Issue Date: August 7, 2017
Nanocrystals surprise with superlattice formation
While using small-angle X-ray scattering to study palladium nanocrystal formation, SLAC National Accelerator Laboratory postdoc Liheng Wu and Stanford University graduate student Joshua J. Willis texted their adviser, Stanford’s Matteo Cargnello: “Something weird is happening.” The nanocrystals had suddenly and unexpectedly formed a three-dimensional superlattice—a material akin to a typical inorganic crystal but with nanocrystals serving as the “atoms.” Such superlattices have potential applications in magnetics, electronics, and catalysis, and they are . . .
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