink when heated. [36] In a new study now published A team of scientists are seeking to kick-start a wearable technology revolution by creating flexible fibres and adding acids from red wine. [33] An inexpensive way to make products incorporating nanoparticles-such as high-performance energy devices or sophisticated diagnostic tests-has been developed by researchers. [32] Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect with long-range ordered nanocrystal superlattices. [31]
Category: Condensed Matter

[1] viXra:1911.0034 [pdf] submitted on 2019-11-02 05:00:42

Crystals Shrink When Heated

Authors: George Rajna
Comments: 61 Pages.

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have new experimental evidence and a predictive theory that solves a long-standing materials science mystery: why certain crystalline materials shrink when heated. [36] In a new study now published on Science Advances, Junseong Song and colleagues at the departments of Energy Science, Nanostructure Physics, Environmental Science and Materials Science in the Republic of Korea developed an unprecedented structure of the Zintl phase. [35] TSU physicists, working with scientists from Novosibirsk, Krasnoyarsk, Germany and Korea, have discovered new nanomechanical properties of diamonds mined at the Skalnoe deposit of the Popigai astrobleme. [34] A team of scientists are seeking to kick-start a wearable technology revolution by creating flexible fibres and adding acids from red wine. [33] An inexpensive way to make products incorporating nanoparticles-such as high-performance energy devices or sophisticated diagnostic tests-has been developed by researchers. [32] Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect with long-range ordered nanocrystal superlattices. [31] The optical tweezer is revealing new capabilities while helping scientists understand HYPERLINK "https://phys.org/tags/quantum+mechanics/" quantum mechanics, the theory that explains nature in terms of subatomic particles. [30] In the perspective, Gabor and Song collect early examples in electron metamaterials and distil emerging design strategies for electronic control from them. [29] Lawrence Livermore National Laboratory (LLNL) researchers are working to make better electronic devices by delving into the way nanocrystals are arranged inside of them. [28] Self-assembly and crystallisation of nanoparticles (NPs) is generally a complex process, based on the evaporation or precipitation of NP-building blocks. [27]
Category: Condensed Matter