Matches in SemOpenAlex for { <https://semopenalex.org/work/W2073251145> ?p ?o ?g. }
- W2073251145 abstract "At high area fractions, monolayers of colloidal dimer particles form a degenerate crystal (DC) structure in which the particle lobes occupy triangular lattice sites while the particles are oriented randomly along any of the three lattice directions. We report that dislocation glide in DCs is blocked by certain particle orientations. The mean number of lattice constants between such obstacles is ${overline{Z}}_{mathrm{exp}}=4.6ifmmodepmelsetextpmfi{}0.2$ in experimentally observed DC grains and ${overline{Z}}_{mathrm{sim}}=6.18ifmmodepmelsetextpmfi{}0.01$ in simulated monocrystalline DCs. Dislocation propagation beyond these obstacles is observed to proceed through dislocation reactions. We estimate that the energetic cost of dislocation pair separation via such reactions in an otherwise defect free DC grows linearly with final separation, hinting that the material properties of DCs may be dramatically different from those of 2-D crystals of spheres." @default.
- W2073251145 created "2016-06-24" @default.
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- W2073251145 date "2008-08-01" @default.
- W2073251145 modified "2023-10-18" @default.
- W2073251145 title "Restricted Dislocation Motion in Crystals of Colloidal Dimer Particles" @default.
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- W2073251145 doi "https://doi.org/10.1103/physrevlett.101.058302" @default.
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