Articles tagged with Diamond
Researchers at Helmholtz-Zentrum Dresden-Rossendorf successfully produce high-purity, ultra-small nanodiamonds using laser compression, offering a scalable and sustainable alternative to conventional methods. The diamonds can be used in various applications, including medicine, energy technology, and catalysis.
Researchers have developed a diamond material that actively regulates fractures by dissipating energy at the crack tip, leading to enhanced hardness and crack resistance. The material, NPD8, combines high hardness with increased indentation fracture toughness, making it suitable for high-speed cutting and drilling applications.
The new method uses a chemical additive to create a sacrificial molecular cushion on the crystal surface, allowing for smoother cutting and reducing defects. This technique slashes subsurface crystal defects to a depth of only 70 nanometers, promising to revolutionize semiconductor manufacturing.
Researchers at Tohoku University developed a novel approach to track bending stress in microscopic devices using nitrogen vacancy centers in diamond crystals. The study shows that the sensing region can be integrated into the mechanical device itself, enabling the detection of both tensile and compressive bending stress.
Researchers at Rice University developed a new way to manufacture diamond composites by mixing diamond grains with cubic boron nitride and cobalt. The composite exhibited an extremely strong structure that could help design tougher materials for extreme conditions, and it transformed into graphite under high-speed collisions.
Scientists at the University of Electro-Communications create a method to map dielectric response at the atomic level, revealing diamond's anomalous enhancement. This discovery could lead to the development of efficient electron sources and smaller electronic components.
A Brazilian research team used synchrotron light techniques to analyze a super-deep diamond and found that goethite can withstand extreme pressures and temperatures all the way to the planet's interior. The study suggests that goethite may transport and release water into the lower mantle, reinforcing the hypothesis.
Researchers at Rice University developed a custom Python-based software tool to rapidly analyze data from high-resolution X-ray diffraction, identifying dislocations and irregularities in the atomic lattice. The approach can accelerate the development of more reliable electronic and quantum devices.
A team of researchers has developed a lab-grown diamond device that accurately measures radiation doses, offering improved consistency and sensitivity compared to conventional detectors. The device's compact size enables real-time measurements during treatments and environmental monitoring.
The new facility enables scientists to observe and measure detonation forces in unprecedented detail, shedding light on industrial safety risks and potential breakthroughs. Researchers aim to develop safer designs and protocols by examining detonation disasters like the Buncefield Fire.
Researchers at Rice University have developed a new method to grow patterned diamond surfaces that can decrease operating temperatures in electronics. This approach uses microwave plasma chemical vapor deposition to create ordered layers of diamond crystals on substrates, allowing for controlled seed placement and scalable growth.
Graphene and diamond hybrids show promising performance in electronic devices, sensors, and machining tests. However, major challenges remain, including producing large-area hybrids with consistent quality and understanding fundamental properties.
Researchers at Hong Kong Polytechnic University create a new machining method that combines laser and magnetic fields to machine advanced materials like high-entropy alloys. The dual-field approach produces smoother surfaces, reduced damage, and improved material removal rates.
Researchers discovered 'hot spots' around atomic defects in diamonds that briefly distort the surrounding crystal, affecting quantum-relevant defects. The findings indicate optical techniques used to control defects may unintentionally generate small pockets of heat, potentially affecting diamond-based quantum devices.
Researchers at Rice University have developed lab-grown diamond coatings that can naturally resist scale formation without constant intervention. The nitrogen-terminated diamond surface accumulated significantly less scale than other surfaces, making it a promising anti-scaling material for water desalination and energy systems.
Scientists have successfully measured ultrafast electric fields using a diamond nonlinear probe, achieving femtosecond temporal and nanometer spatial resolution. This breakthrough enables the detection of local electric field dynamics near surfaces with unprecedented precision.
A team at University of Tokyo successfully created nanodiamonds using electron radiation on adamantane molecules. This method offers new techniques for imaging and analysis, and could lead to breakthroughs in fields like quantum computing and sensors.
Researchers at the University of Warwick have developed a handheld diamond magnetometer for cancer surgery, which uses magnetic tracer fluid to detect tumours. The device is ultra-sensitive and compact, offering a non-toxic alternative to traditional methods, such as radioactive tracers or blue dye.
Researchers have developed a method to produce mirror-like graphite films with millimeter-sized grains, exceeding previous synthetic graphite's performance. The films demonstrate exceptional mechanical properties, thermal conductivity, and electrical conductivity, opening up new possibilities for high-tech applications.
Researchers achieved a 2-fold enhancement in NV center coherence time by graphene-diamond hybridization, clarifying the physical mechanism and providing a novel approach to improve nanoscale quantum sensors. This technique leverages mature graphene transfer processes to reduce noise from diamond surfaces.
Researchers at Rice University have developed a new method to fabricate ultrapure diamond films for quantum and electronic applications. By growing an extra layer of diamond on top of the substrate after ion implantation, they can bypass high-temperature annealing and generate higher-purity films.
Physicists at Washington University in St. Louis have created a novel phase of matter called a time quasicrystal, which vibrates at precise frequencies over time. The researchers built the quasicrystals inside a diamond chunk using powerful nitrogen beams and microwave pulses.
Researchers have developed a new technique for quantum sensing using nanodiamonds in microdroplets, which can detect trace amounts of certain ions and molecules. This method uses flowing droplets and carefully modulated microwaves to ignore unwanted background noise and add precision.
Researchers developed heteroepitaxial diamond quantum sensors with high sensitivity and accuracy for monitoring electric vehicle battery systems. The breakthrough could pave the way for widespread adoption in industries related to sustainable development.
A new study by researchers from the University of Tokyo reveals that helium can bond with iron under extreme conditions, contradicting previous findings. The discovery suggests there could be significant amounts of helium in the Earth's core, potentially rewriting our understanding of the planet's origins.
A new photocatalytic chemical mechanical polishing (PCMP) slurry has been developed for Single Crystal Diamond (SCD) polishing, resulting in exceptionally smooth surfaces with minimal damage. The Material Removal Rate (MRR) peaks at 1168 nm·h−1, emphasizing the efficiency and effectiveness of this advanced polishing technique.
Researchers at Tel Aviv University have developed a method to transform graphite into novel materials with controlled atomic layers, enabling the creation of tiny electronic memory units. This process, known as 'Slidetronics,' allows for precise manipulation of material properties, opening doors to innovative applications in electronic...
Boron-doped diamonds exhibit plasmons, allowing electric fields to be controlled on a nanometer scale, for advanced biosensors and nanoscale optical devices. This discovery could pave the way for new types of biomedical and quantum optical devices.
PPPL researchers will lead two collaborative projects involving national labs, academic, and industry partners to advance microelectronics and sensors. The projects aim to create a science-based plasma-processing toolbox for next-generation semiconductor device manufacturing processes.
Researchers from Okayama University create nanodiamonds with nitrogen-vacancy centers, exhibiting strong fluorescence and stable spin states for biological applications. The developed nanodiamonds have improved spin quality compared to bulk diamonds, making them suitable for bioimaging and quantum sensing.
Scientists at DOE's Princeton Plasma Physics Laboratory perfect processes for growing diamond at lower temperatures without sacrificing quality. The breakthrough could enable the implementation of diamond in silicon-based manufacturing, opening a door for advanced electronics and sensors.
The SPINNING project successfully demonstrated the entanglement of two registers of six qubits each over 20m distance with high fidelity. The spin-photon-based quantum computer achieved lower error rates than superconducting Josephson junctions, outperforming prominent models like Eagle and Heron.
A novel diamond bonding technique allows for the direct integration of synthetic diamonds with materials used in quantum and conventional electronics, overcoming a major hurdle in their use. The technique enables the creation of thin diamond membranes suitable for advanced quantum applications.
The researchers combined an NV diamond with a laser diode in an optical resonator, successfully demonstrating the sensor system with two active media. This breakthrough enables high-contrast sensors to measure biomagnetic signals from the brain or heart with improved sensitivity and dynamic range.
Scientists have created extremely thin sheets of nitrogen-vacancy (NV) centers in diamond crystals, which exhibit exceptional sensitivity to environmental variations. The findings reveal the emergence of Fröhlich polarons, previously thought not to exist in diamonds, opening up new prospects for quantum sensing.
Researchers have demonstrated a novel method to increase the density and depth of nitrogen-vacancy centers in type-Ib diamonds through controlled temperature and orientation. This study advances our understanding of diamond materials and opens up new possibilities for cutting-edge scientific and technological applications.
Physicists at Purdue University have achieved a groundbreaking milestone in levitated optomechanics by observing the Berry phase of electron spins in nano-sized diamonds. By levitating and spinning these tiny diamonds at incredibly high speeds, they were able to study the effects of fast rotation on spin qubits.
Researchers developed a new 2D quantum sensing chip using hexagonal boron nitride that can simultaneously detect temperature anomalies and magnetic fields in any direction. The chip is significantly thinner than current quantum technology for magnetometry, enabling cheaper and more versatile sensors.
Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.
Researchers at Harvard University have successfully demonstrated the first metro-area quantum computer network in Boston, using existing telecommunication fiber to send hacker-proof information via photons. The breakthrough overcomes signal loss issues, enabling the creation of a secure quantum internet.
Researchers create diamond film at 1 atm pressure and 1025°C using a novel liquid metal alloy, breaking the high-pressure requirement. The synthesized diamond has a high purity and unique silicon-vacancy color centers, opening new avenues for applications in magnetic sensing and quantum computing.
A team of researchers created a single negatively charged lead-vacancy center in diamond, which emits photons with specific frequencies not influenced by the crystal's vibrational energy. This characteristic makes the PbV center a promising building block for large-scale quantum networks.
Scientists have created a novel instrument that enables the precise measurement of superconductors under extreme pressure, overcoming existing limitations. The new tool uses quantum sensors integrated into a standard pressure-inducing device, allowing for direct imaging of the material's behavior.
Researchers at Kyoto University have determined the magnitude of spin-orbit interaction in acceptor-bound excitons in a semiconductor. The study revealed two triplets separated by a spin-orbit splitting of 14.3 meV, supporting the hypothesis that two positively charged holes are more strongly bound than an electron-and-hole pair.
A new technique enables researchers to identify and control a greater number of atomic-scale defects in diamonds, which can be used to build larger systems of qubits for improved quantum sensing. This approach uses a specific protocol of microwave pulses to locate and extend control to additional defects.
Energy beam-based direct and assisted polishing technologies for diamonds improve surface quality and material removal rates, overcoming limitations of traditional methods. Researchers analyzed four latest polishing techniques, including laser polishing, ion beam polishing, plasma-assisted polishing, and laser-assisted polishing.
Researchers at Osaka Metropolitan University fabricated GaN transistors using diamond substrates, achieving more than twice the heat dissipation of SiC-based transistors. This novel technology has the potential to revolutionize power and radio frequency electronics with improved thermal management capabilities.
Researchers combined diamond and lithium niobate onto a single chip to achieve high efficiency in coupling the two materials. This pairing enables stable and reliable qubits, critical for quantum communication networks and applications.
Embedding nanodiamonds in polymer can advance quantum computing and biological studies. The technique, developed at the University of São Paulo, enables integration of quantum emitters into photonic devices and cell marking applications.
Researchers at the University of Illinois have developed a diamond semiconductor device with the highest breakdown voltage and lowest leakage current. The device operates at high voltages and currents without losing electrical performance, making it suitable for applications such as solar panels and wind turbines.
Scientists have discovered that superdeep diamonds can provide a window into the growth and formation process of ancient supercontinents like Gondwana. By analyzing tiny inclusions within these diamonds, researchers were able to determine the age of the mantle rocks that helped buoy and grow the supercontinent from below.
A University of Alberta study of superdeep diamonds provides previously unknown information about the formation and transport of diamonds within Gondwana, a ancient supercontinent. The research reveals that diamonds were transported to the base of Gondwana by host rocks carrying subducted mantle material.
A team of experts analyzed ancient diamonds formed between 650 and 450 million years ago, providing new processes for how continents evolved and moved. The research sheds light on the supercontinent cycle and offers a direct window into Earth's deep workings.
A groundbreaking study reveals that linear defects in diamond can spread at speeds exceeding the speed of sound, which could impact our understanding of material strength, failure, and manufacturing. This discovery may lead to new insights into earthquake ruptures, structural failures, and precision manufacturing.
Researchers used a unique X-ray technique to capture soundwaves' propagation in a diamond crystal, revealing ultrafast structural phenomena that were previously beyond scientific reach. The breakthrough enables real-time imaging of solid materials with unprecedented resolution and speed.
The MIT Press is expanding its shift+OPEN initiative with a $275,000 NSF grant to flip two high-impact subscription-based journals to diamond OA. The program aims to accelerate STEM and HSS research by providing barrier-free access to scholarly works.
Researchers have found that diamond materials can release electrons in water and trigger chemical reactions when excited by light. The team used X-ray spectroscopy to precisely track the processes taking place on the surface of diamond materials, revealing that they are well-suited for use in aqueous solutions.
Researchers have identified three key ingredients needed to bring valuable pink diamonds to the surface: deep carbon, continental collision, and stretching of landmasses. This discovery could lead to finding new pink diamond deposits globally.
Researchers at SLAC National Accelerator Laboratory have developed a key process for next-gen X-ray lasers, demonstrating the use of synthetic diamond crystal mirrors to steer X-ray pulses around a rectangular racetrack. The achievement marks an important step towards creating brighter and more stable X-ray laser pulses.
Researchers created a nanocomposite of hexagonal and cubic boron nitride, which exhibits unexpected thermal and optical properties. The composite's low thermal conductivity makes it suitable for heat-insulating electronic devices, while its second-harmonic generation property is larger than expected after heating.