Articles tagged with Atomic Forces
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Scientists at POSTECH and University of Montpellier successfully synthesized wafer-scale hexagonal boron nitride (hBN) with an AA-stacking configuration using metal-organic chemical vapor deposition (MOCVD). This achievement introduces a novel route for precise stacking control in van der Waals materials.
Camille Bilodeau's project uses AI and molecular simulations to design peptide-covered surfaces for targeted applications, including new medicines, water desalination, and semiconductor manufacturing. Her research group aims to develop a rapid predictive tool to understand surface-water interactions of tethered peptides.
Research team develops novel method to exploit frictionless sliding for improved memory performance and energy efficiency. The new technology enables unprecedentedly efficient data read/write operations while consuming significantly less energy.
Researchers at Tel Aviv University have developed a method to transform graphite into novel materials with controlled atomic layers, enabling the creation of tiny electronic memory units. This process, known as 'Slidetronics,' allows for precise manipulation of material properties, opening doors to innovative applications in electronic...
A new simulation method has been introduced to investigate the Earth's core, revealing significant effects of magnetism on material properties. The approach combines molecular dynamics and spin dynamics, using machine learning to determine force fields with high precision.
Researchers develop a computational method to determine the crystal structures of multiphase materials directly from powder X-ray diffraction patterns. This approach can analyze existing experimental data that was previously difficult to decipher, leading to potential discoveries of new material phases.
Researchers create high-quality hexagonal boron nitride (hBN) films just one atom thick using a new growth method. The films exhibit excellent insulating properties and are suitable for high-performance electronic devices.
A team of researchers developed a new technique combining methods to simulate molecules, achieving accuracy and efficiency on the Frontier exascale supercomputer. They broke records with simulations of over one million electrons and scaled their algorithm to an EFlop/s processing quintillion calculations per second.
Researchers successfully visualized tiny magnetic regions, known as magnetic domains, in a specialized quantum material using nonreciprocal directional dichroism. They also manipulated these regions by applying an electric field, offering new insights into the complex behavior of magnetic materials at the quantum level.
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.
Scientists at Tsinghua University and TU Wien have created a time crystal made of giant Rydberg atoms, exhibiting spontaneous symmetry breaking and oscillating light absorption. This breakthrough deepens our understanding of the time crystal phenomenon, offering potential applications in sensors.
Researchers at NCCR MARVEL have discovered a chain of copper and carbon atoms that forms the thinnest metallic nanowire stable at 0K. CuC2 has promising properties for flexible electronics, including its ability to be bent without losing its metallic behavior.
A research team at Waseda University has discovered a family of poly(thiourea)s (PTUs) with exceptional optical properties, including transparency over 92% and a refractive index of 1.81. The polymers can be easily degraded into simpler molecules, making them suitable for sustainable optoelectronic applications.
Researchers at Rice University have discovered a way to transform a rare-earth crystal into a magnet by using chirality in phonons. Chirality, or the twisting of atoms' motion, breaks time-reversal symmetry and aligns electron spins, creating a magnetic effect.
A team of researchers has made the first demonstrations of identifying and removing 'erasure' errors in quantum computing systems. By pinpointing and correcting for these mistakes, they can improve the overall rate of entanglement, or fidelity, in Rydberg neutral atom arrays.
Researchers at Tokyo University of Science have discovered a method to generate molecular ions from an ionic crystal by bombarding it with positrons. This breakthrough could lead to new applications in materials science, cancer therapy, and quantum computing.
Researchers at MIT have taken the first direct images of fermion pairs in a cloud of atoms, shedding light on how electrons form superconducting pairs that glide through materials without friction. The observations provide a visual blueprint for how electrons may pair up in superconducting materials.
Researchers have directly observed the signatures of electron orbitals in two different transition-metal atoms, iron and cobalt, using atomic force microscopy. The study validated that the observed experimental differences primarily stem from the different electronic configurations in 3d electrons near the Fermi level.
Scientists at Ohio State University have made a groundbreaking discovery, allowing them to view inside the deepest recesses of atomic nuclei. By studying how different types of particles interact with each other, they were able to map the arrangement of gluons within atomic nuclei with unprecedented precision.
Researchers studied the strong nuclear force using nickel-64 nuclei, discovering that they change shapes under high-energy conditions. The team used advanced detectors to analyze gamma rays and particle direction, revealing two possible shapes for the nucleus: oblate and prolate.
A breakthrough computer model from Chalmers University of Technology reveals the properties of an atomic nucleus, providing insights into the strong force that governs neutron star behavior. The model predicts a surprisingly thin neutron skin, which could lead to increased understanding of heavy element creation in neutron stars.
Researchers at Vienna University of Technology have measured the binding state of light and matter for the first time, creating an attractive force between ultracold atoms. This effect can be used to control and manipulate extreme temperatures and may also play a role in the formation of molecules in space.
Researchers developed a space-warp coordinate transformation (SWCT) method to accurately calculate atomic forces for elements with high atomic numbers. The study used quantum Monte Carlo simulations and found that the SWCT method reduces computational costs, resulting in more accurate calculations.
Researchers from Tokyo University of Science developed a high-quality crystalline interface using quasi-homo-epitaxial growth, which eliminated mobility issues and enabled spontaneous electron transfer. This breakthrough could lead to highly efficient flexible solar cells and wearable electronic devices.
Physicists at Technical University of Munich discover potential existence of tetra-neutron, a bound state of four neutrons, which could significantly alter our understanding of nuclear forces. The experiment's results suggest a half-life of 450 seconds and stability comparable to the neutron.
Researchers from Germany and Spain successfully create a uniform two-dimensional material with exotic ferromagnetic behavior known as easy-plane magnetism. This discovery opens up new possibilities for spintronics, a technology that uses magnetic moments instead of electrical charges.
NIST scientists use a novel technique to measure the properties of silicon crystals, revealing new insights into subatomic particles and the strength of a possible fifth force. The results provide improved precision and complementary information for both X-ray and neutron scattering.
Researchers discovered diverse behaviors in ultracold lithium atom spins influenced by magnetic forces. They used lasers to trap and arrange strings of 40 atoms each, inducing helical patterns that disappeared as individual spins approached equilibrium. The findings may help engineer spintronic devices and novel magnetic materials.
Researchers at Duke University have developed a simplified method to calculate the attractive forces between nanoparticles, allowing for faster simulations and potentially leading to breakthroughs in fields like solar energy and catalysis. The new approach has been shown to be accurate within 8% of the actual results.
Researchers developed CALM model to simulate pedestrian movement and predict disease spread on airplanes. The model produces results almost 60 times faster than SPED, enabling real-time decisions in emergency situations.
Chemists at the University of Tokyo have made groundbreaking discoveries about how molecules bind together, using a tiny cube structure to study dispersion forces. The team has found that polarizable atoms can create stronger dispersion forces, leading to increased stability in complex structures and potential applications in drug design.
Researchers at Imperial College London and the University of Nottingham have tested the possibility of a fifth force acting on single atoms, finding no evidence for its existence. This rules out popular theories of dark energy that modify the theory of gravity, leaving fewer places to search for the elusive force.
Engineers used network science to map atomic forces onto a complex graph, simulating macroscopic material behavior. The method simplifies the graph, allowing researchers to replicate the process with other materials.
A team of researchers has discovered a 'blind spot' in atomic force microscopy that can lead to incorrect results due to the use of certain force laws. However, they have also developed a new mathematical method to identify and avoid this issue, safeguarding atomic force measurements from inaccurate results.
Researchers at UC Berkeley found that blackbody radiation from a warm object can attract cesium atoms, with an effect 20 times stronger than gravity. This discovery has implications for precise measurements of fundamental constants and tests of general relativity.
Researchers at SISSA have developed a theoretical framework to detect confinement in ferromagnetic systems by analyzing the shape of correlations between particles. The study suggests that a flask-shaped graph indicates confined particles, providing a promising tool for experimental verification.
Researchers activate a single molecule switch using an atomic-force probe, revealing the need for precise positioning and chemical reactivity. The study's findings could lead to new control of chemistry at the atomic level.
Researchers at the Swiss Nanoscience Institute and University of Basel measured van der Waals forces between individual atoms for the first time. The forces varied according to distance, with some cases showing values several times larger than calculated.
Physicists harness superradiant state to study dynamic phase transitions, mirroring water cycle and Higgs field condensation. The experiment introduces a controlled coupling to the environment, expanding scope for understanding imperfect crystallization and defects.
Researchers at Joint Quantum Institute develop universal theory for Efimov states, enabling prediction of chemical processes involving three or more atoms. The new theory successfully incorporates short-distance regime and van der Waals force, predicting a series of Efimov states with varying binding energies.
A team of researchers from Weizmann Institute and Vienna University of Technology proposed a method to amplify vacuum fluctuations by several orders of magnitude using a transmission line. This could lead to enhanced understanding of Casimir- and Van der Waals forces, with potential applications in quantum information processing.
Theoretical predictions show that controlled noise from an environment can bind repelling atoms together, creating a bound state with exotic properties. This novel mechanism could lead to improved cooling of atomic quantum gases.
Researchers at the University of Pennsylvania have developed a new microscopy method to study wear at the atomic scale. They successfully demonstrated the transfer of material from one surface to another, revealing the mechanisms behind this process. The findings provide crucial insights into improving nanoscale devices and machines.
A new model provides an alternative description of atomic-level gold bonding, taking into account bond directionality. The Tersoff potential model allows for reliable covalent bonds between gold atoms and other materials.
A Griffith University research team has successfully photographed the shadow of a single atom for the first time. The achievement is made possible by a super high-resolution microscope that allows the creation of a darker image, enabling its capture. This technology has far-reaching implications for quantum computing and biomicroscopy.
Researchers discover several new phases of atomtronic matter, including a 'bond-order solid' with strong long-range dipole interactions. These phases are associated with the controlled movement of ultracold atoms in an optical lattice and have potential applications for data encoding and quantum computing.
Researchers discovered that gold bridges composed of a single atom are stiffest, contrary to everyday intuition. This finding is crucial for understanding the behavior of tiny components in devices like computer circuits.
Researchers at the University of Arizona have created a sophisticated experimental setup to measure the interactions between single atoms and surfaces. The technique refines our understanding of the van-der-Waals force, which is crucial for chemistry, biology, and physics.
Researchers at the University of Michigan have built a more efficient Rydberg atom trap, which could enable faster quantum computers. By trapping giant Rydberg atoms, they can create stronger quantum circuits and solve complex problems that conventional computers cannot.
Researchers use atom interferometer to confirm idea that atomic wave shortens and lengthens depending on distance from surface. The measurement tells nanotechnologists how small devices can be before van der Waals interaction becomes a concern.
Researchers found that a short distance of 2.53 angstroms between iron atoms in peroxide-bridged ferritin intermediate favors biomineralization process over oxygen activation. The study uses analytical techniques to probe molecular structure and collaboration with experts from different disciplines.
Stanford researchers used atom interferometry to measure the force of gravity on individual atoms with unprecedented accuracy. Their findings strengthen the likelihood that previous neutron interferometry experiments were incorrect, validating the power of atom interferometry as a precise measurement tool.
A Duke University theoretical chemist has developed a divide and conquer method to model electronic structures of large molecules with reduced calculations. The technique enables researchers to precisely describe electron interactions, providing a more refined picture of molecule behavior.
Researchers at Columbia University and IBM used X-rays to measure changes in atomic structure as electric current flowed through tiny wires. They found large stresses of up to 50,000 pounds per square inch, which can damage wires and their insulation.
MIT researchers verify coherence property in atomic beam, a key attribute of optical lasers, and extract controlled fraction of atoms from Bose-Einstein condensate to produce directional stream. This breakthrough may lead to significant innovations in nanotechnology and precision measurements at the quantum level.