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Soft Skyrmions, Spontaneous Valence and Selection Rules in Nanoparticle Superlattices

TitleSoft Skyrmions, Spontaneous Valence and Selection Rules in Nanoparticle Superlattices
Publication TypeJournal Article
Year of Publication2017
AuthorsTravesset, A
JournalAcs Nano
Volume11
Pagination5375-5382
Date Published06
Type of ArticleArticle
ISBN Number1936-0851
Accession NumberWOS:000404808000019
Keywords2 different, arrangements, binary nanocrystal superlattices, chemistry, crystal-structures, crystallization, entropy-driven formation, Materials Science, nanocrystal, packing fraction, self-assembly, sizes, skyrmions, spheres, superlattices, Technology - Other Topics, vortices
Abstract

), it is possible to identify and classify the ligand textures that determine their bonding. These textures consist of interacting vortices, where the total vorticity defines a spontaneous valence (coordination). Furthermore, skyrmion interactions are governed by two simple assumptions, which lead to a set of selection rules for superlattice structure. Besides resolving all the above paradoxes, the predictions are completely supported-by more than one hundred sixty experiments gathered from the literature, including a wide range of nanocrystal cores and ligands (saturated or unsaturated hydrocarbons, amines, polystyrene, etc.). How those results can be used for addressing more complex structures and guiding future experiments is also addressed.

DOI10.1021/acsnano.7b02219
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