observation

The direct observation of highly nonlinear plasma waves

The direct observation of highly nonlinear plasma waves

The highly nonlinear plasma wave (green colored) driven by a strong laser pulse reaches the wave-breaking point, where a fraction of plasma electrons (red colored) are captured by the wakefield and get accelerated. Credit: Igor Andriyash, Yang Wan and Victor Malka. Over the past few decades, physicists and engineers have been trying to create increasingly …

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Eight-Year-Old’s Observation Leads To Major Discovery About Ant-Wasp Collaboration

Eight-Year-Old’s Observation Leads To Major Discovery About Ant-Wasp Collaboration

Hugo Deans was just 8 years old when he noticed what he thought were seeds around an ants’ nest. Other children might have made such an observation and had nothing come of it, but Hugo’s father Andrew is a professor of entomology at Penn State University and realized Hugo had spotted something important. Further investigation …

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The observation of Chern mosaic and Berry-curvature magnetism in magic angle graphene

The observation of Chern mosaic and Berry-curvature magnetism in magic angle graphene

a, Schematic layout showing backgate voltage V_bg^dc+V_bg^ac applied to the MATBG sample and the corresponding change in the local magnetic field B_z^ac (x,y) is imaged using the scanning SOT. The Chern mosaic is shown schematically in the MATBG. b, m_z (x,y,ν_↑) measured at B_a=50 mT and ν= 0.966. The red (blue) colors indicate paramagnetic-like (diamagnetic-like) …

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