この論文をさがす
抄録
Less-defective colloidal crystals can be used as photonic crystals. To this end, colloidal epitaxy was proposed in 1997 as a method to reduce the stacking defects in colloidal crystals. In this method, face-centered cubic (fcc) (001) stacking is forced by a template. In fcc (001) stacking, in contrast to fcc {111} stacking, the stacking sequence is unique, and thus the stacking fault can be avoided. Additionally, in 1997, an effect of gravity that reduces the stacking disorder in hard-sphere (HS) colloidal crystals was found. Recently, we have proposed a gravitational tempering method based on a result of Monte Carlo (MC) simulations using the HS model; after a colloidal crystal is grown in a relatively strong gravitational field, the defects can be reduced by decreasing the gravity strength and maintaining it for a period of time. Here, we demonstrate this method using MC simulations with a programmed gravitation. The dramatic disappearance of defect structures is observed. Gravitational tempering can complement gravitational annealing; some defect structures that accidentally remain after gravitational annealing (keeping the colloidal crystal under gravity of a considerable constant strength) can be erased. © 2014 American Chemical Society.
収録刊行物
-
- Crystal Growth and Design
-
Crystal Growth and Design 14 (5), 2083-2086, 2014-05-07
American Chemical Society
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390857523699616512
-
- NII論文ID
- 120005463355
-
- NII書誌ID
- AA12478723
-
- ISSN
- 15287505
-
- Web Site
- http://hdl.handle.net/2297/39058
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- IRDB
- CiNii Articles