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Abstract With the aid of high-resolution spatial and temporal observations from the Goode Solar Telescope, we present an investigation of the emergence, coalescence, and submergence of a moving magnetic feature (MMF) in the region surrounding a magnetic pore located at the periphery of a large sunspot. The results show that the MMF has a magnetic field strength greater than 500 G and is dominated by the horizontal magnetic component. We observe upflow at the inner part and downflow at the outer part, indicating a pattern of Evershed flow. The MMF emergence is accompanied by the expansion of a granule, which has several striations inside just like the twisted features found in the penumbra filament. Our analysis shows that although these striations have different properties of magnetic field and kinematics during the expansion of the granule, the overall magnetic and dynamic properties of the MMF remain stable. We find that the region where the MMF emerges and submerges becomes more penumbra-like, i.e., adjacent positive and negative values of elongated magnetic features that are parallel to each other, while the optical penumbra-like features are not apparent at the same time. Our work indicates that the dynamics of the MMF near the magnetic pore is important for the development of filamentary structure. The magnetic configuration produced by an MMF together with the elongation of a granule could thus be key to understand the formation of penumbra filaments. 

Optical phase change materials (OPCMs) have attracted attention for their versatility as nonvolatile photonic modulators. Discovering novel materials or engineering existing ones is therefore crucial to achieving the performance that current materials lack. Here, we employ co‐sputtering to investigate the doping of Si into Sb₂Se₃. We investigate the optical, structural, and thermal properties and compare results with those obtained from first‐principles calculations. We also study the crystallization and melt‐quenching via nano‐differential scanning calorimetry (NanoDSC). We find that 20% Si increases the transparency window in both states, specifically to 800 nm in the amorphous phase, while reducing power consumption by lowering the melting temperature—at the cost of reducing the refractive index contrast and slowing the kinetics of the phase transition. Moreover, we demonstrate switching between the amorphous and crystalline states of Si‐Sb₂Se₃using electro‐thermal switching in photonic integrated devices, ∼100‐µm²microheaters, and the NanoDSC sensor. Importantly, we observe that phase segregation in recrystallized films forms a nanocomposite with Sb₂Se₃grains in an amorphous matrix, allowing both reversible switching and effective‐medium optical properties. By harnessing phase segregation rather than avoiding it, nanocomposites transform a potential failure mechanism into a design strategy, enabling deliberate tuning of OPCM properties through targeted dopant selection. 

Abstract The big data era in biology is underway, but the study of organismal form has been slow to capitalize on advances in imaging and computation. Imaging approaches can digitize whole organisms, but low throughput has limited the effort to document morphological diversity. Here, within the open science initiative ‘Antscan’, we applied high-throughput synchrotron X-ray microtomography to capture phenotypes across a diverse and ecologically dominant insect group: ants. Athttps://www.antscan.info, we provide 2,193 whole-body three-dimensional ant datasets from 212 genera and 792 species to broadly cover the ant phylogeny with a global scope, also pairing phenomic data with genome sequencing projects. Scans acquired with standardized parameters facilitate automated analysis, and free access to data can broaden the audience and incentivize methods development. Antscan presents a scalable approach to create libraries of diverse anatomies, heralding an era of studies on the evolution, structure and function of organismal phenotypes.