4 ms·
> While the researchers were not actively looking for any particular defect in the material, the advanced imaging technique uncovered a surface defect, called a
by cinquemb 5y ago
> While the researchers were not actively looking for any particular defect in the material, the advanced imaging technique uncovered a surface defect, called a twin boundary. At either side of the twin juncture, the molecular networks abruptly transformed their handedness.
Reminds me of Q1D models that simulated glassy dynamics[0]:
"We describe numerical simulations and analyses of a quasi-one-dimensional (Q1D) model of glassy dynamics. In this model, hard rods undergo Brownian dynamics through a series of narrow channels connected by $J$ intersections. We do not allow the rods to turn at the intersections, and thus there is a single, continuous route through the system. This Q1D model displays caging behavior, collective particle rearrangements, and rapid growth of the structural relaxation time, which are also found in supercooled liquids and glasses. "
[0]: https://arxiv.org/abs/1401.0960 https://arxiv.org/abs/1401.0960
- phonethrowaway 5y ago> At either side of the twin juncture, the molecular networks abruptly transformed their handedness. this seems rather intuitive to me, and unsurprising. for every action there is an opposite and equal reaction. a spinning cue ball changes directions when it bounces off a rail. it's the same reason circular polarizers let you see through reflections in glass.