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Making X-ray movies for ultrafast dynamics in nanomatter
From a two-colour diffraction pattern (left), two snapshots of a helium droplet doped with xenon nanoparticles can be reconstructed (centre). These images can inform a potential 3D rendering of a xenon-doped helium nanodroplet (right). An overarching goal of ultrafast science is to enable researchers to watch structural changes in matter on their natural timescale. Experimentally, this translates into taking two snapshots of the same nanoscale object that are only femtosecond
1 day ago4 min read


Waves find order in the chaos of an oddly shaped cavity
Artistic rendering of a hyperbolic wave attractor forming in an odd-shaped cavity inside a hyperbolic material. Credit: Andrea Alu NEW YORK, September 28, 2026 — When light or sound bounces around inside an oddly shaped room, its reflections can quickly become difficult to predict. But new research led by scientists at the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) shows that waves can behave very differently when they travel through a special cl
2 days ago4 min read


Outrunning the vortices: Picosecond pulses push superconductors beyond their critical-current limit
image: <p>A current pulse lasting only a few picoseconds passes through a superconductor before magnetic vortices have time to move. This lets the current reach far beyond the usual critical current, up to the point where Cooper pairs begin to break apart.</p> Credit: © Jörg Harms, Eryin Wang (MPSD) Superconductivity is one of the most striking collective phenomena in quantum materials. When certain materials are cooled below a characteristic transition temperature, thei
6 days ago3 min read


Spin waves inside a nano-oscillator imaged for the first time
Measurements on Maxymus show (left) that the magnon amplitude does not increase uniformly at both edges of the constriction, but only at one edge. This experimental finding can only be reproduced by micromagnetic simulations if three effects that have hitherto been neglected are taken into account (right). © Advanced Materials (2026): DOI: 10.1002/adma.74547 For the first time, researchers have directly imaged the magnetisation dynamics inside a spin Hall nano-oscillator — a
Sep 233 min read


Disorder is key to tuning a high-temperature superconductor
Using a new technique, Paul Malinowski and other researchers in Kyle Shen’s lab found that iron selenide’s superconducting “dome” is more closely linked to resistance caused by imperfections in its crystal lattice than to the number of electrons flowing through the crystal. @Chris Kitchen/College of Arts and Sciences Cornell physicists have discovered that minimizing disorder, not varying electron count, is the key factor for controlling the superconductivity in the unique ma
Sep 174 min read


Warwick chemists overturn 40-year assumption about a key class of superconductor
Scientists have shown that a material treated for 40 years as a uniform, textbook superconductor is in fact a patchwork of different crystal structures throughout its bulk, using one of the latest 3D imaging techniques to see deep inside the crystal for the first time. High-temperature superconductivity is widely regarded as one of the most significant scientific discoveries of the past 40 years. It promises technologies built on electricity that flows with zero resistance an
Sep 172 min read
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