Articles tagged with Diamond
Researchers at OIST have fabricated a novel glass and synthetic diamond foundation for tiny structures, offering a low-cost and sustainable alternative to current methods. The new substrate enables the creation of miniscule micro- and nanostructures with minimal waste.
Researchers identified 43 previously unknown forms of superhard carbon, including structures with fragments of diamond and lonsdaleite. The study uses computational techniques and machine learning to accelerate material development, predicting properties such as hardness.
Researchers from NUST MISIS and international partners created a new material by quenching rhenium to ambient pressure. The material preserved its properties even under normal atmospheric pressure. Using theoretical modeling, they recreated the process in laboratory conditions.
Scientists have detected the presence of an ancient reservoir in the Earth's mantle using helium isotope ratios in superdeep diamonds. The reservoir is estimated to be at least as old as the Moon and is located between 410 and 660 km below the surface.
Researchers have created a predictive model to guide the synthesis of new materials that are tough enough for the mining and space industries. The 'Mendelevian search' algorithm considers all possible combinations of elements in the periodic table, resulting in highly accurate predictions of material properties.
Researchers at Yokohama National University successfully teleported quantum information within a diamond, enabling the transfer of sensitive data without destruction. The technique uses entangled particles and photon storage to achieve quantum teleportation.
Researchers at ETH Zurich have developed a new method to directly track the precession of single nuclear spins, allowing for precise molecular analysis. This breakthrough enables scientists to study molecules at the atomic level, with potential applications in fields like materials science and chemistry.
Scientists have recreated the conditions of the Earth's mantle, where diamonds form, by simulating extreme pressure and heat. They found that the sediments represent a plausible source of potassium for the saline fluid inclusions in diamonds.
Researchers at Penn engineered a nanostructured diamond metalens to collect light from defects in diamonds, which harbor electron spins suitable for quantum computing. The metalens guides light into an optical fiber, streamlining data collection and enabling compact quantum devices.
A new classification system could better understand mineralogy as a process of universal and planetary evolution by accounting for minerals' distinct journeys. This system, proposed by Robert Hazen, groups minerals into natural kind clusters that reflect the inherent messiness of planetary evolution.
New research has confirmed that salts trapped in many diamonds come from ancient seabeds buried deep beneath the Earth's crust. Marine sediment reacts under extreme pressures and temperatures to produce a balance of salts found in diamond.
Scientists create precise nitrogen-vacancy colour centres in diamonds using a new method, enabling the production of arrays of single NV centres with exactly one colour centre at each site. This facilitates the engineering of integrated devices and paves the way for the delivery of compact and robust quantum technologies.
Researchers at the University of Washington developed a method to synthesize nanodiamonds with intentional doping, enabling useful traits for medical research, computation, and beyond. The team used high-pressure and temperature to dope nanodiamonds with silicon, argon, and other elements.
Researchers developed a highly-sensitive nano-thermometer that accurately measures temperature at the nanoscale using diamond nanoparticles. The sensor exploits the properties of these tiny particles on the quantum level, enabling non-invasive temperature measurements in biological samples and electronic circuits.
Researchers used diamond inclusions to study the formation of mantle keels, which stabilize continental crust. The study found that thickening and stabilization occurred when mantle sections were squeezed by ocean floor material, resolving a long-standing debate.
Research suggests that eclogitic diamonds originate from oceanic crust, not marine sediments, providing new insights into diamond formation and the deep carbon cycle. The study found that the oceanic crust contains a large reservoir of carbon, which is then recycled into diamonds in Earth's mantle.
A new theory by QUT geologist Professor Balz Kamber explains why diamonds formed as precious gemstones rather than graphite, contradicting a common belief. The study suggests the upper mantle was relatively cool, leading to diamond formation during the Archaean era.
Recreating Earth's interior conditions helps scientists understand diamond formation and carbon transport in the mantle. Carbonate minerals remain stable up to depths of 1,000-1,300km before reacting with surrounding silica to form bridgmanite.
A new hardware platform based on isolated electron spins in a two-dimensional material was demonstrated by researchers at the University of Pennsylvania. The system utilizes defects in sheets of hexagonal boron nitride to manipulate individual quantum states, enabling potential applications in quantum technology and sensing.
Researchers at MIT and international partners have developed an AI-powered method to explore the possibilities of strain-engineered materials. By applying machine learning methods, they can accurately predict how different amounts and orientations of strain would affect a material's properties.
Scientists have created a high-quality diamond MEMS sensor chip that outperforms existing silicon sensors in terms of sensitivity and reliability. This breakthrough could enable the development of highly sensitive and reliable sensors for various applications, including disaster prevention and medicine.
Researchers have discovered that nanodiamonds can be used as photocatalysts to produce methanol from CO2 and water. The process requires UV light excitation but recent studies suggest that intermediate stages can be created in the band gap by doping with foreign atoms, enabling visible spectrum usage.
Researchers developed a computer model that simulates the conditions of explosions on short time scales. The new results reveal that a delicate balance of temperature and pressure is necessary for nanodiamonds to form. This study uses atomic-level simulations to provide insights into the formation process.
Researchers at TU Wien have measured the phenomenon of superradiance in tiny diamond defects, where one atom causes other atoms to emit energy as light. This creates an intense flash of quantum light that happens within 100 nanoseconds.
Hydroxyl-terminated diamond surfaces created via water vapor annealing maintain atomically flat surfaces and remove two-dimensional hole gas layers, enabling high-temperature operation.
Sandia National Laboratories engineers a platinum-gold alloy that surpasses diamond and sapphire in wear resistance, making it ideal for high-friction applications. The new alloy could save the electronics industry over $100 million annually by reducing material costs and improving durability.
Researchers discovered that blue diamonds form at least as deep as the transition zone between the upper and lower mantle. The boron element was incorporated into water-rich minerals like serpentine during geochemical reactions between seawater and oceanic plate rocks, traveling far deeper into the mantle than previously thought.
Researchers successfully created nitrides, a previously considered impossible material, using a direct synthesis method under ultra-high pressure. The development of these materials could lead to improved cutting tools and innovative applications in electronics.
Contrary to expectations, diamond doves don't adjust their movements to accommodate flexible perches. They use generalized behaviors regardless of perch stiffness, losing energy during takeoff on flexible branches.
Researchers found that cratonic roots may contain 1 to 2 percent diamond, with a total estimated value of quadrillion tons. The discovery challenges previous assumptions about the rarity of diamond and sheds light on the geological scale of its presence.
Princeton researchers successfully implant diamonds with silicon vacancies to create a quantum repeater, enabling the transmission of fragile quantum information over long distances. This breakthrough could lead to ultra-secure communication networks and new quantum computers solving complex problems.
Scientists have created high-thermal-conductivity crystals of boron arsenide that could help manage heat in computer chips. The new material's properties make it comparable to silicon, a key component of current chip technology.
Researchers have discovered a new tungsten boride that surpasses the widely used 'pobedit' material in terms of hardness and fracture toughness. The new compound, WB5, can be synthesized at normal pressure and has potential applications in various fields including drilling and machine building.
Researchers create method to detect individual phonons, enabling study of phonon decay and its implications for quantum technologies. The technique uses ultra-short laser pulses to excite and probe phonons in diamond crystals.
Researchers from MIPT and TISNCM developed a new type of nuclear battery using nickel-63 that packs about 3,300 milliwatt-hours of energy per gram, exceeding previous records. The battery achieves a power density 10 times higher than commercial chemical cells, making it suitable for powering small devices.
A recent study from UNIST has unveiled a new method for growing elastic diamonds, which can bend and stretch up to 9% without breaking. This breakthrough challenges previous theories that diamonds are brittle and opens possibilities for tuning their optical and optomechanical properties.
Scientists create new diamond etching process using solid-solution reaction of carbon into nickel at high temperature, enabling continuous diamond etching at a high rate. This technology avoids plasma damage and allows for selective etching of diamond in direct contact with nickel.
Harvard researchers engineered diamond strings that can quiet a qubit's environment and improve memory from tens to several hundred nanoseconds, enough time for many operations on a quantum chip. This breakthrough could serve as the backbone of a future quantum internet.
Scientists have discovered a way to exploit defects in nanoscale diamonds to enhance the sensitivity of magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR) systems. The technique could lead to low-cost alternatives to multimillion-dollar medical imaging and drug-discovery devices.
A new film, 'Voices from the Mine', sheds light on the human costs of artisanal diamond mining in Sierra Leone, where miners face poverty and hardship despite the industry's $250 million annual value. The film highlights the need for a more nuanced understanding of the diamond trade, particularly among consumers and policy makers.
Researchers from ITMO University developed a controlled light source based on nanodiamond, doubling emission speed without additional nanostructures. The artificial defects in the diamond crystal lattice enable efficient control of light emission, crucial for quantum computers and optical networks.
Scientists have successfully engineered defects in diamonds to store and transfer quantum information, a crucial step towards quantum computing. The technique uses vibrations from a mechanical resonator to stabilize optical properties, enabling the manipulation of electron orbitals.
Research by NTU's Professor Subra Suresh and his team reveals diamond nano-needles can be stretched up to 9% without breaking, opening new avenues for applications in bioimaging, biosensing, drug delivery, data storage, and ultra-strength nanostructures.
Researchers have discovered that diamond can bend and stretch by up to 9 percent without breaking when grown in extremely tiny needle-like shapes. This finding could lead to the development of diamond-based devices for various applications, including biocompatible imaging and drug delivery.
Researchers have discovered a way to make diamonds flexible by etching tiny needles from artificial diamond films, achieving strains up to 9% and surpassing theoretical limits. The development holds implications for bioimaging, biosensing, and ultra-strength nanostructures, as well as optomechanical devices.
Researchers developed a hydrogenated diamond circuit operational at 300 degrees Celsius, outperforming silicon-based devices in terms of efficiency and temperature resistance. The discovery has potential to improve energy savings and enable the construction of smaller, lighter electronic devices.
A new technique uses engineered diamond crystals to increase the strength of magnetic field produced by molecules, increasing their signal when measured by MRI. This could enhance imaging sensitivity for patient diagnosis and personalized medicine.
Researchers used the Advanced Photon Source to identify naturally occurring water at 410 kilometers below the Earth's surface, in the form of Ice-VII, a cubic crystalline form of water. This discovery could change our understanding of how water circulates deep in the Earth's mantle and how heat escapes.
Researchers at Imperial College London have developed a new maser that operates continuously at room temperature, leveraging synthetic diamond to achieve this feat. The discovery has significant implications for various fields, including medical imaging, airport security scanning, and deep space communication.
Japanese researchers have optimized laboratory-grown diamond structures to detect magnetic fields, enabling new biosensing applications. The design uses nitrogen-vacancy centers with stable negative charge states, reducing noise and increasing detection accuracy.
Researchers discovered crystallized water trapped in diamonds formed at extreme depths, challenging previous assumptions about diamond origins. The study suggests water may exist in the lower mantle, potentially affecting ocean water recycling and Earth's internal dynamics.
Australian researchers at RMIT University have successfully coated 3D printed titanium implants with diamond, improving biocompatibility and reducing bacterial attachment. The breakthrough could lead to radical improvements in biomedical implants and orthopedic procedures.
Researchers found unique diamond impurities containing Ice-VII, a naturally occurring aqueous fluid from the deep mantle. This discovery provides evidence of water-rich regions deep below the Earth's crust and has significant implications for understanding the planet's inner workings.
Researchers have discovered a diamond containing the fourth most abundant mineral in Earth, calcuim silicate perovskite, at the surface. This finding suggests that oceanic crust is recycled into the lower mantle, with potential implications for our understanding of Earth's core.
Researchers discovered diamond formation from ankerite through spontaneous iron reduction, suggesting a possible mechanism for abundant diamond creation in Earth's lower mantle. The process occurs without melting at high pressures and temperatures, similar to those found in meteoritic impact zones.
Scientists have discovered a new method to trigger chemical reactions using tiny diamond anvils, which can break bonds and trigger electron transfers without heat or solvents. This breakthrough could lead to more precise and environmentally friendly chemistry.
Researchers have successfully fabricated nanocrystalline diamonds using plasma vapor deposition, enabling the creation of micro-anvils with pressures up to 500 gigapascals. The high-pressure capabilities of these nanocrystalline diamonds hold promise for studying materials under extreme conditions.
Researchers have demonstrated the potential for diamond as a material for spintronics, with strong spin-orbit coupling and tunable magnetic field control. Diamond's ease of processing and fabrication make it an attractive alternative to traditional semiconductor materials.
Researchers used UV laser photolysis to improve diamond synthesis by suppressing unwanted side products. The technique promotes faster and better-quality diamond growth, opening up new possibilities for material synthesis.
Researchers at CUNY's Advanced Science Research Center discovered a process to create a diamond-like material from two-layer graphene that becomes harder than diamond upon impact. This innovation has potential applications in wear-resistant protective coatings and ultra-light bullet-proof films.