Articles tagged with Diamond
Deeply subducted serpentinite rocks are found to carry surface water as far as 700 kilometers into the mantle, allowing scientists to trace material exchange. The presence of these rocks confirms a long-suspected pathway for deep-Earth recycling.
Researchers at Washington State University have created hexagonal diamonds using sound waves, finding them stiffer than natural cubic diamonds. The discovery could lead to the development of superior materials for machining and drilling, potentially replacing traditional diamond in these industries.
Researchers used lab tools to mimic extreme conditions, redefining the conditions under which carbonates can exist in the Earth's lower mantle. The study expands our understanding of the deep carbon cycle and the Earth's evolution.
A team of researchers at the University of Tsukuba demonstrated second-order nonlinear optical effects in diamonds using internal color center defects. This breakthrough may lead to faster internet communications, all-optical computers, and quantum sensing technologies.
Physicists at Johannes Gutenberg University Mainz have combined two quantum sensing techniques to analyze a sample, enabling the mapping of magnetic fields and magnetization. The technique uses diamond color centers in diamond probes to provide a sensitivity that opens up new measurement options.
Researchers at Lund University have successfully injected large numbers of nanodiamonds into living cells, providing a novel means to monitor cellular activity over time. This technique has potential applications in separating healthy cells from diseased ones and targeting disease-causing proteins.
Scientists demonstrate precise positioning of transition-metal dopants in graphene, opening doors to exotic electronic, magnetic, and topological properties. Meanwhile, a new diamond anvil pressure cell enables high-pressure science not possible elsewhere, revealing insights into super-hydrides and earth-core pressure conditions.
Nitrogen-bearing diamond crystals have been shown to produce high-quality X-ray beams due to their superior thermal conductivity and coefficient of expansion. Despite historical concerns over their quality, researchers from BFU successfully manufactured plates with sufficient defect-free areas using a unique device.
A team of researchers has successfully fabricated atomically thin, 2D hexagonal boron nitride (h-BN) films that phase transition to strong, super lightweight cubic boron nitride (c-BN) at room temperature. The findings reveal a promising material for protective coatings, nanotechnology thermal applications, and deep-UV light emitters.
Researchers have found that tiny diamonds can form in the presence of small electric fields, which play a central role in their creation. The experiments conducted by the Russian research team showed that applying less than one volt triggers a chemical transformation process, resulting in pure carbon in the form of diamond.
Researchers have found a novel solution to stabilize the unstable black phase of a lead halide perovskite, which has potential for being cheaper and easier to manufacture than current silicon solar cells. The stable material remains resistant to deterioration and efficient at room temperature.
Researchers have created putty-like composites of gallium metal with improved handling properties, enabling new applications in wearable devices and medical implants. The composites also exhibit excellent electromagnetic interference shielding and thermal interface materials properties.
Researchers have created microfabricated elastic diamonds that can stretch up to 10% without losing their shape. This controlled elasticity changes the diamond's electronic properties, including a reduced bandgap, making it suitable for advanced electronics and quantum information technologies.
Researchers have successfully stretched diamond to achieve large, uniform tensile elastic straining, opening up new possibilities for advanced functional devices. The findings suggest the potential of strained diamonds as prime candidates for microelectronics, photonics, and quantum information technologies.
Scientists propose a new way to categorize minerals by incorporating historical data, highlighting the importance of understanding a sample's formation process. The IMA system is criticized for being time-independent, while the proposed approach uses 'historical natural kinds' to reflect changes in Earth's diversity.
Physicists propose an experiment to test if gravity is a quantum phenomenon, involving entangled diamonds in freefall. A conducting copper plate shields the Casimir effect, reducing noise and making the experiment less demanding.
Researchers successfully produce two types of diamonds, including Lonsdaleite and regular diamond, at room temperature by applying high pressures and 'shear' forces. The discovery paves the way for new uses of this rare and super-hard material.
Researchers from Osaka University have successfully polished a single-crystal diamond wafer to near-atomic smoothness using plasma-assisted polishing, which could enable the material's use in high-performance power devices and heat sinks. The technique avoids damaging the crystal structure and preserves its chemical properties.
Researchers at Rice University have developed a new method to create nanodiamond from graphene by applying pinpoint pressure, overcoming the energetic barrier to nucleation. This breakthrough could lead to the creation of single-crystal diamond films for electronics and optical applications.
Researchers have discovered natural nanodiamonds in oceanic rocks, confirming the formation of diamonds under low-pressure conditions. The discovery was made in Cuba's Moa-Baracoa Ophiolitic Massif and provides new insights into the geological processes that form these valuable gemstones.
Researchers have developed an ultra-sensitive hybrid nanothermometer that can detect small temperature changes in ambient conditions. The device uses a nitrogen-vacancy center in diamond and a magnetic nanoparticle to measure thermal signals with a precision of 76 microkelvin per second.
Researchers at the University of the Witwatersrand have made a groundbreaking discovery in diamond, uncovering triplet spin superconductivity. This phenomenon has significant implications for the development of new technologies, including radiation detectors and advanced electronics.
Researchers at the University of Alberta found diamonds in a small rock sample atop an unrealized gold deposit in Canada's Far North. The discovery provides insights into the thermal conditions of Earth's crust three billion years ago and suggests the presence of kimberlite or similar rocks that can carry diamonds to the surface.
Researchers have discovered a way to engineer diamond's electrical conductivity without altering its chemical composition. By applying mechanical strain, they can reduce the bandgap and make diamond conduct electricity like metals, paving the way for novel applications in power electronics, quantum sensing, and more.
Researchers have discovered a method to convert diamond into a metal-like conductor by applying mechanical strain. This process, known as metallizing diamond nanoneedles, could lead to the development of new electronics and quantum sensing technologies.
By straining diamond to change its electronic properties, researchers can dial it from insulating to highly conductive, or metallic. This breakthrough could lead to the development of new optical devices, quantum sensors, and high-efficiency solar cells.
An international research team found large diamonds and nanodiamonds in ureilite meteorites, suggesting they formed through massive impact events rather than continuous pressure in planetary precursors. The discovery challenges existing theories and provides insights into the extreme forces that shaped the early solar system.
A landmark discovery at New York University has developed a method to create colloids that crystallize into the diamond lattice, enabling cheap and reliable fabrication of 3D photonic crystals for optical circuits. This breakthrough could lead to lightweight high-efficiency lasers, precise light control, and new materials for managing ...
Researchers found micrometer-sized and nanometer-sized diamonds, along with metallic iron and graphite, in ureilite meteorites. The discovery suggests that diamond formation does not require a Mars-sized parent body, contradicting previous theories.
Researchers led by David Pine have devised a new process for the reliable self-assembly of colloids in a diamond formation, which could lead to cheap, scalable fabrication of colloidal diamonds. This breakthrough discovery holds promise for advanced optical technologies, including high-efficiency lasers and precise control of light.
A University of Alberta PhD student has shed new light on the Earth's carbon cycle using diamonds as breadcrumbs. The study proposes a model where 'superdeep' diamonds crystallize from carbon-rich magmas, which may be critical for their growth.
A team led by Michigan State University is developing diamond devices to monitor brain biochemistry for early warning signs of Parkinson's disease. The devices aim to detect low levels of dopamine, a chemical neurons use to communicate, and could potentially treat the disease earlier.
A team of researchers from Arizona State University and the University of Chicago found that carbon-rich exoplanets could convert to diamond and silicate under high heat and pressure. However, these planets are unlikely to be habitable due to their geological inactivity.
Researchers used AI and quantum mechanics to study dense metallic hydrogen, finding a smooth and gradual transformation from molecular to atomic phases. The discovery resolves long-standing debates on the nature of dense hydrogen and has implications for understanding giant gas planets.
Researchers successfully synthesized a pristine diamane film using high-pressure compression, demonstrating its semiconducting properties and potential applications in electronic devices. The film has an energy gap of 2.8 eV, which is higher than that of gapless graphene.
A team of scientists, led by RMIT University, has developed a new class of quantum sensors using high-performance diamond particles embedded in conventional glass fibers. This breakthrough enables the creation of cheap quantum sensor networks for applications such as underwater monitoring and mining.
Researchers at MIT and Sandia National Laboratories have developed a hybrid approach to fabricate large-scale quantum chips using diamond-based qubits and quantum photonics. The new method enables the creation of complex quantum devices with reliable circuits for transmitting and manipulating quantum information.
A new quantum sensing technique developed by researchers at the University of Maryland uses diamonds to visualize electrical currents in graphene. The technique provides detailed images of current flow, shedding light on the intricate behavior of electrons in this material.
Researchers have found that curium's outer electrons can be altered by shortening the distance between it and surrounding lighter atoms under high pressure. This discovery has potential applications in controlling chemical separation used in nuclear recycling and designing resilient materials for long-term storage of radioactive elements.
Researchers at MIT have developed a hybrid process to manufacture and integrate 'artificial atoms' with photonic circuitry, producing the largest quantum chip of its type. The process enables scalable production of millions of quantum processors needed for quantum computers.
Researchers found remnants of bridgmanite in large type IIb diamonds, suggesting they formed at depths of over 660 km. This confirms predictions that both the Hope and Cullinan diamonds are super-deep, originating from more than three times deeper in the Earth's mantle
Researchers have developed a precise method for evaluating the behavior of mixtures under high pressure using X-ray scattering. The study reveals that hot hydrocarbon mixtures in ice giants can produce diamond rain, which generates an additional energy source.
A new species of diamond frog, Rhombophryne ellae, has been discovered in Montagne d'Ambre National Park, northern Madagascar. The species features distinctive orange flash-markings on its legs and large black spots on its hip. Its discovery highlights the gaps in knowledge of amphibians in tropical regions.
Researchers from OIST discovered that curvature at material edges affects wrinkling, with larger windows reducing wrinkles and strain. A theoretical model was developed to explain findings, which could aid in designing devices with functional wrinkles or reduced wrinkling.
A recent study published in Nature shows that CO2 emissions from the African continent's rift system are destabilizing diamond deposits, which could have significant implications for the environment.
Researchers at Skoltech and MIPT predicted and experimentally confirmed the existence of exotic hexagonal NaCl thin films on a diamond surface. The films may be useful as gate dielectrics for field-effect transistors in electric vehicles and telecommunication equipment.
Researchers successfully pressured tiny gold particles to assess their behavior under current flow, finding that gold behaves like a solid even at nanoscale. This discovery allows chip designers to continue using gold for critical wires in next-generation data processing devices.
Researchers developed a room-temperature bonding technique that integrates wide bandgap materials like gallium nitride with thermally-conducting materials like diamond. The interface layer is just four nanometers thick, allowing for two times more efficient heat dissipation.
The IKBFU scientists have developed a new method for producing diamond x-ray micro lenses, which can withstand high temperatures and radiation loads. The lenses are made using an electron-ion microscope and have exceeded expectations, enabling the study of nanostructures and protein crystals with greater detail.
Researchers at Stanford University have discovered a method for synthesizing pure diamonds from hydrogen and carbon molecules found in crude oil and natural gas. The process uses high pressure and surprisingly little heat, producing tiny specks of diamond in the lab.
Researchers successfully measured the full quantum geometric tensor in a solid-state spin system using coupled qubits in diamond. The technique enables precise measurement of the tensor's matrix elements, including Berry curvature and Riemannian metric.
A team of Australian scientists has discovered that diamond can be bent and deformed at the nanoscale, creating possibilities for the design and engineering of new nanoscale devices. The discovery opens up a range of possibilities for applications in sensing, defence and energy storage.
A study published in Physical Review X reveals that schools of fish with specific formations can receive significant energy savings and improved speeds through hydrodynamically influenced collective movement. Diamond lattice formations offer the greatest hydrodynamic advantage, while geometry plays a crucial role in performance.
Scientists have created a new class of 'superdiamond' carbon-based materials that can trap and tap into different properties, including metallicity and superconductivity. The material's properties can be tuned by changing the types of guest atoms within its cages.
Scientists developed nanoscale sensors to image and measure stresses and strains on materials under high pressures. The technology allows for a comprehensive measurement of six different stresses, enabling the discovery of new phases of matter with technological applications.
Samara Polytech scientists develop new high-temperature lubricants with esters from adamantane derivatives for improved thermal stability. This breakthrough increases flight safety in aviation and space facilities.
Scientists at Berkeley Lab developed a tool to harness atomic flaws in diamonds to create ultrasensitive sensors for measuring electric and magnetic fields. They successfully measured phase transitions and pressure-induced phase changes, opening up new avenues for materials research.
Researchers have successfully converted large-area bilayer graphene into the thinnest possible diamond-like material, F-diamane, under moderate pressure and temperature conditions. This flexible and strong material has potential for industrial applications in nano-optics and nanoelectronics.
Scientists discovered significant amounts of water trapped inside diamonds, which formed hundreds of kilometers deep in the planet. The findings suggest that this subterranean water may have originated from surface oceans and played a crucial role in the Earth's natural carbon balance and life emergence.
Researchers create and observe a single phonon in diamond at room temperature, bringing quantum behavior closer to everyday life. This breakthrough technique can now be used to probe other materials for quantum vibrations, potentially leading to advancements in solar cells and quantum computing.