crystallography

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#crystallography

Predicting Space Groups of Double Perovskites by LLM with Dynamic Few-Shot Learning

arXiv cs.AI · 2026-08-12 Cached

This paper introduces DyRIS, an LLM-agent framework using dynamic few-shot retrieval and rule-guided inference to predict space groups of double perovskites, achieving competitive accuracy and significantly improving performance on minority space-group classes.

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#crystallography

Unit cell designer for 2d wallpaper groups

Hacker News Top · 2026-05-26

A tool for designing unit cells in 2D wallpaper groups, aiding researchers and educators in crystallography and materials science.

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#crystallography

Miller-Index-Based Latent Crystallographic Fracture Plane Reasoning with Vision-Language Models

arXiv cs.LG · 2026-05-21 Cached

This paper investigates whether multimodal large language models (MLLMs) can leverage Miller indices as a latent representation to reason about crystallographic fracture geometry from visual inputs, evaluating their ability to infer physically valid plane hypotheses and determine when such representation is applicable across materials like ceramics, glass, metals, and concrete.

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#crystallography

Naturally Occurring Quasicrystals

Hacker News Top · 2026-05-14 Cached

A blog post discusses the rarity of naturally occurring quasicrystals, which have only been found in a few exotic locations such as the Khatyrka meteorite, a lightning strike in Nebraska, and the Trinity atomic bomb test site.

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