Articles tagged with Quasicrystals
Researchers develop a method to transform spin-glass-like quasicrystals into ferromagnetic materials with tunable magnetic properties and strong magnetocaloric response. The technique enables expanded electron-to-atom ratios, unlocking new possibilities for designing high-performance magnetic refrigeration materials.
Researchers at TU Wien have discovered a material called murunskite that combines properties of cuprates and pnictides in unexpected ways. Despite the random arrangement of its atoms, murunskite exhibits surprisingly ordered magnetic properties at high temperatures.
Scientists at NIST discovered a novel aluminum alloy with enhanced strength through quasicrystals, revolutionizing 3D printing. The unique crystal structure breaks the regular pattern of perfect crystals, causing defects that make the metal stronger.
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 at City University of Hong Kong have observed a new vortex electric field with the potential to enhance electronic, magnetic and optical devices. The discovery enables the creation of quasicrystals with versatile applications in memory stability, computing speed, spintronics and sensing devices.
Researchers at Aalto University have developed a method to create tiny vortices in light, which can carry information and potentially increase data transmission capacity by 8-16 times. The discovery uses quasicrystal design and manipulated metallic nanoparticles to achieve this feat.
Scientists develop locally periodic honeycomb structure with ordered but non-periodic arrangements, exhibiting properties distinct from usual periodic crystals. The study highlights the effectiveness of aperiodic approximants in inducing modulations within self-assembled soft-matter systems.
A team of researchers has uncovered the magnetic phase diagram of non-Heisenberg-type quasicrystals, revealing new insights into their unique properties. The findings open up new doors for understanding the intricate interplay between magnetic interactions in these materials.
A team of researchers has developed a novel methodology to engineer colloidal quasicrystals using DNA-modified building blocks, revealing new avenues for nanoscale design. The study demonstrates the programmable nature of DNA to design and assemble quasicrystals deliberately.
A team of researchers has discovered a liquid quasicrystal with a dodecagonal honeycomb structure, consisting of triangular, square, and trapezoidal cells. The discovery provides new insights into the formation of these special structures and offers promising applications in optics and electronics.
Researchers at Tokyo University of Science have discovered a novel gold-gallium-dysprosium quasicrystal that exhibits ferromagnetic properties, tunability and high phase purity. The discovery opens up new frontiers in magnetic materials science, with potential applications in spintronics and magnetic data storage.
Researchers at MLU discovered a structure made of rings with four, seven and ten atoms that order aperiodically in titanium oxide. High temperatures and barium create this network of rings, stabilizing them through electrostatic interactions.
Researchers at Tokyo University of Science have reported the first-ever observation of long-range ferromagnetic order in icosahedral quasicrystals. The discovery was made using conventional X-ray diffraction, magnetic susceptibility, and specific heat measurements.
A new type of manmade quasicrystal created by the first test blast of an atomic bomb has been identified by a UMass Lowell geologist. The substance holds promise for various applications such as bone repair, heat insulation and converting heat to electricity.
Researchers identified a unique icosahedral quasicrystal in a red trinitite sample from the Trinity test, the first nuclear bomb detonation. The discovery reveals that similar thermodynamic conditions may produce other quasicrystals.
Mathematicians and engineers at the University of Utah have developed a method to create quasiperiodic structures using ultrasound waves, which could lead to customizable materials. The researchers created a pattern similar to a Penrose tiling by arranging carbon nanoparticles in an octagonal setup.
Researchers discovered a unique step-terrace-like surface structure in quasicrystal-like materials, which depends on the biasing voltage applied to the sample. The study, led by Prof. Ryuji Tamura from Tokyo University of Science, offers exciting possibilities for material scientists to explore.
A team of scientists at Tokyo University of Science has observed antiferromagnetic transitions in a type of Tsai-type approximant, a structure similar to quasicrystals. This finding could lead to the creation of quasicrystals with unique properties.
Researchers at Brown University have created a new type of quasicrystalline superlattice that self-assembles from a single component, exhibiting five-fold symmetry. The discovery provides insight into how these materials can emerge and offers a new rule for forming quasicrystals.
Researchers at UT Dallas suggest a new type of matter that exhibits both zero viscosity and non-periodic structure. Theoretical framework proposes an experimental setup to produce the material, potentially creating a supersolid with unique properties.
A team of researchers from Nagoya University has discovered superconductivity in a quasicrystal alloy, which challenges conventional theories. The alloy's properties were found to be similar to those of weak-coupling superconductors, ruling out the role of critical eigenstates.
Researchers have successfully formed and imaged tiny quasicrystals using silica nanoparticles, revealing a non-periodic yet ordered structure. The team used transmission electron microscopy to capture the growth process, which was influenced by varying concentrations of chemical compounds and mechanical stirring.
Researchers discovered a chain reaction of energy redistribution in quasicrystals, resembling a lightning strike's forked branches. This unique behavior has implications for the development of low-energy computing devices.
Scientists at TUM develop a methodology to produce 2D quasicrystals from metal-organic networks, opening the door to new materials. They discovered a new set of building blocks for assembling various quasicrystalline structures.
Researchers at Caltech discovered quasicrystals in laboratory experiments after simulating asteroid collisions. The team hypothesized that the energy released during a collision could trigger a rapid cycle of compression and cooling, leading to the formation of these rare structures.
Artur Avila, a renowned Brazilian mathematician, has won the TWAS-Lenovo Science Prize for his groundbreaking work on dynamical systems and chaos theory. His research has helped resolve major mathematical quandaries and brought global awareness of Brazilian mathematics.
A team from Princeton University has discovered a second natural quasicrystal in an ancient meteorite, bringing to two the number of natural quasicrystals ever discovered. The newly found quasicrystal has a decagonal symmetry and is made up of aluminum, nickel, and iron.
Researchers found a unique arrangement of spin glass behavior in these new quasicrystals, which is distinct from the magnetic ordering seen in crystalline structures. The discovery provides insight into magnetism in complex environments and opens up new avenues for studying rare-earth quasicrystals.
Researchers explore the potential of quasicrystals in fundamental optics research, offering opportunities for building smaller optical circuits and creating more efficient devices. Quasicrystals' unique properties make them an attractive area of study for applications in biosensing, solar cells, and spectroscopy.
Researchers Paul J Steinhardt and Luca Bindi found naturally occurring quasicrystal samples in far eastern Russia, strengthening the case that they arrived on Earth from outer space. The samples were brought to the area during the last glacial period, suggesting a meteorite hit around 15,000 years ago.
Researchers have found a new type of defect in quasicrystals that extends beyond the surface and into the bulk. This discovery sheds light on the relationship between surface and bulk defects in materials, which is crucial for understanding the strength and properties of nanostructures.
Researchers at Kent State University have broken the world record for packing tetrahedra, with a packing fraction of 85.03%. They also discovered that the simplest regular solids form quasicrystals when compressed.
Scientists at the University of Michigan discovered that certain pyramid shapes can spontaneously organize into intricate quasicrystals without any external interactions. This finding could lead to the development of new materials with unique properties, such as optical properties useful for communication and stealth technologies.
Scientists at University of Michigan used computer simulations to understand how quasicrystals form intricate patterns without rearranging atoms. This breakthrough could lead to new materials with improved properties, such as resistance to wear and corrosion.
Quasicrystals, crystal-like materials with atomic structures in between order and disorder, are shown to not conduct electricity like traditional crystals. Mathematician David Damanik offers a key proof for this, revealing that electrons behave uniquely within quasicrystals.
Researchers at Duke University developed a computer model to study the effect of adsorbed gas on quasicrystal alloys, which could lead to improved low-friction properties for machine parts. The model suggests ways to control the transition from quasicrystalline to crystalline structures, preserving the alloy's high lubricity.
Researchers tested a long-held friction theory using a quasicrystalline material, finding that friction along the periodic surface was significantly higher than along the aperiodic axis. The study's findings have implications for understanding the relationship between a material's structure and its frictional properties.
Scientists use AFM and STM to study frictional force in decagonal quasicrystals, revealing strong connection between interface structure and dissipation. The results show that friction is greater along the periodic direction, with an anisotropy of up to 8 times greater than in the aperiodic direction.
Researchers at Princeton University developed a new structure that can trap and redirect light, outperforming ordinary crystals in photonic circuits. This breakthrough could lead to the development of faster and more energy-efficient communication devices.
Researchers have successfully created three-dimensional quasicrystals, opening up new possibilities for industrial and commercial applications. The unique optical properties of these quasicrystals have the potential to manipulate light in a way similar to semiconductors, enabling innovative functions.
An-Pang Tsai wins inaugural Dubois Award for his remarkable string of discoveries of new quasicrystalline phases, including five main families. His work has had a profound impact on the science of quasicrystals, enabling the preparation of large samples and fundamental property measurements.
Researchers have found that electrons in quasicrystals travel in bands with distinct momentum and energy, correlated with the structure of the alloy. This discovery challenges theoretical expectations and opens new avenues for inquiry into the material's properties.