Articles tagged with Quasicrystals
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
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.
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.
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 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.