Articles tagged with Electrons
Physicists have developed a method to visualize three-dimensional wavefunctions of molecules, enabling the study of molecular interactions. The technique, which uses a table-top soft-X-ray laser and powerful computer algorithms, allows for the imaging of features smaller than atomic scales.
Researchers develop air-stable surface electrene, BaSiN2:O, with ultralow work function and freely floating electrons. This material catalyzes ammonia synthesis under mild conditions, overcoming previous air instability limitations.
A UCLA-led team discovered that synchronized electron movement can trigger electrical signals more than 100 times larger than conventional electronic materials. This breakthrough could lead to smaller, more energy-efficient devices using a quantum-like collective state of matter called charge-density-wave.
Researchers discovered a maximum amount of electrical resistance that can occur due to electron collisions, offering insights into what causes resistivity at the microscopic level. The study found that when interactions between atoms become too strong, the resistivity caused by collisions eventually stops rising and saturates.
Researchers develop silver-single-crystal silicon nanodisk antenna to overcome the picosecond tail in ultrafast optics. By extracting energy before lattice heating, they achieve modulation in the tens-of-femtoseconds range.
A research team has successfully removed the primary obstacle to post-silicon computing by creating a record-breaking electronic connection for atomic-thin materials. The new GaOx layer enables 'hybrid tunnelling' mechanism, reducing contact resistance and allowing transistors to operate at much lower voltages without sacrificing speed.
A new detector technology has been developed to track elementary particles in large volumes of unsegmented scintillator material. The system uses a plenoptic camera and single-photon avalanche diode array sensors to achieve high-resolution 3D tracking, even in photon-starved conditions.
Using three-dimensional electron diffraction, researchers demonstrate that electrons can provide averaged structural information previously accessible only with X-rays. They also optimize the electron dose and develop tailored acquisition strategies to probe highly sensitive nanocrystalline structures while preserving the material.
Researchers have successfully created a high-efficiency quantum light source that emits bright lights even at room temperature using 2D semiconductors. The achievement is made possible by confining excitons in a tiny region via nanohole-induced confinement and neutralizing excess charges.
Researchers directly imaged paired electrons causing electric current to flow without resistance at sufficiently low temperatures. The experiment revealed that the paired atoms moved in a synchronized dance, with their positions dependent on those of other pairs.
Researchers at Johannes Gutenberg University Mainz successfully trapped both electrons and heavy calcium ions in the same apparatus using a new dual-frequency Paul trap. The technology has the potential to synthesize antihydrogen by capturing antiprotons and positrons simultaneously.
Researchers at Politecnico di Milano and CNR have developed a new ultrafast computer technology controlled by light, potentially hundreds of times faster than traditional electronics. The technology manipulates the state of electrons in matter using oscillating light, enabling operations at rates above 10 terahertz.
A recent study revealed that the solar superstorm caused a dramatic increase in electrons in two distinct layers of Mars' atmosphere at altitudes of around 110 and 130 km. The storm also triggered computer errors for both orbiters, but they recovered quickly due to their radiation-resistant components.
Physicists have developed a new terahertz microscope that allows them to observe quantum vibrations in superconducting materials for the first time. The microscope enables researchers to study properties that could lead to room-temperature superconductors and identify materials that emit and receive terahertz radiation.
A team of researchers has observed the Einstein–de Haas effect in a Bose–Einstein condensate, demonstrating the transfer of angular momentum from atomic spins to fluid motion. This finding highlights the conservation of angular momentum between microscopic spin and macroscopic mechanical rotation in the quantum world.
Researchers have discovered a new quantum state of matter that combines quantum criticality and electronic topology, paving the way for advancements in computing, sensing, and materials science. This hybrid state has potential applications in real-world technologies due to its durable and highly sensitive qualities.
Researchers at Institute of Science Tokyo have discovered a stable superfluid that inherently hosts singularities known as exceptional points. The study reveals how dissipation can stabilize this unique superfluid phase, which features a finite order parameter and emerges deep inside a strongly interacting phase.
A University of Houston chemist has received a nearly $2M grant to develop molecular blueprints for controlling how molecules change shape and reactivity upon absorbing light. This research could lead to breakthroughs in storing and using chemical energy, as well as designing materials that change when exposed to light.
Researchers at Tohoku University have discovered a universal quantum rule governing electron-phonon coupling strength, which is linked to the fine-structure constant. The study reveals that this strength is quantized and universally applies to crystals, with implications for designing materials with tailored properties.
Researchers at the Institute of Industrial Science, The University of Tokyo, have precisely detected quantum tunneling of hydrogen atoms in palladium metal. Hydrogen atoms can pass through energy barriers via quantum tunneling due to 'quantum' effects.
Researchers at Florida State University have discovered a new state of matter in electrons, which allows them to form crystalline lattices but can also 'melt' into liquid states. This phenomenon has potential applications in quantum computing, superconductivity, and energy storage.
A new study provides guidelines on creating photoreactive molecules sensitive to mechanical stimuli using flexible linkers. The findings may open possibilities for highly efficient energy conversion devices and advanced medical therapies.
Nuclear chemists at the University of Cologne provide experimental proof of technetium-98's electron capture decay into molybdenum-98. The finding confirms a decades-old theoretical assumption and expands understanding of nuclear decay processes.
Scientists have discovered how to generate an electron gas by illuminating a material made of layers of oxides, enabling light-controlled electronic components. This breakthrough could lead to applications in spintronics and quantum computing, with potential energy savings of up to a third of electrical contacts on computer processors.
Rice scientists developed a method to pattern device functions with submicron precision directly into an ultrathin crystal using focused electron beams. The approach created bright blue-light emitting traces that also conduct electricity, potentially enabling compact on-chip wiring and built-in light sources.
Researchers at Tampere University discovered that quantum scars enhance electron transport in open quantum dots, enabling electrical conduction in nanoscale components. This breakthrough paves the way for developing efficient microchips and potentially new types of qubits for quantum computing.
Researchers mapped key aspects of electron pulses that can generate laser-like X-ray pulses, improving access to XFELs. The technique enables studying molecule behavior in detail and advancing fields like chemistry and medicine.
In graphene, electrons behave like a perfect fluid with electrical properties described by a universal quantum number. Researchers discovered this property in exceptionally clean samples of graphene, observing an inverse relationship between electrical and thermal conductivity.
The European Space Agency-led Solar Orbiter mission has split energetic particles into two groups, tracing them back to distinct solar outbursts. Researchers found that one type of particle is connected to intense solar flares and the other to larger coronal mass ejections.
A team of scientists observed the earliest steps of ultrafast charge transfer in a complex dye molecule, with high-frequency vibrations playing a central role. The experiments showed that these vibrations initiate charge transport, while processes in the surrounding solvent begin only at a later stage.
Scientists from the University of Kansas developed a technique to track ultra-peripheral collisions between protons and ions, resulting in the creation of gold momentarily. The discovery was made possible by studying photon-photon collisions, which are incredibly clean events with almost nothing else produced.
A new model details the kinetics of exciton dynamics in OLED materials, enhancing lifetime and accelerating material development. The findings have potential to improve fluorescence efficiency, leading to more advanced OLED devices.
Researchers at University of Chicago Pritzker School of Molecular Engineering discovered one of the world's thinnest semiconductor junctions within a quantum material. The discovery could lead to ultra-miniaturized electronic components and provides insight into electron behavior in materials designed for quantum applications.
University of Missouri scientists have developed an ice lithography technique that etches small patterns onto fragile biological surfaces without damaging them. The method uses frozen ethanol to protect the surface and apply precise patterns.
Scientists have developed a novel CT-ICT system that utilizes a pyrazinacene derivative to facilitate reversible color-changing properties. The system, which co-crystallizes with naphthalene, demonstrates a dramatic color shift from greenish-blue to red-violet.
The Super-Kamiokande and T2K Collaborations present a joint measurement of neutrino oscillation parameters using atmospheric and beam neutrino data. The analysis finds a 1.9𝜎 exclusion of 𝐶𝑃 conservation and a 1.2𝜎 exclusion of the inverted mass ordering.
SLAC researchers develop a laser-based shaping technique to compress billions of electrons into a length less than one micrometer, producing an electron beam with femtosecond-duration and petawatt peak power. This achievement opens up new discoveries in quantum chemistry, astrophysics, and material science.
A new experimental concept called ultrafast vortex electron diffraction allows for direct visualization of electron movement in molecules. This technique effectively isolates coherent electron dynamics, enabling deeper insights into energy transfer and material behavior.
Researchers at Lancaster University have successfully demonstrated negative refraction using atomic arrays, eliminating the need for metamaterials. This achievement paves the way for novel technologies based on negative refraction, including perfect lenses and cloaking devices.
Researchers at MIT and Harvard University have directly measured superfluid stiffness in magic-angle graphene for the first time, shedding light on its remarkable properties. The study suggests that quantum geometry governs the material's superconductivity, a key step toward understanding its exceptional properties.
Researchers at the University of Utah and UCI have discovered a unique quantum behavior that allows for the manipulation of electron-spin and magnetization through electrical currents. This phenomenon, dubbed anomalous Hall torque, has potential applications in neuromorphic computing.
Researchers from Pohang University of Science & Technology confirm the existence of hidden transport pathways in graphene, which enables faster and more efficient data handling. The study sheds light on the 'Valley Hall Effect' and its role in nonlocal resistance, providing crucial insights for advancing valleytronics device design.
Researchers Carsten Ullrich and Deepak Singh have discovered a new type of quasiparticle in all magnetic materials, challenging previous understanding of magnetism. This finding could lead to the development of faster, smarter, and more energy-efficient electronics.
The quantum Hall effect produces a magnetic current in addition to the well-known electric current, allowing for more efficient devices. This breakthrough could enable the creation of new types of electronic devices without energy loss.
Researchers at Tata Institute of Fundamental Research have developed a novel method to steer relativistic electron pulses produced by femtosecond lasers. By using solid targets with nanopillars, they achieved coherent control over the electrons' directionality and formed narrow beams.
Pratyanik Sau, a senior at the University of Texas at Arlington, won an Outstanding Undergraduate Student Oral Presentation Award for his research on graphene using positrons. The study has implications for designing particle accelerators and fusion reactors.
Researchers at Osaka University have discovered a 'nano-switch mechanism' that controls the potential of an electron carrier protein in redox reactions. This finding has significant implications for the development of ultra-sensitive sensors and novel drugs.
The comprehensive review highlights the impact of electron density topology on materials science and chemistry. It reveals connections between methods, including NG QTAIM, and their potential for simulating complex reactions, enabling more realistic computing and understanding of matter.
The study reveals that atomic resolution SE imaging can distinguish between surface atomic arrangements with high sensitivity, identifying honeycomb-like structures composed of molybdenum and sulfur atoms. The method's depth sensitivity is also demonstrated by the absorption or scattering of SEs from the second layer.
Researchers at the University of Colorado Boulder have discovered a link between lightning storms on Earth and high-energy electrons in space. The team found that lightning strikes can knock these 'killer electrons' out of the inner radiation belt, which could pose a threat to satellites and astronauts.
A recent study has lifted the veil of topological censorship by revealing a meandering conduction channel that can carry quantized bulk current. The researchers identified mechanisms that allow for tuning between qualitatively different microscopic implementations, challenging traditional theories.
Researchers have made breakthroughs in hot carrier solar cells by studying electron tunneling and collection, increasing generation and extraction. The study revealed that a new system comprising AlGaAs and GaAs materials can harness valley photovoltaics and realize solar cells beyond the current single bandgap limits.
Researchers from Osaka University have synthesized a new molecule that increases the power conversion efficiency of organic solar cells. The molecule's design reduces exciton binding energy, making it easier to convert sunlight into current. This breakthrough paves the way for high-performance and large-scale photovoltaic applications.
Researchers at MIT have directly observed edge states in a cloud of ultracold atoms, capturing images of atoms flowing along a boundary without resistance. This discovery could enable super-efficient energy transmission and data transfer in materials.
Researchers used neural networks to solve fundamental equations in complex molecular systems, achieving promising results in simulating excited states of molecules. This breakthrough could lead to practical uses in materials science and chemical synthesis.
The distribution of outermost shell electrons was experimentally observed in organic molecules, revealing a fragmented electron cloud distribution. This demonstrates the quantum mechanical wave nature of electrons and validates a theoretical model proposed by quantum chemistry.
Researchers at the University of Arizona developed a transmission electron microscope with attosecond temporal resolution, allowing scientists to observe electron motion in real-time. This breakthrough enables studies of ultrafast processes at the atomic level, paving the way for advancements in physics and chemistry.
A team of researchers has discovered novel and unexpected phenomena when studying fractional quantum Hall effects in flatland systems. By applying a supplementary current to high mobility semiconductor devices, they were able to explore new non-equilibrium states of these quantum systems and reveal entirely new states of matter.
Scientists at National University of Singapore have created electron-hole crystals in an exotic quantum material, paving the way for advancements in computing technologies. The breakthrough was achieved using scanning tunneling microscopy and reveals two distinct ordered patterns at different energy levels.
Researchers have successfully transformed existing optoelectronic devices, including LEDs, into spintronics devices by injecting spin-aligned electrons without ferromagnets or magnetic fields. The breakthrough uses a chiral spin filter made from hybrid organic-inorganic halide perovskite material, overcoming a major barrier to commerci...