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  • First ever atomic movie reveals hidden driver of radiation damage
    Researchers have visualized atoms in motion just before a radiation-driven decay process occurs, revealing a surprisingly dynamic scene. Instead of remaining fixed, the atoms roam and rearrange, directly influencing how and when the decay unfolds. This “atomic movie” shows that structure and motion play a central role in radiation damage mechanisms. The findings could improve […]
  • MIT scientists finally see hidden quantum “jiggling” inside superconductors
    MIT physicists have built a powerful new microscope that uses terahertz light to uncover hidden quantum motions inside superconductors. By compressing this normally unwieldy light into a tiny region, they were able to observe electrons moving together in a frictionless, wave-like state for the first time. This discovery opens a new window into how superconductors […]
  • A lab mistake at Cambridge reveals a powerful new way to modify drug molecules
    Cambridge scientists have discovered a light-powered chemical reaction that lets researchers modify complex drug molecules at the final stages of development. Unlike traditional methods that rely on toxic chemicals and harsh conditions, the new approach uses an LED lamp to create essential carbon–carbon bonds under mild conditions. This could make drug discovery faster and more […]
  • Scientists just found a way to 3D print one of the hardest metals on Earth
    Scientists have found a promising new way to manufacture one of industry’s toughest materials—tungsten carbide–cobalt—using advanced 3D printing. Normally, producing this ultra-hard material requires high-pressure processes that waste large amounts of expensive tungsten and cobalt. The new approach uses a hot-wire laser technique that softens the metals rather than fully melting them, allowing manufacturers to […]
  • Scientists turn scrap car aluminum into high-performance metal for new vehicles
    Scientists at Oak Ridge National Laboratory have created a new aluminum alloy called RidgeAlloy that can turn contaminated car-body scrap into strong structural vehicle parts. Normally, impurities introduced during recycling make this scrap unsuitable for high-performance applications. RidgeAlloy overcomes that challenge, enabling recycled aluminum to meet the strength and durability standards required for modern vehicles. […]
  • Electrons catapult across solar materials in just 18 femtoseconds
    Electrons in solar materials can be launched across molecules almost as fast as nature allows, thanks to tiny atomic vibrations acting like a “molecular catapult.” In experiments lasting just 18 femtoseconds, researchers at the University of Cambridge observed electrons blasting across a boundary in a single burst, far faster than long-standing theories predicted. Instead of […]

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Exchange interaction
Electrons prefer parallel spins due to the quantum mechanical concept of exchange energy, which lowers their system's total energy. This preference is a result of...
Educational graphic explaining ferromagnetism, showing magnetic domains, domain walls, exchange interaction versus atomic separation, and atomic orbital shapes contributing to magnetic behavior.
The basics of ferromagnetism
Magnetism is the force that is exerted by magnets when they repel or attract each other. It is caused by the motion of electric charges....
Featured image of the introduction to skyrmions
An introduction to Skyrmions
Skyrmions are a class of topological solitons discovered by Tony Skyrme in the 1960s, he used this concept to describe how subatomic particles exist as...
Diagram of the Bohr atom model with electron orbit levels labeled n=1n=1 to n=7n=7, showing Lyman, Balmer, and Paschen series, and a spectral intensity graph in the lower left.
The Bohr atom model
The Bohr model revolutionized our understanding of the atom. It proposed electrons exist in fixed energy levels, challenging classical physics. This explained the hydrogen spectrum...
Illustration of a ferromagnetic resonance (FMR) spectroscopy setup showing a microwave signal line, ground planes, and a ferromagnetic sample on a metal substrate, with vector directions and magnetic field labels. An inset graph displays a typical FMR absorption derivative spectrum.
Ferromagnetic Resonance (FMR) spectroscopy
Ferromagnetic resonance (FMR) is a powerful tool for investigating magnetism in materials. By applying a microwave field and measuring its absorption, FMR reveals details like...
Illustration of spin pumping showing magnetization dynamics in a ferromagnet (F) transferring spin current into a non-magnetic layer (N), with vectors and precession visualized, and the title "Spin pumping: An Introductory Overview".
Spin pumping: An Introductory Overview
With STT, we have seen that a current can move magnetization, but the reciprocal effect is also possible, namely the generation of a spin current...