effect
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Physics
Peeling back the layers: investigating the capping effect on nickelate superconductors
NSLS-II beamline scientists (top row, left to right) Jonathan Pelliciari, Claudio Mazzoli, (bottom row, left to right) Andi Barbour, Valentina Bisogni, Shiyu Fan, Vivek Bhartiya, Taehun Kim. Credit: Kevin Coughlin/Brookhaven National Laboratory So-called “infinite layer” nickelate materials, characterized by unique crystalline and electronic structures, show great potential as high-temperature superconductors. Studying these materials remains difficult for researchers. They were synthesized…
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Earth
Climate researchers discover that clouds have a surprising effect on surface warming
DLR decomposition changes in SGP. Credit: Nature (2025). DOI: 10.1038/s41586-024-08323-x Researchers at McGill University have found that changes in clouds are slightly mitigating global warming. While temperatures continue to rise due to greenhouse gases, the amount of heat trapped near the surface has slightly decreased due to less low-lying cloud cover over land. “We started this study to observationally test…
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Physics
Room-temperature non-reciprocal Hall effect could heat up future technology development
The researchers deposited textured platinum nanoparticles, represented by red triangles, onto a silicon semiconductor, represented by blue squares. Electrons, represented by white circles and arrows, scatter asymmetrically from the nanoparticles, causing a voltage, represented by yellow arrows, flowing perpendicular to the current, represented by black arrows, applied to the semiconductor. The relationship between voltage and current can be described mathematically…
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Physics
Physics team discovers quantum Mpemba effect with many ‘cool’ implications
Genuine quantum Mpemba effects in multi-qubit systems appear on different timescales. Credit: Physical Review Letters (2024). DOI: 10.1103/PhysRevLett.133.140404 Initially conducting their investigation out of pure curiosity, the researchers made discoveries that bridged the gap between Aristotle’s observations 2,000 years ago and modern understanding, while simultaneously making a difference between various “cool” and “cool” It opened the door to new meanings.…
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Physics
Harnessing magnetic relaxation: the “Pacman effect” allows precise organization of superparamagnetic beads
The orbital representation of a magnetic colloid dipole (left) resembles a Pac-Man shape (right). Credit: Biswal lab/Rice University Particles larger than ordinary molecules or atoms but invisible to the naked eye can form a variety of useful structures, including miniature propellers for microrobots, cell probes, and steerable microwheels designed for targeted drug delivery. Masu. When Lisa Biswal and her team…
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Physics
Physicists reveal that tailwinds have little effect on cycling speed
Author Martin Beer in an aerodynamic tuck, a cycling position that reduces drag. Credit: Martin Beer In the cycling world, “To Everest” means cycling up and down the same mountain, reaching a total altitude of Everest’s 8,848 metres. After a new “Everesting” bicycle record was set a few years ago, social media erupted with debate about the strong tailwind (5.5…
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Science
Tunable nonlinear Hall effect observed in tellurium at room temperature.
Schematic structure of Te flakes and the performance of NLHE in Te devices. Credit: Prof. Zeng’s team The team discovered a remarkable nonlinear Hall effect and radio rectification effect at room temperature in the elemental semiconductor tellurium (Te). The study is published in Nature Communications. The Nonlinear Hall Effect (NLHE) is a second-order response to an applied alternating current (AC)…
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