Articles tagged with Phase Transitions
Researchers at UChicago create a method to efficiently calculate quantum phase transitions, which can lead to technological advancements. The new approach simplifies calculations by using a two-electron reduced density matrix, allowing for more accurate and efficient simulations.
The Replica Exchange Grand Canonical (REGC) method describes how surfaces change in contact with reactive gas phases under different temperature and pressure conditions. The approach identifies 25 thermodynamically stable surface phases and predicts stability phase diagrams for real systems.
Researchers have successfully mapped the potential energy surfaces of individual water molecules in liquid water at room temperature and normal pressure. This breakthrough uses X-ray analysis and statistical modeling to reveal the complex behavior of water molecules, shedding light on their role as a solvent.
Researchers at Eindhoven University of Technology accidentally discovered that adding more water to a liquid solution turns it back into a gel, and then further dilution forms another gel. The team's findings have significant implications for various fields in chemistry and biology.
Scientists investigated the local structure of a high-entropy Cantor alloy using X-ray absorption spectroscopy, revealing structural relaxations in chromium atoms and no evidence of secondary phases. The study correlated these findings with macroscopic magnetic properties.
Researchers constructed a synthetic stub lattice in two coupled rings of different lengths, observing flat bands, band transitions and mode localization. This experimental demonstration enables dynamic control of light and may pave the way for future applications in optical communications.
A team of researchers from Rice University has modeled the dynamics of grain boundaries in polycrystalline materials using a rotating magnetic field technique. The study shows that grain boundaries can change readily in response to shear stress, and voids in these structures can act as sources and sinks for their movement.
Researchers have successfully observed reversible transitions between two liquid states of water at low temperatures and high pressures, revealing the existence of two liquid waters. This finding explains anomalous behavior in low-temperature liquid water and has implications for aqueous solutions and biomolecules.
Scientists at Paul Scherrer Institute have observed artificial spin ice structures aligning with temperature changes, revealing a complex phase transition. The discovery could lead to novel high-speed computers with low power consumption.
People with positive past attitudes and long-term planning skills are less depressed, sleep better, and handle isolation more easily. Those who focus on short-term plans and have negative past attitudes show signs of depression, poor sleep quality, and mental disorders.
Researchers have observed persistent swinging of electrons between atomic sites in crystals using ultrafast X-ray diffraction. The study reveals relocation of valence charge on the length scale of interatomic distances, paving the way for future studies of functional materials.
A team of researchers at The University of Tokyo has created a model that reveals the role of emergent elastic fields in chiral molecular and colloidal crystals. The findings provide a potential switch for developing new electro- and magneto-mechanical devices.
Researchers at Martin Luther University Halle-Wittenberg create a new shape-stabilized phase change material that can absorb significantly more heat and is made of harmless substances. The material, which can be used as large panels integrated into walls, can store up to 24 times more heat than conventional concrete or wallboard.
Researchers have developed a direct method for generating complex structured light through intracavity nonlinear frequency conversion. This technique uses transverse mode locking to produce vortex beams, which are then converted into second-harmonic generation beams with distinct structural characteristics. The study demonstrates the p...
Researchers at Brookhaven Lab propose a cosmological phase transition as the key to supermassive black hole formation in the early universe. This process, facilitated by ultralight dark matter particles, enabled efficient collapse of matter into black holes.
Researchers have confirmed a novel quantum topological material for ultra-low energy electronics, reducing energy consumption by a factor of four. The study reveals the potential of zigzag-Xene-nanoribbons to make topological transistors with robust edge states and low threshold voltage.
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 used lab-based mimicry to reveal a new crystal structure that has major implications for our understanding of the interiors of large, rocky exoplanets. This discovery could have revolutionary implications for how we think about the dynamics of exoplanet interiors.
Researchers discovered a phase transition from charge-density-wave order to electronic nematicity in Kagome superconductor CsV3Sb5 at 35 Kelvin. This novel nematicity has Z3 symmetry, distinct from high-temperature superconductors.
Researchers at Tel Aviv University found that a specific type of bacteria, Weissella, becomes dominant in the gut microbiomes of locusts when they form swarms. This change may provide the bacteria with an evolutionary advantage, allowing them to spread and infect more locusts.
Researchers at City University of Hong Kong have discovered a super-elastic high-entropy Elinvar alloy that retains its stiffness even after being heated to 1000 K. The alloy's unique structure and chemical composition allow it to store a large amount of elastic energy, making it suitable for high-precision devices in aerospace enginee...
The study reveals that a single folding mechanism can generate an infinite family of shapes in flexible structures. Researchers have developed a novel approach to predict and control tough, flexible structures from skyscrapers to microscale using conformal deformations.
Researchers have created a new rubber-like solid substance with surprising qualities: it can absorb and release large quantities of energy. The material is programmable, thanks to its use of tiny magnets embedded in an elastic substance, enabling predictable phase transitions.
A survey study assessed psychological distress among U.S. adults during four different phases of the COVID-19 pandemic, finding significant increases in symptoms during lockdowns and reopening phases. The study suggests that ongoing mental health support is essential to mitigate these effects.
Researchers from SUTD and A*STAR IMRE demonstrate the use of chalcogenide nanostructures to reversibly tune Mie resonances in the visible spectrum, paving the way for high resolution colour displays. The technology relies on phase change materials, including antimony trisulphide nanoparticles.
New research introduces adaptable smart window design that can heat or cool a house. The film changes its properties to absorb sunlight in winter and reflect it in summer, reducing energy consumption by 20-34%.
Researchers from Lawrence Berkeley National Laboratory, Georgia Institute of Technology, and the University of California, Berkeley, describe advances in understanding phase change materials for thermal energy storage. Better understanding liquid state physics may help accelerate technology development for the energy sector.
A team of Boston College researchers has discovered a dramatic re-arrangement of magnetic domains with thermal cycling in a Mott insulator. They used spin-polarized scanning tunneling microscopy to map the local strength of antiferromagnetic ordering on nanometer length scales.
Researchers find that triangular-patterned materials can exhibit a mashup of three different phases, with each phase overlapping and competing for dominance. As temperature increases, the material becomes more ordered due to the breaking down of these competing electron arrangements.
A new approach evaluates vaporization enthalpies of alkylaromatic compounds and their derivatives, showing high accuracy compared to experimental methods. The method uses additivity principles and accounts for non-additive effects due to π-conjugation and intermolecular hydrogen bonding.
New research reveals that a layer of 'hot', electrically conductive ice could be responsible for generating the magnetic fields of ice giant planets. The study found two forms of superionic ice, one of which may exist in the interiors of Uranus and Neptune.
Researchers used computer modeling to study prethermal discrete time crystals (DTCs) using classical physics, not quantum physics. They found that a simpler approach can be used to understand the properties of DTCs, which are highly complex physical systems.
A new Australian study examines systems transitioning from a normal fluid to a quantum state known as a superfluid, which can flow with zero friction. The research provides new insights into the formation of these remarkable states, revealing different timescales and correlations involved.
Researchers have discovered a room-temperature transition between 1D and 2D electrical conduction states in topological crystals of bismuth and iodine. The material's electronic behavior changes at a transition temperature around 80 degrees Fahrenheit.
Researchers at the University of Texas at Dallas have produced large, high-quality bismuth iodide crystals that demonstrate the existence of weak topological insulators. The crystals undergo a phase transition into a novel structure at room temperature, altering their electronic properties.
Researchers at GIST develop a non-contact, nondestructive approach to characterize crystal structures in thin films, shedding light on surface symmetries in SrRuO3. The technique offers a platform for structural characterization of surfaces and interfaces using optical techniques.
Researchers discovered three phases of growth that explain how cetaceans shift their nasal passage from a parallel to an angled orientation. This finding provides insight into the developmental process and could inform our understanding of cetacean evolution.
Researchers at Texas A&M University have developed a method to cool steam turbines using phase change materials, potentially reducing fresh water usage. By leveraging machine learning techniques, they created a system that can predict when and how much of the PCM will melt and freeze, maximizing cooling power and capacity.
Researchers discovered MnS2 transitions into a metallic state and then back to an insulator as pressure is applied, resulting in significant decreases in resistance. This phenomenon occurs due to the interaction of electron spin states under high pressure.
Scientists introduced tiny precipitates into an alloy, tuning their size and spacing to enhance both strength and ductility. This approach allows for the creation of lightweight, strong materials that can withstand catastrophic deformation without breaking.
Scientists from Japan and China have discovered three previously unknown mechanisms of phase transition in soft materials, shedding light on the dynamics of solid-to-solid transformations. This research has diverse applications, including targeted drug delivery and development of new materials with tailored properties.
A RMIT-led international collaboration has achieved record-high electron doping in a layered ferromagnet, causing magnetic phase transition with significant promise for future electronics. Ultra-high-charge, doping-induced magnetic phase transition in Fe5Ge2 enables promising applications in antiferromagnetic spintronic devices.
Scientists from Tokyo Metropolitan University used super-resolution machine learning to study phase transitions by simulating tiny arrays and then generating a larger estimate. This technique allows for massive computational cost savings, enabling the study of complex materials behavior.
Researchers found that even in hydrated subducting slabs, dry olivine can exist, resolving a long-standing paradox. This discovery suggests hydrous minerals play crucial roles in the Earth's interior water cycle and contribute to deep-focus earthquakes and large plate deformations.
Researchers at Federal University of Rio de Janeiro discover a crucial link between phase transition and cancer pathology. Mutant p53 aggregates are formed through liquid-to-liquid phase separation, progressing to a gel-like or solid-like state that plays a key role in cancer development.
Researchers at Leipzig University have developed a new model that enables precise determination of the features in complex pore networks, revealing potential applications in drug release, sensor technology and energy storage.
Scientists discover a crucial phase of embryonic development in zebrafish where the solid-like tissue becomes fluid-like, leading to morphogenesis. The study reveals that this change is caused by a critical point in cell connectivity, similar to phase transitions in non-living systems.
Scientists from the NANOGrav Collaboration detected very low-frequency gravitational waves with potential implications for dark matter research. The signals are consistent with phase transitions in the early universe and extremely light axion-like particles, considered promising candidates for dark matter.
Researchers at SUTD developed a new connection between exploration-exploitation trade-off in multi-agent AI systems and Catastrophe Theory. This discovery aims to improve the performance of AI systems, such as robotic space missions and healthcare management.
Researchers have successfully mapped the metallic and insulating regions of atomically engineered devices made from rare-earth nickelate compounds at near-atomic resolution. This breakthrough enables a deeper understanding of the physics behind these electronic materials, which may be used in future computing approaches.
Researchers analyze RHIC collision data to track transitions between nuclear phases, aiming to understand the universe's evolution and neutron star cores. The analysis reveals tantalizing signs of turbulence, hinting at a possible 'critical point' where quarks and gluons transform from one phase to another.
Researchers propose a new type of dark energy that could explain conflicting measurements of the universe's expansion rate. The theory suggests that dark energy underwent a phase transition triggered by the universe's expansion, resulting in a more consistent explanation for observed phenomena.
Researchers have developed a method to characterize topological phases of light using nonlinear instabilities, offering a simpler way to probe and generate these states. The approach exploits the quantized properties of vortices formed during modulational instability, providing a new tool for identifying different topological phases.
Researchers from Immanuel Kant Baltic Federal University develop an optimized arc melting technique to produce highly pure MAX-phases with controlled stoichiometry and pressure. This leads to increased manganese incorporation and reduced side phases, crucial for fundamental understanding of MAX-phase magnetism.
During the early COVID-19 outbreak in Italy, patients received potentially effective yet unapproved treatments due to lack of available therapies. The study reveals significant changes in drug demand compared to pre-pandemic periods.
Researchers from NUS developed an ultra-thin material with unique properties that could achieve faster and more energy-efficient memory chips. They created 'whirling' nano-structures in anti-ferromagnets, which are stable structures that can be moved at whirlwind speeds, enabling new types of information bits.
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 at the University of Göttingen have successfully filmed a phase transition of a crystal structure using laser beams and ultrafast transmission electron microscopy. The experiment reveals the rapid formation and growth of tiny regions where the material undergoes a structural change, providing fundamental insights into light...
Scientists have experimentally confirmed the presence of an intermediate hexatic phase in a monolayer dusty plasma system, resolving a long-standing question in theoretical physics. The research uses an unconventional approach to form a monolayer dusty system and precisely controls temperature to identify the phase transition points.
A team of researchers at the University of Minnesota has discovered a groundbreaking one-step process for creating materials with unique properties, called metamaterials. They demonstrated a variable photonic crystal material with 99 percent efficiency using temperature and laser wavelength.