Disorder and Illumination
Researchers have long used low‑temperature illumination to improve electronic transport in two‑dimensional (2D) systems. In GaAs‑based quantum wells, a red LED at ~10 K reduces disorder, raising electron mobility and sharpening fractional quantum Hall signatures. A new preprint shows that deep‑UV (5 eV) light similarly enhances charge homogeneity in graphene encapsulated by hexagonal boron nitride (hBN). Although the exact microscopic mechanism remains unsettled, photo‑excited carriers appear to fill trap states and smooth the disorder potential, enabling observation of more delicate many‑body phenomena.
Brief Science Items and News
A recent Ars Technica article highlights a quantum‑interference experiment that places events A and B in a superposition of opposite causal orders, echoing the mind‑bending quantum eraser. Advanced Materials published a comprehensive review of rare‑earth and emerging magnetic compounds, pointing...
APS March Meeting 2026, Day 2
Day two of the APS March Meeting showcased cutting‑edge research across condensed‑matter physics and quantum technologies. Edoardo Baldini reported a Berezinskii–Kosterlitz–Thouless transition in monolayer NiPS3, confirming 2D XY magnetism via second‑harmonic generation microscopy. Barry Zink demonstrated how a chromium spin...
APS March Meeting 2026, Day 1
The APS March Meeting Day 1 showcased cutting‑edge research on quantum excitations and emergent materials. Highlights included Hanyu Zhu’s demonstration of chiral phonons producing intense local magnetic fields, and talks on cavity‑magnon control using surface acoustic waves for nonreciprocal devices. Longji...
AI/ML, Multiscale Modeling, and Emergence
Artificial intelligence and machine learning are rapidly reshaping materials design, with major tech firms and startups pursuing inverse‑design platforms that translate target properties into synthesizable compounds. Recent reviews highlight efforts from Google DeepMind, Microsoft, Meta, Toyota Research Institute, IBM and...
Updated: CM/Nano Primer - 2026 Edition
The blog post "CM/nano primer – 2026 edition" aggregates over thirty concise articles covering foundational and advanced topics in nanoscale and condensed‑matter physics. Updated for the first time since 2019, it links to explanations of temperature, quasiparticles, quantum effects, material...