Articles tagged with Applied Physics
Researchers have created a stable thin film made from iron, cobalt, and manganese that boasts an average atomic moment potentially 50% greater than the Slater-Pauling limit. The new alloy features a magnetization density of 3.25 Bohr magnetons per atom, besting the previously considered maximum of 2.45.
Researchers have created a graphene-based radiation detector with a fast response time and the ability to work over a wide range of temperatures. The device exploits graphene's thermoelectric properties, generating an electric field that provides a direct measurement of radiation.
Researchers propose using gallium oxide for producing microelectronics due to its large bandgap and high-breakdown-voltage capabilities. This enables the design of FETs with smaller geometries and improved energy density.
The study reveals that when a crystal is broken along certain directions, atoms reorganize into labyrinthine structures. These structures have potential applications in hydrogen production and chemical reactions, enabling the splitting of water to produce hydrogen.
Researchers have developed a surface acoustic wave (SAW) device that can achieve frequencies six times higher than most current devices, thanks to the use of embedded interdigital transducers (IDTs). The device also boosts output power by 10 percent compared to conventional devices.
A research team from Kiel University has successfully placed a new class of spin-crossover molecules onto a surface and improved their storage capacity. The result could theoretically increase the storage density of conventional hard drives by more than one hundred fold, enabling data carriers to be made significantly smaller.
Engineers at Tohoku University created a system to measure the van der Waals' bonding force between crystal layers, increasing its strength seven times. This breakthrough enables more durable gallium selenide crystals for advanced technologies.
Researchers have created a proof of concept for MOSFETs using the deep depletion regime in bulk-boron-doped diamond, increasing hole channel carrier mobility by an order of magnitude. This enables more efficient power electronics and paves the way for fully exploiting diamond's potential in MOSFET applications.
Researchers at Pennsylvania State University have developed a novel technique for connecting piezoelectric thin films to flexible polymer substrates, reducing substrate clamping and improving material properties. The new method enables the creation of miniaturized piezoelectric devices with enhanced performance and flexibility.
A new origami lattice prototype can potentially reduce acoustic noise on roadways by selectively dampening noise at various frequencies. The technique allows researchers to adjust the distance between noise-diffusing elements, reducing noise levels by up to 90%.
Researchers have developed an asymmetric sound absorber that can absorb sound energy while allowing light and air to pass through. The system uses a two-port design with a waveguide, enabling near-total absorption of sound energy from outside the room.
James R. Ledwell's pioneering work on oceanic mixing and air-sea gas exchange earned him a spot among the Oceanography Society's esteemed Fellows. His groundbreaking techniques, including the deliberate tracer release experiment (TRE), have significantly advanced our understanding of ocean circulation.
Researchers have found that crystalline tungsten exhibits anisotropic resistivity, with smaller resistivity in certain orientations. The study's findings demonstrate the potential for tungsten to reduce nanowire resistance and may pave the way for new materials to replace copper interconnects.
Researchers found that soluble surfactants destabilize nanobubbles when adsorbed to substrates, while insoluble surfactants cause a liquid-to-vapor transition model of bubble rupture. This understanding is crucial for optimizing nanobubble applications in medicine, food science, and environmental advancements.
Researchers at Osaka University have developed a single-walled carbon nanotube device that can detect below-threshold signals through the use of stochastic resonance. The device's self-noise component is generated by molecular adsorption on graphite materials, increasing its signal detection ability.
Researchers have developed a simple method to create more nitrogen-vacancy centers in diamonds, enhancing their sensing capabilities for magnetic fields. This breakthrough could lead to more compact devices and improved sensitivity, enabling the creation of unique quantum states.
A team led by a Princeton University graduate student has developed a unique simulation of magnetic reconnection in space plasmas, which could lead to improved forecasts of space weather events. The new model approximates kinetic effects using fluid equations and agrees better with kinetic models than traditional simulations.
Andone C. Lavery has been recognized for her work on zooplankton and physical microstructure using broadband acoustic measurement methods, providing new understanding of ocean physical processes and marine biology. The award also acknowledges her Arctic oil spill research, which shares similarities with Walter Munk's ATOC work.
Researchers in China have successfully grown ferroelectric thin films with symmetric oxide electrodes, stabilizing flux-closure domains and their periodic arrays. This finding disproves previous theories and opens up new possibilities for the evolution of these structures under external electric fields.
Scientists use nonlinear reaction-diffusion equations to model gene movement and develop 'switches' that initiate and terminate gene drives, balancing genetic traits with embedded weaknesses. They also find that intense release in specific regions can trigger spreading, but can be stopped by barriers like pesticides.
Scientists use electron pulses to create and manipulate nanoscale magnetic excitations that can store data, confirming dynamic understandings provided by theory. Tailored electron pulses can swiftly write, erase or switch topologically protected magnetic textures such as skyrmions.
Researchers used a lattice-Botzmann method to simulate the impact of microdroplets on dry surfaces, revealing distinct physics at the microscopic level. They found that droplet sizes in spray cooling are three orders of magnitude smaller than previously studied millimeter-size droplets, and that this affects their dynamics.
A team of researchers has discovered magnetic vortex-antivortex pairs arising from correlated electron spins in a newly engineered trilayer material. The finding could advance memory cells and points to the potential development of 3-D magnetic logic circuits.
Researchers applied novel method to test 'Einstein's equivalence principle' using rubidium atoms in quantum superposition states, confirming its validity with high precision. The study has potential applications in navigation, time measurements, and searching for mineral deposits.
Researchers developed a magnetoelectric random access memory cell that can increase power efficiency and decrease heat waste by orders of magnitude for read operations at room temperature. This innovation has the potential to aid production of devices with lower energy consumption, such as instant-on laptops and data storage centers.
Researchers have developed a prototype for a spin-wave majority logic gate that utilizes wave interference to process information. This innovation uses spin waves instead of classical currents or voltages, enabling the creation of nanoscale devices with improved efficiency and reliability.
A team of researchers in Germany and Canada has successfully demonstrated a proof of concept for fully inkjet-printable flexible resistive memory. This breakthrough enables the mass production of printable electronics with mechanically flexible memory tiles, using commercially available materials.
Researchers at Duke University have developed a new 'jumping droplet' technique that effectively cools mobile hotspots by harnessing the power of surface energy. This breakthrough method, reported in Applied Physics Letters, enables efficient heat dissipation in all directions, outperforming existing methods.
Wealth distribution is closely tied to the evolutionary movement of all 'streams' of society, according to the Constructal Law. The law reveals that wealth and fuel use are increasing over time, making inequality a natural phenomenon.
Researchers designed a new focusing method for HIFU therapy, generating a subwavelength-scale focal region and extremely high ultrasound intensity. The lattice Boltzmann method modeling improves acoustic simulations and provides detailed information needed for estimating transducer performance.
Researchers have developed a new model that better calculates the expected level of capillary rise in nano-channels, which is crucial for fracking. The model takes into account the surface roughness of the capillaries and adjusts parameters to account for frictional drag.
A Japanese team of researchers has successfully applied a new material, MgGa2O4, to a tunnel barrier in magnetic tunnel junctions (MTJs), achieving large tunnel magnetoresistance ratios and low device resistance. This breakthrough opens the possibility for new spintronic applications.
A group of researchers has developed a method to control magnetism by curving nanomagnets, inducing chiral textures within the magnetization field. This discovery could lead to stable vortex-antivortex pairs for future data storage and random access memory devices.
Researchers at the University of Barcelona have developed a new bonding technique for chips using inkjet printers with silver nanoparticles, enabling the creation of rigid and flexible hybrid circuitry. The method uses inkjet printing technology to assemble surface mount devices, achieving high electrical conductivity and reliability.
A new study uses condensed matter theory to investigate the role of personal initiative in overcoming inequality. The researchers find that, under certain conditions, sufficient individual initiative can lead to reduced inequality, but this effect is short-lived due to the disappearance of frustration.
Physicists at University of Bonn create method to quickly and precisely sort large numbers of atoms, pushing development of future quantum computers forward. The technique allows atoms to interact with each other in targeted manner to exploit quantum-mechanical effects for calculations.
Researchers at the University of Alberta have discovered the precise atomic structure giving rise to negative differential resistance. This breakthrough enables practical applications in everyday electronics like phones and computers, promising faster, cheaper, and smaller devices.
Researchers have developed a 3D printable sonic tractor beam that can trap small beads, insects, and even biological samples using sound waves. The device is created by designing a metamaterial with tubes of different lengths, which shape the sound waves to create a trapping environment.
A collaborative effort demonstrates that the physical properties of SrTiO3 can be changed by a simple electrical treatment, creating the effect known as piezoelectricity. This discovery opens a new chapter for research into new materials and unusual properties.
A team of Indian researchers created a model to describe the diffusion of liquids through paper, revealing new theoretical details. The study aims to control liquid spreading for precise creation of products involving paper-based technologies.
A team of German researchers has developed a way to use microbubbles to power micro-robots wirelessly, offering multiple advantages over previous techniques. The approach allows for individual addressing, no on-board electronics, and scalability to sub-millimeter size.
Researchers have developed a formula to understand where quantum objects land when transmitted, offering insights for controlling open quantum systems. The formula suggests that 'rain gutters' and 'gates' can be engineered to manipulate quantum objects, either after they land or during their flow.
Researchers have developed a new fiber that offers higher tensile stroke and is triggered at temperatures lower than its predecessors, with potential applications in medical devices and self-healing materials. The fiber's unique geometry provides greater flexibility and thermal expansion/contraction properties.
A team of researchers has successfully demonstrated the synchronization of optical clocks across a low-lying, strongly turbulent, 12-km horizontal air path using a frequency comb. They achieved femtosecond-level clock synchronization by measuring the arrival time of pulses at each site and correcting for the finite speed of light.
UCSB researchers create high-performance tunable dielectrics using molecular beam epitaxy, overcoming material quality issues. The advancement enables adaptive electronic systems with potential applications in cellular communications and phased-array antennas.
A team of researchers at Jadavpur University in India has devised a way to recycle fish byproducts into an energy harvester that can generate electricity from mechanical stress. The energy harvester, made from fish scales, is capable of scavenging various types of ambient energies and powering small devices.
Researchers developed a miniature tabletop test device to study explosions with unprecedented accuracy, revealing key dynamics of hot spots. The new instrument helps control hot spots, crucial for safer explosives.
A research team has developed a method to 'freeze' newly created microbubbles in their tracks, enabling potential applications in medicine, such as ultrasound contrast agents and gas embolotherapy. This breakthrough could also improve the nuclear industry by controlling microbubbles in liquid sodium coolant.
Scientists have successfully fabricated monolayer graphene nanoribbons with well-defined zigzag edges, exhibiting high electron mobility and clean energy band gaps. This breakthrough could enable large-scale processing of high-quality graphene nanoribbons for spintronic devices.
Researchers at Yale University have created a novel system to encode, spot errors, decode and correct errors in a quantum bit, extending its lifetime more than three times longer than typical superconducting qubits. This breakthrough enables the use of Quantum Error Correction (QEC) for real computing.
Researchers at Drexel University have developed a fabrication method for swimming microrobots using just two conjoined microparticles coated with magnetic debris. The microswimmers can be controlled by an external magnetic field, allowing for control over speed and direction.
Researchers develop a novel approach to measure individual coating layers of automotive paints using time-of-flight measurements of ultrashort THz pulses. The algorithm-informed computer model resolves layer thicknesses below seven microns with high accuracy.
Droplets on a surface can catapult away contaminants without superhydrophobic coatings, inspired by pogo jumping. Researchers at Duke University and the University of British Columbia investigate this mechanism to develop more durable self-cleaning systems.
Researchers at NASA Ames discovered that varying hydrogen droplet sizes influence the burning process of liquid hydrogen-oxygen mixtures. The study reveals new mechanisms and requires a deeper understanding of evaporation and burning processes.
Scientists have developed a new nanoscale probe to study electrochemical properties, which could lead to significant improvements in battery and fuel cell performance. The device can measure local variations in material properties, allowing researchers to better understand how electrochemical systems work.
Researchers create simulation model to account for sphere roughness in experiments, enabling accurate measurements and electrical conductivity. The model predicts a sweet spot for optimal contact area, reducing friction and minimizing damage.
A team of Yale scientists has created a more exotic type of Schrödinger's cat-like state that can exist in two boxes simultaneously, leveraging entanglement to enable error correction and logical operations in quantum computing. This breakthrough builds upon decades of development in circuit quantum electrodynamics.
Scientists have developed a new technique to dope single-crystal diamonds with boron at relatively low temperatures without degrading the crystal. This breakthrough enables selective doping, allowing for more control when making devices.
Researchers are studying the lowest vocal register, called vocal fry, to better understand its emotional properties and how it affects listeners. The technique has become popular in pop and country music, with female singers' use of vocal fry rating them as more expressive.
A group of South Korean researchers combine superhydrophobic surfaces with Leidenfrost levitation to create highly water-repellent surfaces. The study reveals an anomalous water droplet-bouncing phenomenon generated by the combined impact of the Leidenfrost effect and nonwetting Cassie state.