Articles tagged with Crystals
Researchers have developed a new simulation method to study polarons in 2D materials, which could lead to breakthroughs in OLED TVs and hydrogen fuel production. The study uses quantum mechanical theory and computation to determine the fundamental properties of polarons in 2D materials.
Channeling ions into grain boundaries in perovskite materials improves the stability and operational performance of perovskite solar cells, paving the way for more efficient and practical solar cell technologies. This breakthrough finding may also inform the development of more efficient energy storage technologies.
A recent study by Crystal Lim found that obesity prevention programs combining nutrition and exercise components over an extended period had the most success in changing students' daily behaviors. Successful programs also included evidence-based strategies like goal setting, problem solving, and self-regulation techniques.
A new solid-state crystal growth (SSCG) technique has been developed to manipulate materials' properties by controlling crystallographic orientation. This method allows for large single crystals with desired orientations to be grown easily and inexpensively.
Princeton researchers have achieved a major breakthrough by microscopically studying molecular gases at a level never before achieved. The team cooled molecules to ultracold temperatures, observed individual molecules with high spatial resolution, and detected subtle quantum correlations, opening up new avenues for many-body physics re...
Researchers have developed a van der Waals crystal featuring monolayer-like excitonic behavior in bulk form, leading to a verified weak interlayer electronic coupling. The crystal enables a spontaneous parametric down-conversion process, resulting in a detection of one photon heralding the presence of another.
Researchers identify the (100) facet as prone to degradation, while the (111) facet is more stable and resistant to moisture and heat. By using facet engineering, they develop strategies to grow the stable (111) facet, leading to exceptionally stable perovskite films.
Scientists successfully created a light source that produced two entangled light beams using rubidium atoms. The entanglement was achieved by adding new detection steps to measure the quantum correlations in the amplitudes and phases of the fields generated, enabling applications in quantum computing, encryption, and metrology.
The study investigates the anisotropy dependence of damage evolution and material removal behaviors in ultra-precision machining of MgF2 single crystals. The research team developed a stress field model, revealing that plastic deformation and cleavage fracture mechanisms were activated depending on the crystal orientation.
Researchers at Rice University have developed a method to predict the shapes of crystals that lack symmetry by assigning arbitrary latent energies to their surfaces. This approach uses closure equations with arbitrary parameters to mimic nature's solution, allowing for accurate crystal shape predictions.
Scientists at Tel Aviv University have developed a method to create the thinnest possible ladder steps made of distinct electric potentials, which can be used as independent information units. The discovery enables the creation of novel devices with potential applications in electronics and optomechanics.
Researchers at Osaka Metropolitan University have discovered a unique phase transition in crystals that combines crystalline and amorphous characteristics. This finding has significant implications for developing hybrid materials with improved properties for use in extreme environments, such as outer space.
A team of researchers from NIST, UW-Madison, and Argonne National Laboratory identified key compositions that enable consistent 3D-printing of 17-4 PH stainless steel with favorable properties. The new findings could help producers cut costs and increase manufacturing flexibility.
A multi-institution team led by IU chemist Sara Skrabalak has been awarded $1.8 million to establish a research center focused on rapidly identifying and leveraging the unique properties of nanocrystals. The Center for Single-Entity Nanochemistry and Nanocrystal Design aims to transform how researchers think about nanocrystal diversity...
Scientists have found a novel structure in bismuth oxychloride, featuring a sextuple Bi-O layer composed of rock-salt and fluorite units, which enhances photocatalytic activity. This discovery could lead to improved hydrogen production material designs.
Scientists at the University of Tsukuba developed a method to produce uniform, hollow vessel-shaped crystals through spontaneous crystal growth. The crystals have hexagonal symmetry and can be used as tiny containers for nanotechnology experiments.
Researchers found gout is more prevalent among Black adults in the US compared to White adults, with differences attributed to factors like poverty and body mass index. The study used nationally representative data from 2007-2016 and suggests that culturally sensitive efforts could help reduce disparities.
Researchers from the Institute of Industrial Science, The University of Tokyo, found that preordering significantly influences crystal growth and nucleation. Their study proposes modifications to address shortcomings in classical nucleation theory.
Researchers from Tokyo University of Science create a metal–organic framework-based magnesium ion conductor showing superionic conductivity at room temperature, overcoming the limitations of magnesium ion-based energy devices. The novel Mg2+ electrolyte exhibits a high conductivity of 10−3 S cm−1, making it suitable for battery applica...
A new study explores the characteristics of 36 basic variants of the Holliday junction, a fundamental building block used in DNA nanoforms. The results show that sequences forming the four protruding arms of the junction can enhance or hinder crystallization processes.
A team of researchers used resonant inelastic X-ray scattering to study the behavior of electron spins in iron selenide, a material that exhibits directionally-dependent electronic behavior. They found that high-energy spin excitations are dispersive and undamped, indicating a well-defined energy-versus-momentum relationship.
Scientists have found a novel pathway for forming smaller crystals in metals, leading to improved strength and toughness. By bombarding metal surfaces with tiny particles at high speeds, researchers increased copper's strength about tenfold.
Researchers at NYU Abu Dhabi have discovered that organic crystals can efficiently convert energy, meeting the needs of advanced technologies such as soft robotics and artificial muscles. The material's ability to expand and contract repeatedly without deterioration makes it suitable for applications in electronics.
Researchers discovered that light can trigger magnetism in normally nonmagnetic materials by aligning electron spins. This breakthrough could enable the development of quantum bits for quantum computing and other applications.
Scientists have discovered a novel way to prevent the formation of ice crystals in ice cream by adding cellulose nanocrystals. The additive, which is more effective than current stabilizers, works by stopping the growth of ice crystals and slowing down their recrystallization process.
A team of scientists led by Samuel Dunning has developed an original technique to predict and guide the ordered creation of strong, yet flexible, diamond nanothreads. The innovation allows for easier synthesis of the material, which has potential applications in space elevators, ultra-strong fabrics, and other fields.
Researchers at Goethe University Frankfurt have grown crystals with rare-earth atoms that exhibit surprising fast magnetic properties. The team found that the strength of these reactions can be adjusted by choosing different atoms, opening up possibilities for optimizing spintronics components.
Researchers develop small-molecule serial femtosecond crystallography, enabling precise analysis of complex materials. The technique reveals accurate atomic structures of previously unsolvable compounds.
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.
The study found that certain grain boundaries in strontium titanate exhibit enhanced thermal expansion, leading to potential material failures. This discovery highlights the importance of grain boundaries in material properties and has implications for selecting suitable materials for various applications.
Researchers have created a microcrystal that utilizes self-continuous reciprocating motion for propulsion, enabling the microrobot to move itself sustainably in water. The microrobots exhibited different styles of propulsion and were affected by fin length, ratio, and elevation angle.
Researchers have synthesized a new form of carbon glass with three-dimensional bonds, the hardest known glass material. The discovery has potential for mass production and opens up new possibilities in devices and electronics.
Osaka University researchers have successfully synthesized a stable, crystalline nanographene with predicted magnetic properties, opening the door to revolutionary advances in electronics and magnets. The breakthrough uses a simplified model system called triangulene, which has long been elusive due to polymerization issues.
Researchers develop new epitaxial growth mechanism to achieve large-scale single-crystal WS2 monolayers, overcoming a crucial hurdle in replacing silicon with 2D materials. The technique enables uniform alignment of small crystals and leads to the successful growth of wafer-scale single-crystals of WS2, MoS2, WSe2, and MoSe2.
The CryForm project aims to replace synthetic stabilizing agents with crystalline materials, enabling innovative multiphase formulations for safer, more sustainable and affordable products. The project will develop biocompatible crystals for pharmaceutical, cosmetic and food applications, contributing to the European Green Deal.
Researchers from South Ural State University discovered the reasons for the stability of salts, attributing it to the properties of electron density distribution. The study reveals the importance of chemical bonding in multi-centre character, paving the way for predicting material properties.
Scientists at New York University have developed seven new crystal forms of the insecticide imidacloprid, which work up to nine times faster than the original version. The new forms enable the control of disease-carrying mosquitoes in smaller amounts and with reduced environmental impact.
Scientists at UChicago have invented a new thermal insulator with unusual properties. The material, made using an innovative technique, is extremely good at containing heat while also allowing it to be moved in different directions.
Researchers developed a simple and fast way to create complex semiconductors by growing 2D perovskites precisely layered with other materials, resulting in crystals with wide electronic properties. The assembly takes place in vials where chemical ingredients tumble around in water, with barbell-shaped molecules directing the action.
Researchers from the University of Tsukuba have discovered that ultraviolet light can modulate oxide ion transport in a perovskite crystal at room temperature. This enables the enhancement of future battery and fuel cell functionality by increasing energy storage and output efficiency.
Researchers have discovered a room-temperature transition between 1D and 2D electrical conduction states in topological crystals of bismuth and iodine. The material's electronic behavior changes at a transition temperature around 80 degrees Fahrenheit.
Researchers at the University of Texas at Dallas have produced large, high-quality bismuth iodide crystals that demonstrate the existence of weak topological insulators. The crystals undergo a phase transition into a novel structure at room temperature, altering their electronic properties.
Siddha Pimputkar, an assistant professor at Lehigh University, has received the American Association for Crystal Growth (AACG) Young Scientist Award for his outstanding contributions to crystal growth. His research focuses on synthesizing bulk and thin-film single-crystal nitrogen-containing materials.
Researchers have developed a new approach to trapping and moving nanodiamonds using low power laser beams. This breakthrough enables faster and more efficient manipulation of these carbon-based materials, which are crucial for future quantum photonics applications.
Researchers at Waseda University have developed a novel mechanism for inducing high-speed bending in thick crystals using the photothermal effect, enabling rapid actuation and simulation. This breakthrough has significant implications for flexible robotics, actuators, and soft robotics.
Researchers at Tohoku University studied Zinc-Oxide crystals' IQE in both light-emitting and non-light-emitting processes. The study found that deceleration of the non-light-emitting process, due to saturation of NRCs, dominated IQE increase.
Researchers found that sapphire crystal faces exhibit contact angles far greater than 10°, with the (1-102) face being hydrophobic. This discovery provides insights into intrinsic wettability and its potential applications in materials science and technology.
Scientists used dynamic in-situ x-ray diffraction to observe how a crystalline sponge changed shape as it lost water molecules. The study found that one water molecule leaves quickly, causing the crystal lattice to compress and twist, while the other two molecules leave together.
Chirality-induced spin selectivity (CISS) research reveals electrons are spin-polarized when passing through non-magnetic chiral molecules or crystals like CrNb3S6. This phenomenon is puzzling, but it may enable the creation of spin-polarized states in materials without magnets.
A new study provides early evidence that COVID-19 lockdowns affect people's mental and physical health, with adults in more affected locations experiencing lower life satisfaction. Researchers found that exercising less than 2.5 hours per day was associated with positive life satisfaction in these areas.
Cornell structural biologists develop a new method to capture collective protein motion, revealing subtle breathing motions that direct biochemical function. The technique adds valuable information to regular crystallography experiments.
The study reveals that applying strain to monolayer AlN crystals can enhance the efficiency of even and odd harmonics radiated under ultrafast laser excitation. Researchers found that strain-dependent electronic transitions result in different harmonic spectra, providing a new reference for studying semiconductor dynamics.
Several studies presented at the symposium use system dynamics, modeling and risk analysis to address human trafficking. NGO actions often fail to understand the context before taking action, resulting in ineffective policies.
Scientists at the University of Vienna developed two solutions to overcome limitations in analyzing small crystals with electron radiation. By disturbing the carrier material or covering it with nylon fibers, researchers can achieve a complete 3D view of the crystals, enabling more accurate structure analysis.
Researchers introduce trace amounts of samarium into PMN-PT crystals, significantly enhancing their piezoelectric properties. The results show nearly double the performance of traditional materials.
Scientists at Berkeley Lab have discovered a new state of quantum matter exhibiting nearly ideal topological surface properties due to its chirality. The spiral-crystal topological chiral conductor shows exceptional electrical conductivity with minimal resistance.
Researchers have discovered a persistent pattern in the arrangement of islands that form on crystal surfaces during layer-by-layer growth. The study uses coherent X-ray scattering to reveal correlations across the sample, providing insights into crystal growth dynamics and potential applications in materials science.
Researchers at IRB Barcelona achieved the first stable simulations of DNA crystals, providing detailed atomic descriptions of their properties. This accomplishment allows for optimized crystallization conditions and protocols for biophysicists and computational physicists/chemists.
Scientists observed a material's phase change when triggered by ultrafast laser light instead of temperature change. The process generates topological defects and affects electron dynamics. Researchers can potentially use this phenomenon for data storage systems using controlled light pulses.
Scientists at NUST MISIS discover that molybdenum disulfide, a promising basis for ultra-small electronic devices, degrades in air due to spontaneous oxidation. However, they also found that the material can be transformed into a solid solution MoS2-xOx, which is an effective catalyst for electromechanical processes.