Articles tagged with Electrons
A graphene single-electron pump provides a fast enough electron flow to create a current standard, overcoming the Achilles heel of metallic pumps. This innovation marks a major step forward in using graphene to redefine the ampere.
Rice physicists Qimiao Si and Rong Yu discovered a new electronic state in which some electrons become frozen, while others remain mobile, leading to 'bad traffic' on the path to superconductivity. This phase, known as orbital-selective Mott phase, provides clues about the fundamental origins of superconductivity.
The Alpha Magnetic Spectrometer (AMS) collaboration has released the first published results from its experiment on the International Space Station, measuring the ratio of positrons to electrons in cosmic rays with unprecedented precision. This key finding may eventually provide evidence for the existence of dark matter.
Researchers at the University of York and Joint Institute for High Temperatures used a petawatt laser to remove deeply bound electrons from atoms, creating a distinctive plasma state. The experiment aims to further understanding of fusion energy generation, which employs hotter plasmas than the Sun.
Researchers have found that cuprate superconductors, known for carrying electrical current without resistance, cannot be fully explained by the traditional concept of Luttinger's theorem, which states that electrons carry current. This discovery reveals that there must be alternative explanations beyond electron behavior.
Researchers have successfully replicated Feynman's famous double-slit thought-experiment using a gold-coated silicon membrane and a moveable mask. This achievement demonstrates the mysterious properties of electrons, including their ability to produce an interference pattern when fired at the wall one at a time.
Researchers used spectroscopic imaging scanning tunneling microscopy to visualize the electronic properties around individual dopant atoms in an iron-based superconductor. The study found that dopants introduce elongated impurity states that scatter electrons in an asymmetric way, explaining most of the material's unusual properties.
Researchers develop fast and efficient iron-based molecule that splits hydrogen gas into electricity, rivaling commercial catalysts. The breakthrough could make fuel cells more economical, addressing the high cost of platinum used in current systems.
Researchers are exploring X-ray imaging on the attosecond timescale to better understand chemical reactions and interactions. Key findings include the importance of multidimensional nonlinear x-ray spectroscopy and the need for precise beam characteristics.
CREPT will measure energetic electrons and protons in Van Allen Belts, gaining a better understanding of electron microbursts. The instrument demonstrates two new technologies that make it four times faster than its predecessor.
Rutgers physics professors have discovered a new type of order in an exotic uranium-based material, which may lead to enhanced computer displays and data storage systems. The 'hastatic' order could also enable the creation of more powerful superconducting magnets for medical imaging and high-speed transportation.
Researchers at Northwestern University have created an exotic new chemical compound that links two identical tetracationic rings together using a mechanical bond. The compound's stable organic radical properties make it useful for applications in batteries, semiconductors and electronic memory devices.
Researchers applied Deutsch–Märk and Binary-Encounter-Bethe methods to beryllium and its derivatives. The calculations provide improved understanding of electron impact ionization cross sections (EICS) for the ITER fusion chamber.
Research by Rodger Thompson finds that a popular dark energy alternative does not fit newly obtained data on the proton to electron mass ratio. This impact our understanding of the universe's accelerating expansion and point to a new direction for further study, potentially leading to a return to Einstein's General Relativity.
Scientists have found elusive Dirac electrons in a unique material, paving the way for faster and more secure quantum computing. The discovery uses superconducting properties to create a new kind of qubit, potentially overcoming local noise problems in quantum computers.
By using high-powered X-ray laser, researchers stripped a record 36 electrons from a xenon atom, achieving a previously unachievable positively charged state. This breakthrough will help create new states of matter and produce higher-quality images of nano-world objects.
Researchers at Boston College have found that tiny ripples on a topological insulator's surface can modulate Dirac electrons into flowing pathways mirroring the surface topography. This modulation allows for control over electron flow, potentially leading to the creation of a one-dimensional quantum wire.
Multicellular bacteria have been found to function as living power cables, transmitting electrons across large distances as part of their respiration and ingestion processes. The discovery reveals a previously unknown type of long, multicellular bacteria that act as biological power cables.
Sourav Saha's research in the Journal of the American Chemical Society has led to the development of a compound that can strip electrons from toxic fluoride, producing tangible benefits for toxin detection and removal. This innovation has far-reaching potential applications in various fields, including the creation of new plastics and ...
A multi-university team has developed a powerful laser-powered electron paramagnetic resonance (EPR) spectrometer to study free radicals and nitrogen atoms in diamonds. This innovation allows for high-resolution analysis of tiny molecules, shedding light on their structure and behavior.
Scientists study electron strahl, a stream of high-energy electrons from the sun, using five years of data. They found that widths vary, with some being much wider than expected, indicating an unknown scattering mechanism.
Researchers measured spin properties of electrons in graphene using a new technique, enabling the detection of spin resonance electrically. This breakthrough propels research forward into optimizing graphene for spintronic applications.
Researchers at Duke University created a system to study electron tunneling and unexpectedly found a quantum phase transition. The discovery could provide a simple model for testing environments where quantum phase transitions occur.
Researchers examine relationship between disorder and quantum coherence in materials, finding that a pinch of disorder is good but too much can destroy coherence. The Joint Quantum Institute experiment uses laser beams to introduce slight disorder into rubidium atoms, revealing how it affects their behavior.
Researchers at HZDR demonstrate proton acceleration in the direction of the laser light, achieving unprecedented high energies. This breakthrough enables future cancer therapy applications with ultra-short pulse lasers.
Researchers observe electrons gain mass while cooling down to far below room temperature, acting like much heavier particles, yet remain speedy superconductors at even lower temperatures. The degree of entanglement determines the properties of a material.
Researchers at the University of Washington have discovered a new aspect of chemical reactions on metal oxide surfaces that could lead to more efficient energy systems. The new perspective proposes coupling electrons and protons, which could help reduce energy barriers in technologies such as solar cells and hydrogen fuel cells.
Researchers have made a breakthrough in understanding correlated electron dynamics by observing double ionization events at the attosecond scale. They found that these events occur earlier than expected, shedding new light on quantum dynamics.
A team of physicists has developed a new design for nano-billiards that eliminates the effect of small bumps on electron paths, enabling more predictable electronic devices. By removing impurities and defects, researchers have created stable billiard tables at the nanoscale, paving the way for improved nanoscale electronics.
Researchers found that traditional 'quasiparticle' theory breaks down at 'quantum critical point', where electrons behave strangely. The study used heavy-fermion metals to show a breakdown in fundamental concepts of Landau-Fermi liquid theory.
Researchers created a graphene lens that focuses electrons by controlling the focal length through geometry changes. The graphene lens uses strained graphene to shepherd electrons to a fine point, allowing for high-speed data exchange without traditional cable restrictions.
Researchers found a way to influence electron flow through graphene by mounting it on boron nitride, enabling more controlled electronic properties. The discovery creates hexagonal structures that prevent some electrons from passing through, opening up new possibilities for graphene-based microelectronics.
Researchers at Vanderbilt University have identified a major barrier to faster graphene devices, finding that charged impurities on the surface of graphene scatter electrons. By using electrically neutral liquids, they achieved record-levels of room-temperature electron mobility, three times greater than previous graphene-based devices.
Researchers at NIST and NRL developed a better understanding of how to optimize organic solar cell performance by varying layer thickness. The ideal layer thickness of 2 nanometers results in the best current generation, but further engineering challenges remain to be addressed.
Researchers have recorded real-time images of two atoms vibrating in a molecule using a new ultrafast camera. The technique, called laser-induced electron diffraction (LIED), allows for the capture of rapid molecular motion and could lead to controlling chemical reactions on an atomic scale.
A new computer simulation has identified the source of high-speed electrons responsible for auroras, solving a long-standing astrophysical puzzle. The simulation reveals that an active region in Earth's magnetotail can accelerate many electrons, explaining observed features detected by spacecraft missions.
The University of York team has developed electron beams with orbital angular momentum, enabling the efficient examination of magnetic materials. This breakthrough promises novel applications in nanoparticle manipulation and edge contrast detection.
Physicists at the University of California, Riverside, have launched a lab experiment to determine if antimatter behaves differently in gravity than matter. The researchers created positronium, a bound state between a positron and an electron, and measured its deflection due to gravity.
Researchers successfully stabilized electron orbits using an electromagnetic field, mimicking Jupiter's gravitational influence on asteroids. The experiment verifies calculations made at Vienna University of Technology and holds promise for future studies on the quantum-world of tiny objects.
A UC Riverside-led team has identified a property of bilayer graphene that becomes insulating when the number of electrons on the sheet is close to zero. This finding suggests promising routes for digital and infrared technologies, including trilayer and tetralayer graphene with larger energy gaps.
Researchers have observed a new class of electron interactions that play a major role in the orbital nature of electrons in nanostructures. By tuning a specific effect, they eliminated spin-spin interactions while preserving orbital-orbital interactions. This discovery opens doors to new quantum electronic schemes.
Researchers at CRC 1044 investigate hadron physics, quark-gluon interactions, and the structure of matter using high-precision measurements and theoretical analyses. The project will also explore the anomalous magnetic moment of the muon and the proton-radius puzzle.
Physicists at Duke University used supercomputers to simulate an ultra-cold atom and split a virtual electron in half, creating two particles with half the negative charge. This discovery provides clues about the behavior of fundamental particles and challenges traditional notions of particle indivisibility.
Researchers from the University of Gothenburg developed a new method to study electron interactions in negative ions, crucial for understanding phenomena like superconductors. This knowledge may also shed light on the origin of life and the chemical reactions that occurred in space.
Physicists at Helmholtz-Zentrum Dresden-Rossendorf develop new theoretical model for predicting hot electron density and temperature after laser interaction. This allows precise calculation of hot electron energy, enabling optimization of future experiments and medical applications.
Researchers from NIST and UVA successfully demonstrated the use of electron tweezers to move, position and assemble tiny particles at the nanoscale. Electron tweezers have the potential to offer a thousand-fold improvement in sensitivity and resolution compared to traditional laser optical tweezers.
Electrons in graphene exhibit Klein tunneling, allowing them to pass through energy barriers regardless of width and height. This phenomenon has been observed experimentally in graphene.
Researchers at Ruhr-University Bochum have developed a method to manipulate individual electrons, enabling the transportation of an electron from one quantum dot to another using a sound wave. This breakthrough has significant implications for the development of more powerful computers.
Researchers at the University of Washington have created a novel proton-based transistor that can communicate directly with living organisms. The device uses protons instead of electrons and has potential applications in biological sensing, prosthetics, and even controlling certain biological processes.
Researchers studied electronic properties of bilayer graphene, revealing unique effects due to electron-electron interactions. The material's quasiparticles exhibit chiral symmetry, making it an exciting material for electronic applications.
A team of researchers at Purdue University has successfully created ultrapure gallium arsenide material that captures exotic states of matter. By cooling the material to extremely low temperatures and applying a magnetic field, they can create correlated states where electrons behave according to quantum mechanics.
Researchers propose that quantum dots with opposing spin electrons can create a peculiar form of magnetism. This phenomenon occurs due to the 'tug-of-war' between the mobile electrons and the manganese atoms in the quantum dot. The resulting magnetic message can align spins, causing the quantum dot to be magnetic.
Researchers have measured the electron's shape for the first time, finding it to be almost perfectly spherical. This breakthrough could help explain the universe's lack of antimatter and refine fundamental theories of physics.
Researchers discovered that antiferromagnetism and superconductivity can coexist in certain solids, contradicting previous theories. This finding provides crucial experimental evidence for understanding the interplay between various phases in high-temperature superconductors.
Researchers at TUM developed a new method to measure photocurrent in nanoscale photodetectors with picosecond precision, enabling faster detection of electrons. This breakthrough has significant implications for the development of optoelectronic components such as nanoscale photodetectors and solar cells.
Researchers at the University of Illinois have developed a model for interacting electrons in unconventional superconductors by mimicking the behavior of charged black holes. This work resolves the Mott problem, which has puzzled physicists for decades, and sheds light on the origin of superconductivity in copper oxide materials.
Researchers directly measure proton spin contributions from different flavored quarks for the first time. The study suggests that gluons contribute less than expected, leaving the source of spin still unknown.
Research focuses on magnetism in three new classes of materials, including strange iridium oxide-based metals and topological insulators. The study aims to understand spin-orbit coupling effects in these materials for future energy transport and computing applications.
Scientists from University of Copenhagen reveal curved carbon's potential for unprecedented control over electron spin, paving the way for new applications in spin-based nanoelectronics. The discovery opens up possibilities for controlling and manipulating the spin of electrons.
Researchers at Eindhoven University of Technology have developed an affordable alternative to the expensive X-FEL, which can perform similar molecular process research on a tabletop. The 'poor man's X-FEL' uses electrons instead of X-rays and requires less energy, making it a more feasible option for researchers.