Articles tagged with Electron Scattering
Researchers have created digital switches using graphene-nanotube hybrids, outperforming existing graphene-based switches. The material's lopsided band gaps create a potential barrier that stops electrons, enabling high-speed switching.
Scientists at Princeton University have discovered Weyl fermions, a massless particle theorized 85 years ago. The particle could enable nearly free and efficient flow of electricity in electronics, leading to greater power for computers.
Researchers successfully employed ultrafast terahertz spectroscopy to determine the basic properties of spintronics components. The study reveals significant underestimation of spin asymmetry in electron scattering, a core factor determining giant magnetoresistance.
Scientists at the Max Planck Institute for Polymer Research discovered the fundamental parameters of Mott conduction, a key effect in magnetic memories and technologies. They found that traditional measurements underestimated the spin-asymmetry in electron scattering, which is responsible for magnetic sensor operation.
Scientists from Carnegie Institution have made a groundbreaking discovery that resolves the long-standing debate on how metals become less conductive when heated. Their work reveals that the missing piece of the traditional theory explaining this phenomenon was needed to complete the puzzle for generating Earth's magnetic field.
The Van Allen radiation belts contain a nearly impenetrable barrier that prevents the fastest, most energetic electrons from reaching Earth. The discovery was made using NASA's Van Allen Probes, which study the region and provide accurate measurements of high-energy electrons for the first time.
A new method to tune topological insulators has been found, enhancing surface conduction by applying stress at grain boundaries. This discovery could lead to the development of ultra-energy efficient electronics.
Researchers discovered graphene nanoribbons exhibit exceptional ballistic transport, allowing electrons to flow smoothly along the edges. This property could lead to ultra-fast computing and new types of electronic devices that exploit room temperature conductivity.
Researchers at UNL's Extreme Light Laboratory developed a novel method to generate research-quality X-rays using a 'tabletop' laser, increasing accessibility to the technology. The new device produces high-energy X-rays with potential applications in Homeland Security, medical imaging, and scientific research.
Scientists have made the first experimental determination of the proton's weak charge, combining new data with published results. The result provides a rigorous test of the Standard Model and constraints on potential new physics at the Large Hadron Collider.
Researchers at Brookhaven National Laboratory develop method to measure energy required for electrons to pair up and how it varies with direction. The technique reveals directional dependence of the 'glue' holding electron pairs together, shedding light on magnetic superconductivity.
Researchers from UW-Milwaukee and University of York investigate ultra-thin films of new materials, aiming to create a materials platform for quantum computers. The team found that the unique properties of topological insulators can be modified by intrinsic defects, opening up new possibilities for spintronics.
Scientists at CSIRO and RMIT University created a new conductive nano-material, enabling ultra-high electron flow at speeds exceeding industry standards. The breakthrough material was made from layers of molybdenum oxides, adapted from graphene's unique properties.
Researchers have made significant progress in understanding the behavior of graphene grain boundaries, which scatter electrons and hinder electronic performance. The study suggests that controlling grain boundary orientation could be key to improving graphene's electronic properties.
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.
Pitt researchers suggest a vacuum-based approach to overcome the limits of conventional silicon-based semiconductor electronics. They found that electrons trapped in a semiconductor can be extracted into air, enabling low-power and high-speed transistors.
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.
Physicists have devised a new method to handle vibrations' effect on electron transport, improving qubit information transfer. The model simulates closer control over phonons and electrons, enabling stronger coupling regimes.
Substituting impure atoms into a heavy-fermion system destroys its superconductivity by creating 'Kondo holes' that disrupt electron interactions. Visualization techniques reveal widespread disruption and the spread of disturbance through the material.
Researchers have discovered a 'quantum leap' in graphene's electronic properties, enhancing electron-on-electron interaction. This breakthrough could accelerate research on devices like touch-screens and ultrafast transistors.
Researchers at MIT have developed a way to improve the resolution of high-speed e-beam lithography, making it more practical for mass production. By using a thinner resist layer and developing the resist with table salt, they were able to achieve resolutions down to nine nanometers.
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 controlled light scattering in graphene by manipulating quantum pathways, providing a new tool for studying this unique material. By controlling the excitation pathways, they can control the light emission, which has practical applications for controlling electronic states in graphene nanodevices.
New research from UCLA and the British Antarctic Survey reveals that chorus waves are responsible for scattering trapped electrons into the Earth's atmosphere. The findings have significant implications for understanding space weather and its effects on satellites, power grids, and aviation industries.
Researchers have discovered a short-range scattering mechanism in type-II GaSb/GaAs quantum dots, which may lead to more efficient transport of electrons and improved performance in quantum dot-based devices. This breakthrough has significant implications for the future design of novel quantum devices.
Using gauge/gravity duality, researchers identified a system with unusual properties similar to strange metals, which can be explained by gravitational mechanics. This approach may shed light on other materials and predict their behavior.
Astronomers using NASA's Rossi X-ray Timing Explorer (RXTE) satellite have confirmed that most of the X-rays in a binary system come from the dual, oppositely directed jets around a black hole. The study provides new insights into the complex behavior of these systems and their extreme environments.
Researchers from OU and Germany create a rare Rydberg molecule by interacting electrons with atoms at extremely low temperatures, demonstrating new bonding properties
Researchers at Lehigh University have developed a new cooling method for carbon nanotube electronics by utilizing nonconventional radiation in a near-field zone, dissipating heat into the substrate. The method increases effective thermal conductance over the interface between nanotubes and polar substrates.
Researchers discovered that scattering by impurities occurs in both the pseudogap and superconductive states, challenging existing theories. This finding could help understand why certain materials can superconduct at high temperatures.
Researchers from NIST and Georgia Tech created detailed maps of electron interference patterns in graphene to understand how single-atom defects affect charge flow. The results show that missing carbon atoms cause strong scattering, unlike irregularities in the underlying silicon carbide.
Researchers at the Advanced Light Source have confirmed the existence of spinons and holons in one-dimensional solids through direct experimental results. This discovery has significant implications for future developments in high-temperature superconductors, nanowires, and spintronics.
Bioengineers Teresa Head-Gordon and Margaret Johnson analyzed x-ray data to determine the static structural organization of liquid water. Their study found that, on average, liquid water molecules form a tetrahedral network, contradicting previous claims of a 'rings and chains' model.
Researchers have developed graphene circuitry comparable to carbon nanotubes, allowing for high-volume production. The material exhibits high electron mobility and coherence, enabling the transport of electrons through waveguides. Challenges ahead include improving patterning techniques and understanding fundamental properties.
Two recent papers by Pitt physicist demonstrate the existence of electrons stuck on metal surfaces under intense light, enabling total internal reflection. This phenomenon could lead to faster and smaller transistors and more efficient conversion of light into chemical energy.
Researchers at Rice University have discovered a simple geometry where light behaves exactly as electrons do in these systems. This finding has the potential to create nanoscale antennae that convert light into broadband electrical signals, increasing data transmission capabilities by 1 million times.
Scientists at Max-Planck Institute report strong violations of classical constraints on electron mean free path in metallic fullerenes, challenging the semi-classical approach. The study suggests that metallic behavior can occur with a mean free path less than atomic distance, indicating a breakdown of the semi-classical picture.