Articles tagged with High Pressure Physics
A Rutgers-led study predicts increased frequency of dry spells in the US and Mexico, and heavy rainfall events in south Asia and China. Subtropical stationary waves play a key role in explaining these extremes, which are expected to worsen with climate change.
Researchers computationally predicted unique properties, including room-temperature super-elasticity, in iron arsenide materials. The material's structure collapsed noticeably under pressure, with atomic structures near the calcium and potassium layers collapsing first.
New research has uncovered methane-producing microbial communities in fracking wells, which could have implications for energy companies and human health. The study also suggests parallels between these microbes and those found in the human gut and soil.
Researchers at Purdue University have discovered a way to manipulate the interaction between paired and lined-up electrons in semiconductors. This finding has potential implications for electronic devices and quantum computing, as it allows for the tuning of electron-electron interactions and the control of phase transitions.
A new study in Frontiers in Psychology found that basketball teams playing for survival in critical NBA playoff games are more likely to lose. The researchers analyzed 1,930 playoff games and discovered that the threat of elimination actually made teams more likely to lose, suggesting they 'choke' under pressure.
Researchers have successfully fabricated nanocrystalline diamonds using plasma vapor deposition, enabling the creation of micro-anvils with pressures up to 500 gigapascals. The high-pressure capabilities of these nanocrystalline diamonds hold promise for studying materials under extreme conditions.
Researchers from Brazil, China, and Italy developed a model to map the phases of coesite formation, a polymorph of silica that occurs under high pressure. The study uses atomic computer simulation to describe the interactions among atoms and the transformations resulting from pressure changes.
A team from Okayama University in Japan has discovered a new family of ice phases called aeroices, which have the lowest density of all known ice crystals. These ices can be more stable than zeolitic ice at certain thermodynamic conditions under negative pressure.
Researchers have solved a long-standing riddle in the analysis of meteorites from Moon and Mars using high-pressure experiments at DESY's X-ray light source PETRA III. The study reveals that cristobalite can transform into seifertite under non-hydrostatic conditions, challenging previous assessments of meteorite formation conditions.
Researchers propose alternative petrogenesis model for Archean trondhjemite, suggesting tonalitic rocks as primary source material. Simulations using quantitative phase modeling approach reveal comparable major and trace element compositions with trondhjemite rocks.
Researchers design a metamaterial that expands in size under increasing hydrostatic pressure, which can advance 3D printing beyond natural limitations. The structure's unique properties make it stable and physical despite violating fundamental laws of physics.
Researchers at Colorado State University have successfully recreated the extreme conditions found in stars using compact lasers and ultra-short pulses irradiating nanowires. The experiment achieved pressures surpassing those in the center of our sun, opening a path to studying high-energy density physics.
Scientists at MIPT create ultrastrong material by applying high pressure to multiwall carbon nanotubes, forming bonds between them. The resulting material retains the durability of original nanotubes, making it suitable for harsh conditions.
Researchers at UAB have successfully created as yet unknown new materials by applying pressures greater than those found at the center of the Earth. By using tiny nanocrystalline-diamond anvils, they were able to reach pressures of up to 264 gigapascals.
A new study links melting in Greenland to Arctic amplification, a phenomenon fuelled by rising global temperatures and melting sea ice. The jet stream's northern swing reached record-breaking latitudes, allowing warm air to penetrate further north.
A new study provides evidence linking melting in Greenland to Arctic amplification, with a northern swing of the jet stream reaching latitudes never before recorded. The study's findings fit the anticipated effects of Arctic amplification, which fuels a feedback loop of rising global temperatures and melting sea ice.
A new study by UNIST researchers has observed structural changes in carbonic anhydrase for the first time. The enzyme catalyzes a reaction converting CO2 and water into protons and bicarbonate ions at a rate of 106 reactions per second, crucial for regulating chemical environments.
Research on new unconventional superconductors like K2Cr3As3 and Li1?xFexOHFeSe reveals robust superconductivity and full volume. Weyl semimetal TaP exhibits chiral magnetic states with huge magnetoresistance, triggering further studies.
Researchers at the University of Edinburgh successfully recreated an elusive form of hydrogen, which exists only under extremely high pressures. The study found that at pressures equivalent to 3.25 million times that of Earth's atmosphere, hydrogen entered a new solid phase and showed unusual properties.
Researchers achieve unprecedented pressures of up to 770 GPa, revealing osmium's structural stability and interaction between core electrons. The findings have implications for understanding physics and chemistry of highly compressed matter.
Scientists have discovered that injecting tiny grains of lithium into a plasma can dramatically improve its temperature and pressure, doubling the pressure at the outer edge and increasing the length of time it remains high. This breakthrough could lead to more efficient fusion reactions and potentially shorten the development timeline.
Scientists Russell Hemley and Ivan Naumov found that certain metals transition from being metallic to insulating under pressure, and vice versa. They identified the physics framework underlying these transformations, which involves specific electron configurations and asymmetry.
Researchers found a natural dispersion mechanism that forms small oil droplets under high pressure, reducing the amount of oil reaching the surface. The study suggests this mechanism may replace chemical dispersants in some cases.
Researchers have identified a new phase of oxygen with unprecedented characteristics, including the formation of quartet molecules that exhibit a 'quantum dance' at high pressures. This phenomenon leads to fluctuating magnetic properties in one phase and loss of magnetism in another.
Scientists from GEOMAR found that methane hydrate outgassing off Svalbard is likely caused by natural processes, rather than global warming. The team discovered that seasonal temperature fluctuations can push the stability zone of gas hydrates, leading to outgassing.
Researchers discovered a temperature turnaround point in the atmospheres of Jupiter, Saturn, Uranus, Neptune, and Titan, which may be common to billions of planets. This phenomenon occurs at a pressure of about 0.1 bar and is likely caused by infrared radiation absorption.
Researchers at PPPL have developed an online experiment that allows users to control a real physics laboratory from any location. The Remote Glow Discharge Experiment enables users to interact with a plasma discharge, observing and controlling its effects on the apparatus.
Researchers have discovered a new metallic structure of carbon that is stable at ambient temperature and pressure. The discovery could lead to breakthroughs in materials science and technology, including the development of lightweight metals for space applications.
Researchers at Argonne National Laboratory have found a way to make a material expand instead of compress under pressure. This counterintuitive discovery could lead to the creation of new porous framework materials with unique properties.
Scientists have developed a way to generate super-high pressures without using shock waves, allowing them to study materials at conditions corresponding to the core of gas giant planets. This breakthrough could lead to new revelations about how the Earth evolved and how iron functions at extremes.
A Duke University-led study predicts that high-pressure systems over oceans will intensify, contributing to droughts and extreme summer rainfall in the northern hemisphere. The North Atlantic and Pacific subtropical highs are expected to strengthen due to increasing greenhouse-gas concentrations.
Researchers discovered germanium undergoes structural changes to become metallic under high pressure, exhibiting superconductivity caused by phonons. The findings matched theoretical predictions, confirming the element's potential applications in electronics and materials science.
Research team subject lithium to intense pressure and low temperatures, revealing its surprising properties. The element becomes a liquid at room temperature and refuses to freeze until a chilly -115o F, exhibiting complex crystalline states at high pressures.
A team of scientists has discovered a general trend in the behavior of metal hydrides ScH3, YH3, and LaH3, finding that superconducting states are strongest when materials are weakest. The researchers also found differences between the three metal hydrides, with a secondary superconducting phase present in YH3 but absent in ScH3 and LaH3.
Scientists support abiotic synthesis of methane, a main ingredient in natural gas, through chemical reactions. The study suggests that extreme conditions deep below Earth's surface can lead to hydrocarbon formation.
A study by the University of Exeter found that social support from friends and family significantly improves sports performance, particularly under stress. The researchers discovered that athletes with high levels of support maintained good performance even when experiencing personal problems or playing under pressure.
Researchers at Uppsala University have successfully formed a substitutional alloy between Cerium and Aluminium under high pressure, defying previous limitations on element compatibility. The discovery opens up possibilities for creating new alloys with unique mechanical, electronic, and magnetic properties.
Under high pressure, oxygen molecules interact through their outermost electron clouds, increasing interactions and changing orbital locations. This leads to the formation of molecular clusters like (O2)4 at pressures about 10,000 times atmospheric, with potential applications in new materials and technologies.
Researchers used computational modeling to demonstrate how manganese oxide changes from an insulator to a conductor under high pressure. The study sheds light on the behavior of similar minerals deep in the Earth's crust and mantle.
Researchers have created conditions similar to those inside the Earth to study its inner workings. The study provides new insights into the planet's materials and processes under high pressure, revealing surprising findings about the D'' layer near the core.
Researchers at Virginia Tech are conducting a study on high-pressure processing to inactivate Norwalk virus, with the goal of making consumers safer from foodborne illnesses. The study will evaluate various high-pressure processing schedules and compare results obtained from human subjects to those obtained using mice.
Researchers at Carnegie Institution's Geophysical Laboratory have created a super-hard form of graphite that can rival diamond in strength. The new material was made by subjecting graphite to extreme pressures and studying its atomic structure using high-intensity X-rays.
Scientists have found that combining high temperature and ultra-high pressure can reduce prions to non-infective levels, improving the safety of meat products. This approach may also provide insights into understanding prion structure.
The Cornell center will focus on high-energy density plasmas, developing diagnostic devices and studying extreme conditions such as plasma jets and X-pinch point imaging sources. The research aims to create hot, dense plasmas that can produce neutrons associated with nuclear fusion.
Researchers use diamond anvil cells to test bacteria's survival under extreme pressure, finding they can withstand conditions similar to deep ocean trenches and the deep crust. The study's findings raise questions about the impact of pressure on life's evolution and expand our understanding of potential habitable niches beyond Earth.
A study by the High Pressure Mineral Physics Group at the Max Planck Institute for Chemistry revealed that at high pressures, elements with strong affinity for metallic iron (siderophilic elements) lose their characteristic behavior. This discovery suggests an alternative explanation for the abundance of these elements in the Earth's u...