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Wow this seems to be a very exciting research field: > Although more than 100 types of quasicrystals have been discovered since 1984, Steinhardt says that an i
by mastazi 5y ago
Wow this seems to be a very exciting research field:
> Although more than 100 types of quasicrystals have been discovered since 1984, Steinhardt says that an infinite number of possibilities may exist — each with their own elastic, electronic, and photonic properties tied to the periodic ordering of their atoms.
> Steinhardt’s own research group has worked to create “photonic quasicrystals,” which act as semiconductors for light and form nearly perfect spherical symmetric band gaps. That feature is desirable in circuit designs and could be used in future computer and communication devices.
- senectus1 5y agoI would imagine that once you start blowing stuff up in zero G you'll get even more interesting results. ie: https://en.wikipedia.org/wiki/Widmanst%C3%A4tten_pattern https://en.wikipedia.org/wiki/Widmanst%C3%A4tten_pattern
- nleconte 5y agoA recent playfield for quasi-crystals have bee realized by making 30 degree twisted bilayer graphene. This playfield has been extended as well using stackings of any 2 different moire systems into one, with a 30 degree misalignmnent between the respective moire angles.
- bedobi 5y agoAre you sure? My understanding was that perturbations resulting from subatomic crevasses in multi-dimensional lattices would render the impedance greater than the Yui-Schwarz limit.
- nleconte 5y agohttps://pubs.acs.org/doi/10.1021/acs.nanolett.0c00172 https://pubs.acs.org/doi/10.1021/acs.nanolett.0c00172 This was not the first work on this, but it's the first that shows with a quick Google search while in the subway. Let me take some time to understand your comment. In the meanwhile, the whole field of superlaticces got a great boost with the first realization of moire systems using hBN, graphene and the like in 2013(?) by P. Kim and others. Before that, indeed, patterning superlattices from the bottom-up had been a laborious and mostly failing endeavor. If that's what you are referring too...
- azeirah 5y agoI have a feeling they were taking the piss
- BizarroLand 5y agoThis made me visualize the periodic table of elements as a 3d stack of cubes, with a cross section of properties conferred by making various crystals out of the pure elements.