Articles tagged with Diamond
Researchers at the University of Birmingham have devised a way to fabricate a complex structure, previously found only in nature, to control light in the visible range. This new approach uses self-assembled colloidal particles to create chiral photonic crystals with tailored optical properties.
Researchers at Tokyo Institute of Technology have successfully created Sn-V centers with identical photon frequency and linewidth, marking a new phase in their use as quantum nodes. The breakthrough enables the formation of stable Sn-V centers suitable for creating remote entangled quantum states.
Researchers have discovered a new form of carbon, LOPC, which consists of 'broken C60 cages' connected by long-range periodicity. The formation of LOPC occurs under specific temperature and carbon/Li3N ratio conditions, and its characterization reveals unique electrical conductivity properties.
Researchers used density functional theory to investigate the mechanical properties of superionic ice XVIII, which is thought to make up a large part of Neptune and Uranus. The study found that dislocations in the crystal lattice produce shear, leading to macroscopic deformations and potentially influencing the planets' magnetic fields.
Researchers at Princeton University have developed a new technique to measure the spatial structure and time-varying nature of magnetic noise. This breakthrough opens up new possibilities for understanding quantum spin liquids, materials with bizarre quantum behaviors that were previously difficult to analyze experimentally.
Researchers at the University of Illinois have solved a long-standing puzzle about cubic silicon carbide's thermal conductivity, which is higher than previously thought. The team measured an isotropic high thermal conductivity of over 500 W m–1 K–1, ranking it second only to diamond.
Researchers have discovered that nanodiamonds can emit solvated electrons in water when exposed to visible light, a crucial step towards using them as photocatalysts. This discovery could lead to the development of inexpensive and metal-free processes for converting CO2 into valuable hydrocarbons or converting N2 into ammonia.
The DiaQNOS project aims to develop quantum sensors for improved brain tumor surgery. Magnetic field sensors will refine neuronavigation, enabling more precise incision paths. Researchers from Mainz University and partners will create a device suitable for use in surgery.
Scientists have recorded photocatalysis charge separation processes experimentally on Cu2O particles, revealing rapid electron transfer and slower hole trapping, enabling better understanding of photocatalytic water splitting limitations. The technique allows for spatiotemporal imaging of charge transfer in photocatalyst particles.
Researchers developed a novel method to create deep nanochannels in hard and brittle materials like silica, diamond, and sapphire. By employing femtosecond laser direct writing technology, they achieved sub-100-nm feature sizes and ultrahigh aspect ratios.
A team of researchers led by Goethe University Frankfurt analyzed a diamond from Botswana, revealing significant amounts of water stored in the transition zone. The discovery has far-reaching consequences for the dynamic situation inside the Earth, potentially altering global material circulation.
Researchers discovered lonsdaleite in ancient dwarf planet meteorites, confirming its existence and potential industrial applications. The unusual structure of lonsdaleite could help inform new manufacturing techniques for ultra-hard materials.
Researchers at Tokyo Institute of Technology developed diamond quantum sensors to accurately measure EV battery charge. The sensors can detect small changes in current with 1% accuracy, extending driving range by up to 10%. This breakthrough reduces CO2 emissions and supports carbon neutrality.
Researchers found that oxygen makes diamond formation more likely, allowing for a wider range of conditions and planets. This discovery could lead to new methods of fabricating nanodiamonds with various applications.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have successfully created nanodiamonds out of PET plastic using powerful laser flashes. This breakthrough method opens up new possibilities for producing these minuscule diamonds, which are needed for highly-sensitive quantum sensors and medical contrast agents.
Researchers found that under the extreme conditions of the core-mantle boundary, carbon from the core reacts with iron alloy to form diamond. This process may have occurred for billions of years, supplying enough carbon to explain high amounts in the mantle.
A team of scientists has developed a novel setup for magnetocardiography using a diamond quantum sensor to measure heart currents at millimeter resolution. The sensor is based on nitrogen vacancies sensitive to weak magnetic fields produced by heart currents and can operate at room temperature.
Researchers investigate protogenetic clinopyroxene inclusions for diamond dating and find implications for understanding Earth's mantle processes. They also study Andean deformation and its relation to flat slab subduction and tectonic inheritance.
Studies of deep diamonds provide evidence of fluids carried by subducted slabs, suggesting that fluids can no longer be ignored in the story of deep earthquake generation. The diamonds' distinctive chemistry and inclusions indicate a connection to organic material and serpentinized mantle peridotite.
Researchers have created ultra-uniform nanodiamonds using a new chemical process that mimics the conditions found in natural diamond formation. The tiny crystals are crucial for drug delivery, sensors, and quantum computer processors. With this breakthrough, scientists can now control single atoms within larger structures.
Researchers at UNLV's Nevada Extreme Conditions Lab have discovered a new form of ice with unique properties. The team found that the transition to Ice-X occurs at much lower pressures than previously thought.
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 NIMS have created a diamond field-effect transistor (FET) with high hole mobility, reducing conduction loss and increasing operational speed. The FET's normally-off behavior also makes it safer for electronic devices.
Scientists have simulated the growth of ultra-thin polycrystalline diamond films with promising results. The two-dimensional simulations revealed interesting geometric structures and shed light on how to create robust materials. The research has implications for biomedical science, quantum devices, and other applications.
Researchers recreated conditions expected in Mars' core billions of years ago and found that molten metal gave rise to a brief magnetic field. This led to the evaporation of water vapor and eventual loss of Martian oceans about 4 billion years ago.
University of Rochester researchers adapt excited state lifetime thermometry to extract temperatures of nanoscale materials from light emitted by nitrogen vacancy centers in single nanodiamonds. The technique allows for precise measurement of temperature changes on fast time scales and is safe for imaging sensitive nanoscale materials ...
A team of researchers from Japan Advanced Institute of Science and Technology successfully detects thermally excited magnons in a yttrium iron garnet sample using a diamond-based quantum sensor. This breakthrough enables the detection of thermal magnon currents, opening doors to heat-controlled quantum devices.
Researchers develop small-molecule serial femtosecond crystallography, enabling precise analysis of complex materials. The technique reveals accurate atomic structures of previously unsolvable compounds.
Researchers at Japan Advanced Institute of Science and Technology have developed a novel method to fabricate diamond probes with controlled shape and higher sensitivity. These probes enabled the imaging of periodic magnetic domain structures in ferromagnets, showing promise for quantum applications.
A novel quantum-based sensor has been developed to detect the SARS-CoV-2 virus with high accuracy and speed. The sensor uses nitrogen vacancy centers in diamond to detect minute perturbations in the presence of viral RNA, enabling fast and reliable detection.
Researchers successfully reproduced the formation of methane from diamonds under high-pressure conditions, shedding light on the deep Earth's carbon cycle. This finding suggests that hydrocarbons like methane can be created without biological activities, which has significant implications for our understanding of the planet's climate.
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.
Researchers from Peking University developed a new technique using 4D-EELS to measure phonon modes at heterointerfaces, directly observing localized phonon modes for the first time. This breakthrough enables better understanding and control of solid interfaces' properties.
Researchers from UNLV have discovered a new mineral, davemaoite, which originated between 410-560 miles deep within the Earth's lower mantle. The calcium silicate compound was trapped in a diamond and preserved due to its incredible strength, making it possible for scientists to study its structure.
The study compared traditional mining and innovative synthesis methods for producing a single carat diamond, revealing that energy consumption varies widely between the two. While some synthetic methods are more efficient than mining, others consume significantly more energy.
Researchers at the University of Illinois created a novel device using microscopic fluorescent diamonds to calibrate sensitive microscopy systems. The nanodiamonds' stability and longevity make them ideal as a 'first-aid kit' for microscopes, allowing for easy reuse and quality control.
Researchers from Tokyo Institute of Technology demonstrate that lead-vacancy centers in diamond exhibit dihedral symmetry and large ground state splitting, essential properties for quantum networks. The high-pressure high-temperature treatment recovers damaged crystal lattice, leading to long spin coherence time at higher temperatures.
Researchers have successfully bonded gallium nitride and diamond without intermediate layers using surface-activated bonding. The resulting GaN-on-diamond material demonstrates stability even at extreme temperatures of up to 1,000℃, enabling the development of highly conductive semiconductors for high-power devices.
Researchers at Goethe University Frankfurt and Bonn have synthesized molecular nano spheres made of silicon atoms, known as silafulleranes, which can encapsulate chloride ions. The discovery of these new compounds may lead to improved applications in electronics, solar cells, and batteries.
Scientists at Tokyo University of Science develop a new methodology to investigate the elusive electric double layer (EDL) effect in all-solid-state batteries. The study reveals that the EDL effect is dominated by the electrolyte's composition and can be suppressed through charge compensation, leading to improved performance.
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.
Scientists from the University of Tsukuba used radio-frequency imaging to detect nitrogen-vacancy defects in diamond with improved resolution. The technique, called spin-locking, enhances accuracy and sensitivity by shielding electron spin from random noise.
Researchers found ancient diamonds with gases similar to those in the modern mantle, indicating little change in atmospheric volatiles over the last 2.7 billion years. This suggests that essential volatile elements like carbon and nitrogen were present on Earth soon after its formation.
Researchers develop method to control flash Joule heating process to produce valuable allotropes, including fluorinated nanodiamonds and graphene. The process uses organic fluorine compounds and fluoride precursors to create the desired structures.
A team of scientists has found that fluids play a key role in deep-focus earthquakes, which occur between 300 and 700 kilometers below the planet's surface. The research suggests that water carried down from oceanic plates was instrumental in creating these mysterious events.
A new method for growing bulk single-crystal nitrides has been developed by Lehigh University materials scientist Siddha Pimputkar, which could lead to more-efficient and less-costly electronic devices. The approach involves using lithium nitride as a precursor and a specialized pressure cooker to overcome the challenges of growing lar...
Researchers have developed microdiamond tracers that can provide information via both MRI and optical fluorescence simultaneously, allowing high-quality images up to a centimeter below the surface of tissue. This technique enables faster imaging and overcomes the limitation of light microscopy in probing deeper tissues.
Two research breakthroughs accelerate the development of synthetic diamond-based quantum technology by addressing cost and fabrication difficulties. A new hard masking method enables precise engineering of optical defects in diamond devices, while a novel growth process uses lower-cost polycrystalline substrate.
Researchers have discovered a way to date fluid-bearing diamonds, revealing three distinct periods of diamond formation spanning over 2 billion years. The study provides insights into the evolution of the deep earth and continents, with potential implications for our understanding of planetary history.
Researchers aim to create diamond windows that can withstand high levels of radiation, a crucial step towards building safer fusion reactors. The University of Tartu's three-year project involves partnerships with German and Latvian institutions to develop materials and technologies necessary for the DEMO reactor.
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.
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 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.