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Phys.org / Faint far-infrared radiation drives a correlated insulator-to-metal transition in magic-angle graphene
One of the central ideas in modern physics is the phase transition—a sudden transformation of the state of a material. We encounter phase transitions throughout everyday life: water freezes into ice, wax melts in the warmth ...
Phys.org / Organic crystal reveals how Joule heating stabilizes resistive switching
Metal-insulator transitions (MITs), in which a material changes from a metallic state with low resistivity to an insulating state because of a change in an external parameter, such as temperature, pressure or an electric ...
Phys.org / Scientists put algae to work making fuel. AI reveals which cells are pulling their weight
Algae have a habit of turning up where they're not wanted. They coat your swimming pool in green gunk, cling to rocks at the beach and even make headlines when they take over prominent reservoirs, such as the White House ...
Phys.org / Human-driven fires have shaped the Amazonian forest for over 10,000 years
New research is dismantling the longstanding myth of the "pristine" Amazon. A reconstruction of 10,000 years of Amazonian pyrogeography, based on 1,361 radiocarbon (¹⁴C) dates across 303 sites—including soil charcoal and ...
Phys.org / Physicists finally put Feynman's path integral to the test
For nearly 80 years, physicists have relied on a thought experiment created by Richard Feynman to predict how quantum particles behave. For the first time, researchers in China have tested this trick directly in the lab.
Phys.org / Light reveals internal motion in electron crystals and can trigger their melting
Electrons, particles that carry a negative electric charge, typically move through materials. At low densities and temperatures, however, the electrical repulsion between them can overpower their tendency to move, prompting ...
Phys.org / Tiny oxygen gaps may determine whether next-generation memory films store data well
Researchers have captured in real time the "birth moment" when the performance of a next-generation memory material is determined. The key lies in controlling oxygen vacancies, microscopic defects created when oxygen atoms ...
Phys.org / Texas fossil reveals early insects kept aquatic limbs during move onto land
The formation of complex terrestrial ecosystems was a significant innovation in the evolutionary history of life on Earth. This event signified the expansion of life beyond marine environments and marked the beginning of ...
Phys.org / A few minutes of freezing can change the fate of iron in nature
Just a few minutes of freezing and thawing can have a decisive impact on how ferrihydrite, the most reactive iron mineral in cold soils, permafrost and glaciers, transforms, according to researchers at Umeå University. As ...
Medical Xpress / Early nicotine vapor exposure increases nicotine seeking later in life, study finds
Nicotine vaping during adolescence may leave a lasting imprint on the brain's reward system, driving nicotine-seeking behavior well into adulthood even after long stretches without any exposure, according to new research ...
Phys.org / 3D atomic imaging reveals a new pathway to crystal formation
The most common scientific approach for thinking about how condensation, freezing and other phase transitions begin is based in classical nucleation theory, which was developed about a century ago. Thousands of experiments ...
Phys.org / Chemical physicists quantitatively model electron interactions in real quantum materials
A team of scientists from Caltech and Yale University has shown for the first time how to accurately quantify an important quantum phenomenon in metals, called the Kondo effect, for specific real materials. Unlike previous ...
