Articles tagged with Electric Fields
Researchers calculate sun's electric field distribution, revealing its impact on solar wind acceleration. The study provides new insights into the sun's interaction with charged particles and their effect on Earth's activities.
Researchers at Columbia and Northwestern universities have developed a method to induce oscillations in micro-particles using DC electric fields. This motion could be used to develop microrobots with capabilities rivaling those of living organisms.
Researchers at Duke University developed acoustoelectronic nanotweezers that control nanoparticles using sound-induced electric fields. This label-free, dynamically controllable method can be applied to various technologies, including biomedicine and condensed matter physics.
Researchers at University of Bristol have developed a method to measure electric field inside semiconductor devices, enabling more efficient power and radio frequency electronics. This breakthrough has the potential to reduce energy loss by up to 10% across the globe and is a step towards a carbon neutral society.
Physicists at University of Gothenburg create modern version of classical experiment to directly visualize electron quantization. A single levitated droplet is used to demonstrate the minimum, indivisible amount of charge, making it visible with naked eye.
Researchers developed a graphene-based sensor to record real-time electrical activity of a beating heart, offering high sensitivity and parallel detection. The 'graphene camera' allows for imaging entire networks of cells simultaneously, enabling new studies on neural networks.
Scientists successfully create and manipulate quinary charge states in a single atomic defect of a 2D intermetallic semiconductor. This breakthrough enables the development of more compact solotronics devices with low energy requirements, overcoming the challenge of Coulomb repulsion energy.
Researchers develop microscopic theory of magnetoelectric effect in FeCr2O4 ferrimagnet, revealing two effective mechanisms for electric polarization and optical absorption. The study enhances prediction of electron-deformation coupling parameters, crucial for magnetostriction applications and critical temperature control.
Researchers developed a scanning quantum sensing microscope that maps local electric fields with a spatial resolution of ~10 nm and sensitivity close to an elementary charge. The technique allows for reversible control of single NV's charge states, enabling the purification of NV's electrostatic environment.
University of Maryland researchers have made surprising discoveries about the behavior of functionalized nanochannels, including the phenomenon of overscreening, where a negatively charged polymer layer can become positively charged due to attraction of positive ions. The team also found that increasing the electric field strength can ...
Scientists at the University of Groningen found that oxygen atoms migrating through a hafnium-based capacitor create spontaneous polarization, enabling ferroelectric properties. This discovery paves the way for new materials with potential applications in nanometre-sized memory and logic devices.
Researchers propose using electron holes as a solution to operational speed/coherence trade-off in quantum computing. Theoretical studies predict holes can be used to create robust quantum bits with optimal operation points for ultrafast and highly coherent performance.
The research team used laser spectroscopy to define the physics of trapped carriers in organic metal halide perovskite films. By analyzing the photocurrent, they identified defects that reduce efficiency, ultimately leading to increased performance and lower costs for solar cells and other devices.
Researchers develop an innovative algorithm inspired by weakly electric fish to detect and locate objects via electrosensing. The multi-scale approach combines information gathered at different distances from the object, providing a more accurate understanding of its features.
JILA scientists use an electric 'knob' to control molecular collisions and raise or lower chemical reaction rates in ultracold gases. The ability to manipulate these reactions enables the design of novel chemicals, new platforms for quantum computers, and precision measurement tools.
Researchers discovered that electric fish use specialized long-distance electric signals to communicate with each other, similar to AM radio, allowing them to navigate and interact in absolute darkness. The cave-adapted fish have greater electric field strengths than surface-dwelling relatives.
Researchers at JILA create a dense gas of ultracold potassium-rubidium molecules, gaining control over long-distance molecular interactions. The new scheme enables exploration of exotic quantum states in which all molecules interact with each other.
Researchers at Osaka University have created thin films of neodymium nickel oxide with an electrical resistance that can change dramatically by controlling the distribution of hydrogen ions. This breakthrough could lead to novel switches and potentially entirely new kinds of computer circuits.
Holographic fluorescence imaging combines sensitivity, resolution, and specificity to track individual particles in 3D. The technique uses lateral shearing-interferometry to access phase information of each photon, enabling single-molecule sensitivity.
Physicists at Martin-Luther-University Halle-Wittenberg and Central South University found a way to enhance magnetism's response to electrical fields by stacking magnetic layers. This mechanism can be precisely controlled, allowing for efficient electrical control of magnetic signals.
A new UNSW study comprehensively reviews the magnetic structure of bismuth ferrite (BiFeO3), a multiferroic material that displays both magnetic and electronic ordering at room temperature. This unique property allows for low-energy switching in data storage devices, making it a promising material for future, low-energy data storage.
Researchers at uOttawa have created a new method to measure the temporal evolution of electric fields with optical frequencies, facilitating direct measurement and leading to breakthroughs in high-speed electronics. The new approach uses ambient air, simplifying the process and opening up possibilities for petahertz electronics.
Researchers at Tohoku University have developed a new quantum technology that allows qubits to hold information for 10 milliseconds, 10,000 times longer than the previous record. This breakthrough has significant implications for the development of large quantum computers.
New experiments demonstrate the generation and manipulation of free electrons in liquid water using external terahertz fields. The results show that these fields enhance the number of free electrons by up to a factor of 1000, allowing for the transport and localization of charges in liquids.
Scientists from Peking University have developed an efficient method for manipulating the electron spin using an electric field, overcoming the challenges of traditional magnetic resonance techniques. The breakthrough could lead to significant advancements in quantum information processing and the development of quantum computation units.
Aerodynamic experiments reveal that wind reduces the strength of corona discharges around airplane wings, unlike grounded structures where winds strengthen the glow. The study provides new insights into the complex interactions between air, electricity, and wing shapes during thunderstorms.
Researchers have developed graphene-based sensors that retain adsorbed gas molecule interactions hours after electric field is turned off, enabling long-term molecular identification and 'beyond-sensing' applications.
Chinese researchers successfully reversed single magnetic vortex circulation using an electric field, demonstrating a promising approach for future spintronic devices with higher storage density and lower power consumption. The study reveals a new magnetoelectric coupling mechanism for controlling nanoscale chiral spin textures.
Researchers at Mainz University have developed a technique that can halve the energy required to write data to servers by utilizing piezoelectric crystals. This innovation enables complex server architectures and reduces energy consumption, which is projected to increase significantly in the IT sector.
A team of UConn engineers has developed a scaffold that generates a controllable electrical field to encourage bone growth, providing a new approach for treating serious injuries. The device uses non-toxic poly(L-lactic acid) polymer and remotely-controlled ultrasound to stimulate bone regeneration.
Scientists have developed a device that can manipulate and measure cells' movements in response to electric fields, enabling new possibilities for tissue engineering. The SCHEEPDOG system allows researchers to program complex cell maneuvers, such as full circles, with thousands of neighboring cells executing on command.
Researchers found that newborn particles interacting with powerful electromagnetic fields produce pulsars' unique beams of radio waves. The discovery could improve pulsar timing arrays and shed light on fast radio bursts.
Researchers at MIT used a super collider and laser spectroscopy to precisely measure radium monofluoride, a short-lived radioactive molecule. The study's findings could reveal signs of dark matter and test symmetry-violating phenomena in nature.
Researchers at MIT have discovered a new phenomenon that enables the controlled movement of tiny particles in suspension, analogous to the swerving of a curveball. This electrokinetic effect could lead to new ways of performing industrial or medical processes that require separation of suspended nanomaterials.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have developed a novel material that can increase the frequency of terahertz radiation by a factor of seven, paving the way for potential IT applications. The material, cadmium arsenide, is a three-dimensional Dirac material that enables non-linear frequency conversion.
Researchers at Rice University found evidence of piezoelectricity in lab-grown molybdenum dioxide flakes due to trapped electrons in defects. The material exhibits strong piezoelectric response comparable to conventional materials like molybdenum disulfide.
A Tel Aviv University study reveals a direct connection between electrical fields in the atmosphere and those found in living organisms, including humans. This finding may lead to revolutionary medical treatments for illnesses such as epilepsy and Parkinson's disease.
Dr. Soon Moon Jeong's team creates a new light-emitting technology using in-plane electro-luminescent technology that inserts electrodes into a luminous layer, overcoming existing limitations. The device emits light more flexibly and stably than traditional devices, with applications in wearable devices and textiles.
Researchers developed polyarylene ether ketone-based copolymer (co-PAEK) films that can withstand electrostatic discharges caused by ionizing radiation. The films' high conductivity and low switching thresholds make them promising candidates for space electronics protection.
A team of engineers at UNSW Sydney has successfully controlled the nucleus of a single atom using only electric fields, solving a problem that stood for over half a century. This breakthrough has major implications for the development of quantum computers and sensors, enabling precise control over individual atoms.
Researchers studied green fluorescent protein to understand how electric fields impact its twisting motion. They found that tuning the chromophore's electronic properties can significantly alter this process. This discovery could lead to developing light-sensitive proteins for biological imaging and optogenetics.
Researchers manipulate ferroelectric domain walls in bismuth ferrite thin films using piezoresponse microscope, achieving oriented growth and configuration control. The study provides a generalizable approach for DW dynamic studies and advanced tunability of conductive DWs.
A team of scientists at Tokyo University of Science developed a new method to modulate light using water as a medium, called giant optical modulation. This technique is less expensive and easier to use than conventional methods, with a maximum intensity change of 50% proportional to the applied AC voltage.
A new material phase has been discovered that enables unique control over material properties, including electrical conduction. This discovery paves the way for manipulating these properties using temperature, pressure, and electric fields, opening up exciting opportunities for ultrathin energy and electronics technologies.
Researchers at the University of Groningen have created a new type of superconductor using suspended layers of molybdenum disulfide. The superconductivity is strongly protected against external magnetic fields, even in extremely strong static magnetic fields.
Researchers successfully suppressed quantum tunneling in ammonia molecules by applying a strong electric field, demonstrating the phenomenon's 'spookiness'. The study uses this approach to explore molecular dynamics and potentially exploit it with other molecules.
Researchers at UCI have developed a new scanning transmission electron microscopy method that enables visualization of the electric charge density of materials at sub-angstrom resolution. The technique revealed the mechanism of charge transfer between two materials and uncovered clues to the origins of ferroelectricity.
Scientists at University of Illinois replicate Hall Effect with photons, enhancing one-way radio transmission and absorbing opposing signals. The technique could protect sources from interference and ensure accurate quantum measurements.
Stoltzfus-Dueck will develop and test models for plasma confinement, a crucial step towards harnessing fusion reactions. His research aims to increase understanding of next-generation fusion plasmas and enhance the control of edge turbulence.
Researchers from Kumamoto University found that nsPEFs can stimulate immune cells to respond as if they were being stimulated by bacteria. This was achieved through the release of chromosomal DNA and histone citrullination in neutrophils, similar to the process occurring when neutrophils are exposed to bacteria.
Researchers have created a new concept for self-assembling micromachines using dielectrophoresis, which enables components to find each other in an electric field. This technique has the potential to construct medical microrobots and laboratory devices on microchips.
Scientists have successfully recorded and played back music using Rydberg atoms, which respond to radio waves, enabling potential improvements in audio data transmission. The research could lead to better noise-picking capabilities and improved security in deep space communications.
Researchers at Tokyo University of Science have made significant breakthroughs in human body communication (HBC), which uses the human body as a network to transfer information. By analyzing the characteristics of impedance and electrodes, they found that HBC can be used to design more efficient devices with better user interaction.
Researchers from Forschungszentrum Jülich developed a new scanning quantum dot microscopy method that can measure electric potentials of individual atoms and molecules. This allows for the characterization of biomolecules like DNA and opens up new opportunities for chip manufacture.
Physicists Pawel Pieranski and Maria Helena Godinho have found that the 'dowser texture' in nematic liquid crystals responds differently to electric fields in various materials. This phenomenon, known as electro-osmosis, enables detection of subtle electrical effects.
Researchers have observed an electric-field controlled reversible transition from superconductor to ferromagnetic insulator in (Li,Fe)OHFeSe thin flake. This work provides a unique platform to study the relationship between superconductivity and ferromagnetism in Fe-based superconductors.
Researchers at Indiana University School of Medicine have developed an electric field-based dressing that can disrupt and treat bacterial biofilms, which are responsible for many wound infections. The dressing, combined with other medications, shows promise as a potential game-changer in treating antibiotic-resistant infections.
Researchers discovered that the electric field component of a terahertz pulse plays a key role in large magnetization modulation of ferromagnetic nanoparticles. This allows for ultrafast coherent magnetization reversal within a picosecond, essential for ultrahigh-speed spintronics.
A team from Michigan Technological University has developed a new way to produce customizable nanofibers for growing cell cultures, cutting out the need for toxic solvents and chemicals. By varying electric field strengths, they can create different pocket sizes in the fibers, ideal for various cell types.
Researchers at Lehigh University have discovered that electrically-heated silicate glass can exhibit highly inhomogeneous temperature profiles, melting near the anode while remaining solid elsewhere. This phenomenon challenges classical Joule's law and has implications for the fabrication and manufacturing of glass and ceramic materials.