Articles tagged with Diamond
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 UTA and Wadia Institute of Himalayan Geology discovered the generation of H2, O2, H2O, and CO2 in the Earth's mantle, shedding new light on planetary evolution. The study also found that deep mantle upwelling can oxidize fluids to produce water and carbon dioxide.
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.
Researchers at MIPT and the University of Siegen have developed high-speed single-photon sources using diamond diodes, enabling efficient quantum communication and computing devices. The new design mechanism allows for precise photon emission times, crucial for applications such as quantum cryptography and quantum computing.
Physicists have imaged spiral magnetic ordering in multiferroic material bismuth ferrite using quantum sensors. The discovery paves the way for advances in research into these promising materials for data storage devices.
Researchers at University of Basel successfully used mirrors to boost NV centers' photon yield by 50% and emission rate by 100%. This breakthrough paves the way for future applications in quantum information technology.
Scientists at Helmholtz-Zentrum Dresden-Rossendorf simulated the conditions inside Neptune and found diamonds forming in real time using an ultra-strong X-ray laser. The study provides insights into the planet's chemical makeup and has potential applications for electronic instruments, medical procedures, and industrial production.
Researchers created high-pressure conditions to simulate the interior of icy giant planets and observe the formation of solid diamonds. The team used X-ray pulses to measure the chemical reaction, providing unambiguous evidence of diamond rain in real-time for the first time.
Scientists have developed a new technique to produce high-density clusters of aligned quantum sensors in diamond, just nanometers from the surface. This enables submolecular sensitivity for microscopy, allowing researchers to detect changes in protein concentration within single cells.
Harvard researchers develop a technique to control and measure spin voltage using atomic-sized defects in diamonds, allowing for measurements in chip-scale devices. This breakthrough enables the study of spintronics and exotic physics.
Researchers from MIT, Harvard University, and Sandia National Laboratories report a new technique for creating targeted defects in diamond materials, which can function as qubits in quantum computing. The defects produced by the technique were found to be within 50 nanometers of their ideal locations.
Researchers in Japan developed a new diamond-based transistor fabrication process that promises to advance the development of more robust and energy-efficient electronics. The process uses manufactured diamonds with yttrium oxide insulator to overcome silicon limitations.
A research group from India used Raman scattering to study the vibrational properties of heavily boron-doped diamond, revealing a Fano resonance that is sensitive to impurity band evolution with boron doping. The study aims to increase the superconducting transition temperature in boron-doped diamond.
Researchers at Tohoku University successfully generated unpolarized single photons from diamond with intrinsic randomness. This breakthrough is expected to revolutionize quantum information technology, including quantum computing and cryptography.
Researchers at Harvard University created a time crystal, a periodic arrangement of atoms across time, using nitrogen-vacancy centers in diamond. The discovery offers insights into non-equilibrium quantum systems and may lead to new applications in precision measurement.
Scientists at TU Wien have successfully coupled nitrogen-vacancy defects in two diamonds using quantum physics, a crucial step towards developing new quantum technologies. The breakthrough enables the creation of highly sensitive sensors and switches for quantum computers.
Scientists simulated the structure of fullerite and single crystal diamond to show how fullerite can become ultrahard. The results suggest that part of the fullerite turns into diamond under pressure, while the other part remains compressed within the diamond, increasing its bulk modulus.
Scientists at Tohoku University simulated the formation of super-deep diamonds using high-pressure and high-temperature experiments. The study suggests that these rare diamonds can form through the reaction of Mg-carbonate and silica minerals at extreme depths, offering new insights into Earth's interior conditions.
Researchers at University of Pennsylvania have successfully grown colloidal crystals with a diamond structure, enabling special optical properties. The material, called a photonic bandgap material, could revolutionize photonics and enable the construction of 'transistors' for light.
Researchers at MIT developed a method to produce high-resolution images of individual biomolecules without requiring crystallization. The technique uses nitrogen vacancy centers in diamond crystals to detect tiny variations in magnetic fields, achieving resolutions up to 100 times higher than conventional methods.
Defective diamonds are transformed into highly perfect nanodiamonds using high-temperature conditions, enabling precision measurement of electromagnetic fields and other variables. This process improves the homogeneity of crystal lattices, paving the way for scalable methods in quantum sensing.
Researchers at Tokyo Institute of Technology have developed a technique to measure the electric field within a working semiconductor device, enabling studies of next-generation electronics. The approach exploits single electron spins and nitrogen-vacancy centers in diamond, promising spatial resolution of 10 nm for complex devices.
Researchers have successfully created the first time crystals, which repeat their structure in time due to periodic kicking. This breakthrough opens a new landscape of non-equilibrium matter with promise for quantum computing and memory storage.
Researchers successfully created atomic metallic hydrogen using diamond anvil cells at extreme pressures, offering potential applications in high-energy storage, superconductors, and rocket propulsion. The discovery could transform various industries, including energy production and space exploration.
Scientists from Lomonosov Moscow State University have developed a technology to produce small diamond crystals in needle- and thread-like shapes, which could be used in sensors, quantum optical devices, and other areas of science and technology. The technique involves heating polycrystalline diamond films to oxidize most of the materi...
Researchers use diamondoids to assemble atoms into the thinnest possible electrical wires, just three atoms wide. This technique has the potential to create new materials with finely tuned electronic properties and interesting physics.
Physicist Tyrone Daulton reviews Younger Dryas sediments for nanodiamonds and finds none, contradicting the impact hypothesis. He attributes this to misidentification of similar carbon structures, such as graphene and graphane.
Two new studies in the Journal of Quaternary Science refute the impact theory on abrupt climate change, citing flawed evidence and misidentifications. The research challenges two key lines of argument supporting the impact hypothesis, including nanodiamond concentrations and wildfire interpretations.
Researchers have created a tiny radio receiver using atomic-scale defects in pink diamonds, enabling it to operate in harsh environments and human bodies. The device uses nitrogen-vacancy centers, which can emit single photons or detect weak magnetic fields.
Research reveals that large gem diamonds, like Cullinan and Lesotho Promise, formed from pure carbon crystalized in a pool of liquid metal. The study provides insights into deep Earth processes and oxygen availability in the mantle.
Large gem diamonds contain metallic inclusions and traces of fluid methane and hydrogen, providing insights into the deep mantle. The composition of these inclusions resolves a major enigma in diamond formation.
Researchers find metallic iron slivers in exceptionally large stones, indicating a liquid metal origin. The discovery provides insight into the geological formation of massive diamonds, such as the Cullinan Diamond.
A team of scientists at Australian National University has successfully created a diamond that is predicted to be harder than regular diamonds. The new material, called nano-crystalline hexagonal diamond, was made using a high-pressure diamond anvil and has the potential to be used in mining sites to cut through ultra-solid materials.
Researchers analyzed diamonds from the Denver Museum of Nature & Science and University of British Columbia, gaining a rare look at the processes that led to Earth's crust formation. The study reveals an incredible 3-billion-year journey through tectonic collisions and volcanic eruptions.
Researchers at North Carolina State University have developed a new technique to create NV-doped nanodiamonds, which could serve as components in room-temperature quantum computing technologies. The new method offers unprecedented control and uniformity in the nanodiamond structures.
Researchers have discovered a new material called diamond nanothread (DNT) that boasts exceptional strength, flexibility, and conductivity. DNT has the potential to be used in various applications, including ultra-strong composites, flexible electronics, and even space elevators.
Researchers at Lehigh University found gallium nitride has a wear rate approaching that of diamonds, making it suitable for touch screens, space vehicles and RF MEMS. The material's tribological properties have been studied extensively but virtually no studies were done on its resistance to mechanical wear.
Physicists create a memory bit that traps and releases electrons with laser excitation, storing vast amounts of data in an atomic-sized defect. The resulting storage densities would be hundreds of thousands of times larger than existing Blu-ray technology.
Researchers at UAB have successfully created as yet unknown new materials by applying pressures greater than those found at the center of the Earth. By using tiny nanocrystalline-diamond anvils, they were able to reach pressures of up to 264 gigapascals.
Researchers from Sandia and Harvard Universities have successfully embedded silicon atoms in a diamond matrix to create the first quantum bridge. This breakthrough enables the connection of multiple small quantum computers, potentially revolutionizing quantum sensing and information distribution.
Researchers at Argonne National Laboratory have developed a method to grow high-quality graphene on ultrananocrystalline diamond, reducing impurities and costs. The new process uses nickel to facilitate the growth of defect-free graphene, enabling its exploitation for advanced electronics and applications.
Researchers found high calcium-to-aluminum ratios in olivine and diamond inclusions, suggesting a connection between the chemistry of tiny carbon-rich fluids trapped within diamonds and those that form HIMU islands. The study suggests that material from diamond-forming regions journeys to earth's core and back up to form such islands.
A team at The City University of New York led by Dr. Carlos Meriles has successfully demonstrated charge transport between Nitrogen-Vacancy color centers in diamond, paving the way for room-temperature quantum information processing and three-dimensional optical data storage.
Researchers at ETH Zurich have investigated how electrons respond to extremely fast electric fields, reaching speeds of up to petahertz. They observed that the absorption of diamond varied characteristically following the rhythm of the oscillating electric field, confirming the dynamical Franz-Keldysh effect.
Researchers have created highly efficient electrically-driven single-photon sources in diamond, promising breakthroughs in quantum computers and secure communication lines. The discovery enables operation at room temperature, increasing energy efficiency by over a thousand times and laying the foundations for novel quantum devices.
Researchers at Argonne National Laboratory have devised a method to achieve static pressures vastly higher than any previously reached, using transparent nano-crystalline diamonds. This breakthrough enables the study of materials under extreme conditions, potentially leading to the discovery of new materials with unique properties.
Researchers create compact high sensitivity sensors using diamond microstructures, achieving record high microwave frequencies and quality factor. They proposed a mathematical model to select useful acoustic signals and decrease spurious peaks, paving the way for applications in various fields.
Researchers used nano-scale technique to discover iron oxide mineral formation in diamonds, shedding light on the origin of inclusions. The study solves a decades-old puzzle, revealing that oxidation of iron sulphides directly causes diamond formation.
Researchers at UMD developed a method to build diamond-based hybrid nanoparticles in large quantities, enabling precise control of their properties. The technique uses nanoscale diamonds with nitrogen vacancies to create customizable semiconductors, magnets, and qubits.
Astronomers may discover these 'diamond worlds' around rare carbon-enhanced metal-poor stars, which formed in the early universe. Carbon-based life is thought to be universal, supporting the possibility of life on these unusual planets.
A scientist at Lomonosov Moscow State University studied the influence of carbon nanotube 'stuffing' on their electronic properties. The researcher identified four main reasons why this method is promising for tailoring electronic properties.
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 at North Carolina State University have developed a new technique to deposit diamond on the surface of cubic boron nitride, creating a single crystalline structure. This integration enables the creation of high-power devices and addresses material limitations such as oxidation and compatibility issues with steel tools.
A novel system uses thin slivers of diamond to measure electron beam polarization with unprecedented accuracy. The diamond-based detector provides direct and accurate measurements, overcoming previous uncertainties caused by laser beam distortions.
Scientists have developed a new method to image magnetic fields on the nanometer scale at temperatures close to absolute zero. They used quantum sensors in diamond-based microscopes to achieve unrivalled precision in measuring magnetic fields in superconductors.
Researchers have stabilised ultra-long carbyne chains with over 6,400 carbon atoms, surpassing previous records. The new method uses double-walled carbon nanotubes to create the stable chains, which could lead to new nano-electronic applications.
Scientists successfully shifted the frequency of a single photon, opening up new possibilities for wavelength division multiplexing in optical quantum communication. The breakthrough uses a room-temperature diamond quantum memory to manipulate light at extremely short pulse lengths.
Tomsk Polytechnic University scientists create composite coating based on diamond and cubic boron nitride to improve durability and protect against high temperatures. The coating integrates the properties of diamond and nitride coatings, making it applicable to most metals.
Researchers have resolved the dynamics of phase change in hexagonal diamond formation during meteor impacts. The team conducted in situ X-ray diffraction measurements of dynamic diamond formation on nanosecond timescales.
Researchers at Brookhaven National Laboratory have devised a method to trap and arrange nanoparticles in a way that mimics the atomic structure of diamond using DNA scaffolds. The technique, developed by Oleg Gang, employs fabricated DNA as a building material to organize nanoparticles into 3D spatial arrangements.