Horst Hahn

2 articles · 30 co-authors · latest: 2026-03-26
179 citations · h-index 3 · 4 papersData: Semantic Scholar

We have retold 2 papers by this author. most often about: dislocation, neutron star, photonic crystals. 30 co-authors across our retellings.

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Materials2026-03-031 minarXiv:2603.02651express
An Alloy That Traps Defects in Place
In a metal crystal, atoms line up in neat rows like bricks in a wall. Knock out a single brick, and you're left with a void — what scientists call a vacancy. Under irradiation, these voids multiply and start merging into large holes, sapping the metal's strength. It's like holes in a brick wall joining up into a gaping breach.
Quantum Physics2026-03-261 minarXiv:2603.25234express
A crystal where light lives longer
A glowing spot in a crystal is like a lighthouse in fog: the longer it shines, the more reliable the signal. In quantum devices, ions of rare-earth metals embedded in a transparent lattice play the role of such a lighthouse. They absorb energy and release it as a flash of light. But if there are atoms with magnetic moments nearby, the flash quickly dies out.